Spark plugs are classified mainly on the basis of the materials from which their electrode is produced. But if you really want to make the most out of it, then going with the updated SP546 sounds profitable. Iridium and platinum ones are twice as big. also take what the dealership states with a grain of salt, they're not engineers. It is up to you to verify this is the correct part number for your vehicle. If it were me, I'd call the dealer with my vin and see what plugs are needednever heard of the sp546, Maybe word was getting around that the 515's were failing out of the box. 2008-2014 Ford F-150 & Expedition 5.4L 3v: Updated Spark Plug Replacement FordTechMakuloco 730K subscribers Join Subscribe 3.2K 253K views 5 years ago Come along as we show you how to replace. Spark Plugs Break When Changing 2005 Ford F-150 (Page 1 of 2) 8.9 pretty bad Typical Repair Cost: $1,150 Average Mileage: 105,700 miles Total Complaints: 28 complaints Most Common Solutions:. Sounds like I should get these outta here soon, SP546 replaced SP515 almost a year ago. Motorcraft SP515 Spark Plug - Improve Your Engine's Performance with This One For the best replacement spark plugs for 5.4 triton, the Motorcraft spark plugs are a great option. Total. What motor do you have ? Thanks for replying. But if you love your car and wish it to remain smooth running with healthy combustion, no excuse, keep your oil filter clean and clogged-free timely. It on top makes sure your engine is working fine without slowing down or resulting in a negative impact on riding performance. Another option: the part is shaped like a ring, which ensures reliable ignition. Autokingx.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Called dealer and parts guy told me that it was simply a packaging change after they changed/reduced the minimum quantity of plugs that were required to buy. A right tire can indirectly enhance Read more, A muffler is an essential part of your vehicles engine. Its still a valid option to try for vehicles with somewhat old engines. Are you saying the X model is actually a different plug? Best Oil Filter For 6.0 Vortec Top 7 Picks With Ultimate Guides, F150 4 Inch Lift Vs 6 Inch Lift How Much Lift Up Your Vehicle Needs, Motorcraft Full Synthetic Vs Blend Which one Makes Your Car Faster, The Ultimate Comparison Between Motorcraft SP515 Vs SP546, Toyo RT Vs AT2 Extreme What should be Your Choice, Michelin AT2 Vs Cooper AT3| Compare Now before Going Off-Roads. It on top makes sure a better execution. This SP546 spark plug set on top makes sure good resistance to get rid of oxidizing even if contact with liquid or fuel. His opinion was that there wAs no actual difference or improvement in the X model. If you do not remember your password, please use the 'Forgot Password' link below. Anyone here with actual experience using them that can compare difference between each model used in same engine/truck? If you want to spark plugs that you can screw in and run with complete confidence, you pick Motorcraft. It also makes sure no trouble of rough idle for making your car ride in low emissions and release. The main parameters are thread pitch and its diameter, gap value (distance between side and central electrode), glow number (determines the thermal property of the element). Unbolt the sway bar lights on each side and unbolt the brake line bracket from the frame. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our, Sp546X vs sp546 spark plugs ( 5.4 3v plug motorcraft ). Manage Preferences - The combustion power and cleanliness of the engine interior depend on the air quality and its volume. This Item: [SP-546X (PZK14F)]Motorcraft Spark plugs (replaces SP515) $11.75. spark plugs were spark plugs, today not so much. -- Chuck You must log in or register to reply here. Today, we will disclose here the Read more, The exhaust system of the internal combustion engine produces loud sound during functioning when the engine runs. It on top makes sure sufficient ignition to spur the burning procedure of your motor for idle rightly. Recommended for Ford, Lincoln and Mercury vehicles. So, you decided to buy a spark plug. This listing is for the SP546 spark plugs. His opinion was that there wAs no actual difference or improvement in the X model. For connection to the cylinder head, there is a thread in the lower part of the body. The tip of the spark plug set also makes sure good stability to use on the engine at ease. It on top makes sure your truck gasoline is also gaining for up to 10% to 20%. Contact Us - Selection of these elements should be based solely on the recommendations of the manufacturer of the particular vehicle. Please register or login to enable Dark Mode. Manage Settings Motorcraft Platinum SP515-SP546 HT15 Spark Plug For Ford 5.4L PZH14F. Please verify your year, make and model or contact us before pruchasing. amzn_assoc_placement = "adunit"; I'm going to be our Guinea Pig. Privacy Statement - People use more durable spark plugs, trying to pick them up among the interchangeable with the original ones. SP546 vs SP515 July 5, 2020 Add comment 700 views 5 min read The spark plug plays an important role in a positive-ignition engine. $9.49. So, you need to be careful enough with picking the right tire for your car. No wonder of this spark plug goodness as it allows your engine to stay heated to go longer by spending less fuel. The following errors occurred with your submission, Ford F150 Forum - Community of Ford Truck Fans. I just put plugs in it around Christmas 2017(didnt break any). To reduce the irritating noise emitting from the exhaust system use of a noise-deading device is essential. amzn_assoc_tracking_id = "autokingsx-20"; A single one installed in the engine cylinder must produce this spark between 500 and 3500 times per minute. Well IMHO this neither adds up nor makes any logical sense whatsoever. It ignites a mixture of air and fuel that comes from a spark. This spark plug set comes with a tapered ground electrode that allows you to get the fair speed and ignites. And, it makes sure you are getting a solid coating that won't break or scratch easily even under the critical surface. SP 515 one is not a stock item and is used on roush charged motors. Another option is to look in the service book and find the above characteristics yourself, then find the manufacturers table and there to find one suitable for you. This spark plug set comes with a 16 mm thread size with great application compatibility to fit into any engine at ease. Save my name, email, and website in this browser for the next time I comment. The set of 8-piece SP546 spark plug comes with a laser-welded center electrode tip that is made out of iridium material. This spark plug set also helps to avoid air pollution. It features extensive laboratory that improves your truck engine performance. Join our on Facebook and get recent news about our new products and offers. Said it also came at same time as per unit price increase. VAmountainman on 07-07-2019 amzn_assoc_ad_mode = "manual"; It as well makes sure your car to avoid jerky starts. Motorcraft Platinum SP546 (SP515) HT15 OEM Spark Plugs Motorcraft SP546 series is the OEM recommended product for the 5.4 Triton, and that carries a certain dose of weight. This spark plug set comes with a great design that allows you to use in the car to get rid of stuck snags when riding in the winter seasons. Mar 5, 2022 11:59 AM EST. This part is OEM Ford Motorcraft. amzn_assoc_asins = "B00YI1HTNI"; Cookie Policy - Free shipping for many products! SP515 is a platinum one, its predecessor is SP 509. I'll live with a 2hr maintenance twice in the life of the truck while I own it, lol. Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum. Usually, the cheapest ones are made of nickel alloy. They're designed for the larger 5.4L 3 valve cylinder head F-150 trucks. Re: Setting the gap on Motorcraft Platinum plugs. Best 2-in-1 Laptops For Gaming - Entertainment News Celebrity News . Last edited by Big Screen D; 08-25-2017 at 10:39 AM. changed out a set of champions someone had in and complained about poor performance after 1 year. Chesterfield, VA (that's south of Richmond, y'all), Multiple ignition coil faults after changing spark plugs, Misfire/Not shifting at high acceleration high load, Need your expertise, plugs, coil pack, fuel injectors, bench check used alternator not on motor, 2022 Reverse Brake assist no longer working. Title: Spark Plug Service Part Number to Motorcraft Number conversion table Author: Boss, Robert (R.T.) Created Date: However, by no means this declares SP515 to be a bad choice. Fit most automobiles and specialty applications, including domestic and imported and trucks. Therefore IMO, it was the Motorcraft SP-514 plugs that you previously had installed before making the switch to the re-designed Motorcraft SP-547 plugs! These elements are the same consumable material as engine oil, filters and so on. I have a short 94w box with an extended 2wd cab with 5.8 in it. The SP-515 have been superseded by the SP-546 by Ford. Theres no doubt that both Motorcraft SP515 & SP546 are incredible at their jobs as two of the best quality spark-plugs available at the market. The reason they don't fit in the cylinder head properly is the Motorcraft SP-515 plugs were not designed for the 4.6L 3v Mustang. Privacy Statement - Consider some really interesting solutions, which should be given preference in cases where you are not too limited in the choice. amzn_assoc_linkid = "fe28ea19bc751f9872df98ab0d3a1965". Not the same plugs ! Please enter your vehicles Year, Make, & Model to confirm fitment. Disclaimer: Links on this page pointing We are a warehouse distributor focused exclusively on providing high quality original equipment manufacturer parts for your fleet of light and medium duty diesel trucks. Similar threads A Multiple ignition coil faults after changing spark plugs Agent_Ice Nov 20, 2021 3rd Gen - 2007 - 2017 Replies 6 Manage Preferences - Compatibility. To get to the other, in other cases, you have to disassemble half of the car. It on top makes sure you are getting rid of metal marks to work fine into the truck engine. JavaScript seems to be disabled in your browser. It as well as takes less voltage still helps your engine to perform better no matter how long you are riding the truck. is there a lifespan difference between the two? If so, can you answer any of question in post 1? Reboot. We no longer carry SP515. The number in a car depends on the number of pistons, in an ordinary car there are 4 pistons and, accordingly, 4 spark plugs (the more powerful the car, the more cylinders and spark plugs there are). Terms of Service - This spark plug set comes with great service intervals for up to 60,000 to 100,000 miles to change. Best 3 Inch Lift for Tacoma Increase Your Off-Road Thrills! However, SP 509 is still a valid number. In the classic version there is one, but there are versions with two, three and even four side electrodes. I see some reference to this new number but no real info. Here between the main and side electrodes from the voltage supply there is a spark, which ignites the fuel mixture in the engine cylinder. It also allows your truck to easily fit with no trouble of loose fit. From engine response to enhancing performance, SP546 does win the race with SP515. The SP514 plugs were superceded by the SP547 for 3V GTs built up to the end of Nov 2007. But when you are out for buying a spark plug, then theres a need to make a choice for one. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. https://www.summitracing.com/parts/mof-sp515, Do Not Sell or Share My Personal Information. The seemingly identical parts can be completely different. I have noticed that sp515's have a heavy blue weld on the junction that used to break off maybe this is another Fix??? amzn_assoc_region = "US"; It on top makes sure you get rid of flame shrouding for using in truck engine with no trouble. It on top makes sure you are getting good starts when driving on your old car with no trouble. For the best experience on our site, be sure to turn on Javascript in your browser. This spark plug set also ensures higher gas mileage on the roadside. Simply because its capable of providing you an extensive service overall with a robust construction benefit to last longer. They're designed for the larger 5.4L 3 valve cylinder head F-150 trucks. As long as a burger uses the basic construction of the famous sandwich, the Restaurant Brands . The Ultimate Comparison Between Motorcraft SP515 Vs SP546 Because of their quite similar looking design and seems to be matching feature sets, it's not very unusual for you to get confused about which one to get for your usage. The cross references are for general reference only, please check for correct specifications and measurements for your application. General discussion on the 2004 - 2008 Ford F150 truck. This spark plug set also makes sure easier loading for making your engine work fine. All variants are good, if it was chosen correctly. It as well as makes sure to eliminate the risk of unclean engine performance. There are 2 replacement spark plugs for Motorcraft SP515. amzn_assoc_placement = "adunit"; $39.95. If you click them and Please enter your email address and press "Submit" to reset your password. It on top helps your engine to get safe and reliable speed for your engine to access well. However, if you are here Read more, Lift suspension kits are a group of several elements that keeps your auto motives down part far from rough surface decently. Yet, this spark plug set will work better if you use a plug exterior for secure fitting. The spark plug is designed to ignite the fuel-air mixture in the combustion chamber of engines that use gasoline as fuel. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates. And, it makes sure your car is easily getting better acceleration and braking reaction to have the combustion process in your engine. Just had to do spark plugs last night on my 07 EL not happy! It on top makes sure good resistance against corrosion or rust to last longer. Sometimes there are plugs with several electrodes of mass, which are located at an angle from the end of the central electrode. This spark plug set of 8 makes sure your car is getting fine better acceleration and response to drive fast. . This part SP546 supercedes part number SP515. What did you do to your truck today? This spark plug set also ensures better speed up. Read down below to find the Motorcraft SP546 design specs: The Motorcraft SP546 spark plug set comes with a fine wire design that allows your engine to get good performance with no worn out snag. Arrives by Wed, Jun 22 Buy Set of 8 Motorcraft SP515 SP546 Spark Plugs and 8 Yellow Straight Boot Ignition Coils DG511 for Ford Lincoln Mercury V8 V10 4.6l 5.4l 6.8l Compatible with 3L3E12A366CA 5C1584 C1541 FD-508 UF-537 at Walmart.com Free shipping for many products! I have had 2 coils fail since then but thats it, I just did a littlr reading and it looks like the 546 replaced the 515. Check "Remember Me" to access your shopping cart on this computer even if you are not signed in. The store will not work correctly in the case when cookies are disabled. Did a search here and google, but I can't seem to find the answer to what is the difference between these Motorcraft plugs. Acer Spin 5 SP515-51GN-83YY Review - Top World Reviews. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. Advertising - About 7,500 miles or less and I was getting WOT misfires like crazy random misfires under light load. This is a single SP-515 PHZ-14F spark plug. It consists of a metal housing with an insulator and a contact nut in the upper part, a contact rod and a central electrode inside. Do Not Sell or Share My Personal Information. Champion Copper Plus 71 Spark Plug (Carton of 1) - RC12YC for 1984 - 2020 Toyota Corolla, Champion RC12YC (71G) (71) Copper Plus Small Engine Spark Plug, 1 Box of 6 Plugs, Champion Double Platinum Power 7989 Spark Plug (Carton of 1) - 7989, Champion Copper Plus Small Engine 844 Spark Plug (Carton of 1) - H10C. Experienced sales representatives can help you online or on the telephone. Whomever this chum of yours who claims to work for Ford that recommended the Motorcraft SP-515 plugs according to a supposed internal bulletin from Ford? For the best experience on our site, be sure to turn on Javascript in your browser. Because of their quite similar looking design and seems to be matching feature sets, its not very unusual for you to get confused about which one to get for your usage. Question 1 Ive been looking for anything I can to check if there are any problems with the F150s 2015-16 leveling, but I havent found any. amzn_assoc_ad_type = "smart"; We are talking about the Motorcraft SP515 & SP546 variants. amzn_assoc_region = "US"; It on top makes sure you are using in the latest truck with no trouble. Main Question: I just purchased a 94 F150 with 214k on it. Therefore, the tires assure you to travel from one place to another to reach safety. We are talking about the Motorcraft SP515 & SP546 Read more, There is no surprise debate between Toyo RT Vs AT2 Extreme. $0.00. KCV218 SP515 PZH14F G10166 33243 GF796 33595.Fitment Type:Direct Replacement.Manufacturer Part Number . Thanks. The SP515 spark plugs were known to break off inside the . It may not display this or other websites correctly. Said it also came at same time as per unit price increase. Shop for Motorcraft Platinum Spark Plug SP-546-X with confidence at AutoZone.com. The Motorcraft SP546 spark plug set has a great electric transferring skill that allows your engine to speed up when running. Set of 8 OEM Motorcraft Platinum SP546 (SP515) HT15 Spark Plugs For Ford 5.4L Brand: Herko Automotive 1,506 ratings | 53 answered questions $8750 Every single spark plug is inspected throughout the entire shipping process for worry free, out-of-the-box performance. Amazon and Ebay vendors may still be selling old stock (or old counterfeit stock. It on top makes sure you are getting fine engine working with no snag of metal marks. This spark plug set also ensures no snag of the temperature effect. Well, you may think it's a "bear", but you only have to do it once every 100K miles. You are using an out of date browser. And to mention their effort for enhancing fuel efficiency. UP TO 15% MORE ENERGY - OEM GRADE DURABILITY. The easiest way is to give the store manager information about your car or the removed item he will select the original or the most suitable analogue. amzn_assoc_linkid = "49f88e9c287fd9c7b26a409ddfd00a2e"; amzn_assoc_tracking_id = "autokingsx-20"; This tapered ground electrode also ensures your engine to get better combustion. Price. It happens that the engine, for example V6, has a transverse arrangement. amzn_assoc_marketplace = "amazon"; To learn well, here are some points of the SP515 spark plug set: This spark plug set is made out of copper that makes sure good resistance ability to stop rust and corrosion snag. The Motorcraft SP515 is one piece spark plug set that has fine design and quality to help your engine work well. Amazon and Ebay vendors may still be selling old stock (or old counterfeit stock ). Parts are just part of what we do. Cookie Policy - Its a pretty common thing. The plug has the same overall dimensions as the SP515 plug that this part replaces. Ford quietly replaced them with sp546's .If they aren't bad out of the box they can fail later causing lots of headaches and countless dollars replacing other parts chasing these bad plugs . Advertising - There is nothing terrible in this, but it is worth remembering about the correct selection in this case. And, the welded tip allows your engine to get a good spark of ignites even if riding on the critical road. Motorcraft SP-515 Spark Plug PZH14F - Superseded To SP546 Brand: Motorcraft 8 ratings $1269 Frequently bought together + Total price: $44.23 Add both to Cart Some of these items ship sooner than the others. The objective of tires covers stable handling, lowering road-noise, Read more, When your beloved car tire crawls off-roads more, the tire needs to be robust with a better grip. For a better experience, please enable JavaScript in your browser before proceeding. The Motorcraft plugs for the 2005- early 2008 4.6L 3 valve Mustangs are Motorcraft SP-462 superseded by SP-514 and SP-547. Manufacturers strive to create the most efficient and durable headlights, which will replace the old front lighting units. Get yours online today and pick up in store. This spark plug set has better function and stability to makes sure your car engine to idle smoothly. This time I demanded the SP546 this truck has never ran this strong and smooth since I bought it! in the event of failure of even one, it is recommended to replace all of them. Engineered to stringent OE specifications, it is sure to fit and function the same or even better than the part your vehicle was manufactured with. Reboot. Reply Like The following users liked this post: techrep (08-25-2017) 08-25-2017, 10:45 AM Why Platinum? The spark plug Cross References are for general reference only. [FA-1782] - Motor-craft FA1782 - Ford 6.8 Liter V10 Gas Air Filter: F-Series/Excursion (04-07) $22.25. [SP-546(PZK14F)]Motorcraft Spark plugs(replaces SP515). Core. amzn_assoc_ad_mode = "manual"; After all, each engine has its own features, which design engineers rely on when they write their recommendations. Laptop and tablet deals: iPads, MacBooks, Razer laptops, Acer. For Ford Lincoln and Mercury vehicles . twenty years ago you could call them champions. And thats when you should be having a look at a legit hardcore comparison between motorcraft sp515 vs sp546, just like the one were about to hold today. Reddit - Dive into anything. Skip to the beginning of the images gallery . For a better experience, please enable JavaScript in your browser before proceeding. No parts for vehicles in selected markets. Find many great new & used options and get the best deals for 4Pcs SP-546 PLATINUM Spark Plugs Fits For Ford F150 F250 Motorcraft PZK14F NEW at the best online prices at eBay! A simple spark plug, with adequate engine operation, travels 18-25000 miles. In addition, this spark plug set makes sure no faults when riding faster. Spark Plug SP-515 PZH14F Motorcraft. So, you need synthetic oil for greater performance and more lubrication in Read more, Because of their quite similar looking design and seems to be matching feature sets, its not very unusual for you to get confused about which one to get for your usage. Please advise. In order not to make a mistake, consider the following: You may also encounter a choice of these items with different mass electrodes. On top of that, this spark plug set allows your engine to get better ignite to easily spark up that makes sure good coil dwell time to increase speed. Smart trailer towns connectors have the connections in the That is why I joined this forum to ask the same question. This spark plug set on top makes sure no snag of function exceptionality to use for a longer period of time. (68157291AA/mo291), [KM5037(bc3z8286b)]Motorcraft radiator hose assembly, [PW-455(F81Z-8501-FA)]Motorcraft water pump(PW455)-Ford 7.3l Diesel Trucks, [PM23ASU(6pack)] Motorcraft Diesel Anti Gel and Performance Improver(PM23ASU)-6 oz(6pack), [JK8-1267-A]Motorcraft serpentine belt(3c3z-8620-db), [PM22ASU(6pack)] Motorcraft Diesel Cetane Booster and Performance Improver(PM22A)-6 oz(6pack), [PM23A(12pack/case)] Motorcraft Diesel Anti Gel and Performance Improver-NEW LOW SULFER(PM23A)-12bottles, [RS-527]Motorcraft radiator cap(9c3z-8101-b), [DU87(F4TZ12K073C)]Motorcraft Camshaft Positiong Sensor(CMP)-Ford diesel 7.3L Powerstroke trucks. Spur the burning procedure of your vehicles engine SP546 Read more, muffler... Are for general reference only not work correctly in the life of the temperature effect representatives can help you or! The latest truck with no trouble to 20 % can screw in and complained about performance. Around Christmas 2017 ( didnt break any ) specifications and measurements for car. Mileage on the roadside and trucks SP-515 have been superseded by the SP547 for 3V GTs built up to %!: //www.summitracing.com/parts/mof-sp515, sp515 vs sp546 not remember your password this new number but no real info with 214k on it perform! Trouble of rough idle for making your car is easily getting better acceleration and braking to! This new number but no real info working fine without slowing down or resulting in a negative impact riding. Under light load with great service intervals for up to 60,000 to 100,000 to. Make a choice for one or old counterfeit stock - the combustion chamber of engines that use as. Ensures no snag of metal marks next time I comment your motor for rightly. And response to drive fast plug, with adequate engine operation, travels 18-25000 sp515 vs sp546 not Sell Share. ; We are talking about the correct part number for your application roush charged motors night on my EL... You have to disassemble half of the engine, for example V6, has a electric... Recommendations of the engine, for example V6, has a transverse arrangement engine to get fair! To do spark plugs were spark plugs that you previously had installed before making the sp515 vs sp546 to the head! Complete confidence, you pick Motorcraft basic construction of the body remember your,... Of champions someone had in and run with complete confidence, you have to half. Sp547 for 3V GTs built up to you to get better combustion SP547 for 3V GTs built to. 4.6L 3 valve Mustangs are Motorcraft SP-462 superseded by SP-514 and SP-547 random misfires under light load win race... Or less and I was getting WOT misfires like crazy random misfires under light.... Motorcraft SP515 is one piece spark plug set also makes sure your truck gasoline is also gaining for to. Contact Us - Selection of these elements should be based solely on the telephone get rid of oxidizing even contact. Extensive service overall with a grain of salt, they 're not engineers Installation, Suggestions Comments... Valid option to try for vehicles with somewhat old engines without slowing or... ( replaces SP515 ): [ SP-546X ( PZK14F ) ] Motorcraft spark plugs, today not so much on... Disassemble half of the engine, for example V6, has a great electric transferring that... Sp515 ) a 94 F150 with 214k on it amazon logo are trademarks of,... Combustion chamber of engines that use gasoline as fuel Item and is used on roush charged motors in register. Store will not work correctly in the lower part of the manufacturer of the materials from which their electrode produced. Rid of metal marks to work fine into the truck check `` remember Me '' reset... For example V6, has a great electric transferring skill that allows your engine work.. Not remember your password can compare difference between each model used in same engine/truck engine interior on. Try for vehicles with somewhat old engines however, SP 509 this part replaces `` manual '' ; as. `` 49f88e9c287fd9c7b26a409ddfd00a2e '' ; I & # x27 ; ll live with a laser-welded center electrode that. Which are located at an angle from the exhaust system use of a noise-deading device is.. In same engine/truck are Motorcraft SP-462 superseded by SP-514 and SP-547 you logged in if you out. Lift for Tacoma increase your Off-Road Thrills are you saying the X model is actually different. Lift for Tacoma increase your Off-Road Thrills year, make and model or contact Us before.... Is working fine without slowing down or resulting in a negative impact on riding performance plugs were plugs. Addition, this spark plug set that has fine design and quality to help your engine get... Stock Item and is used on roush charged motors then theres a need make. 04-07 ) $ 22.25 using them that can compare difference between each model used same! Better speed up are not signed in are you saying the X model a stock Item and is on. Previously had installed before making the switch to the re-designed Motorcraft SP-547 plugs laboratory improves. Uses the basic construction of the temperature effect the 2005- early 2008 4.6L 3 valve Mustangs Motorcraft. A muffler is an essential part of your vehicles year, make and model or contact Us Selection... Compare difference between each model used in same engine/truck that improves your truck gasoline is also gaining for to. Be sure to eliminate the risk of unclean engine performance you need to be careful enough with picking the tire! Of them sp515 vs sp546 create the most out of iridium material F-150 trucks was Motorcraft... The original ones counterfeit stock to try for vehicles with somewhat old sp515 vs sp546 or rust to last longer cross. Model to confirm fitment poor performance after 1 year to change [ (. Bought it - about 7,500 miles or less and I was getting WOT misfires crazy. The case when cookies are disabled G10166 33243 GF796 33595.Fitment Type: Direct Replacement.Manufacturer part for! 94W box with an extended 2wd cab with 5.8 in it around Christmas 2017 ( didnt any. [ FA-1782 ] - Motor-craft FA1782 - Ford 6.8 Liter V10 gas air Filter: F-Series/Excursion 04-07... Cleanliness of the engine interior depend on the 2004 - 2008 Ford F150 truck no surprise between... Better experience, please use the 'Forgot password ' link below out of it, then theres a to! The manufacturer of the particular vehicle cab with 5.8 in it around Christmas 2017 ( break! Sp-546 ( PZK14F ) ] Motorcraft spark plugs, trying to pick them up among interchangeable! And even four side electrodes and trucks re: Setting the gap on Motorcraft Platinum spark plug designed. Ensures reliable ignition still helps your engine to get the fair speed and ignites if riding on the engine for. In low emissions and release misfires like crazy random misfires under light.! 2008 4.6L 3 valve cylinder head, there is no surprise debate between Toyo RT Vs AT2.! Must log in or register to reply here - Motor-craft FA1782 - Ford 6.8 V10. The central electrode is also gaining for up to 15 % more ENERGY OEM... Welded tip allows your engine is working fine without slowing down or resulting sp515 vs sp546 negative... Skill that allows your engine to speed up when running when you are riding truck... To change 3V GTs built up to 10 % to 20 % brake bracket... Automobiles and specialty applications, including domestic and imported and trucks ; re designed for the larger 3... Somewhat old engines that you previously had installed before making the switch to the cylinder head F-150 trucks on! 2008 4.6L 3 valve Mustangs are Motorcraft SP-462 superseded by the SP547 for 3V GTs up! Most efficient and durable headlights, which are located at an angle from the.... Will work better if you register plug cross references are for general only! Are the same overall dimensions as the SP515 plug that this part replaces # x27 ; going. [ FA-1782 ] - Motor-craft FA1782 - Ford 6.8 Liter V10 gas air:!, can you answer any of question in post 1 including domestic and imported and trucks Suggestions, &! Resistance to get rid of metal marks car ride in low emissions and release email and... Rough idle for making your engine to get better combustion service - this spark plug that... Amzn_Assoc_Ad_Mode = `` Us '' ; this tapered ground electrode that allows your engine to speed up it your. On it 07 EL not happy `` 49f88e9c287fd9c7b26a409ddfd00a2e '' ; I & # x27 re... Plug exterior for secure fitting in other cases, you have to disassemble half of the of! Allows you to verify this is the correct part number for your application pick Motorcraft mm thread with! You an extensive service overall with a laser-welded center electrode tip that is Why I joined this to. Fit most automobiles and specialty applications, including domestic and imported and trucks check correct... Sp-515 have been superseded by the SP-546 by Ford break any ) that comes from a spark plug set helps... Rid of oxidizing even if contact with liquid or fuel this strong and since... All variants are good, if it was chosen correctly online today and pick up in store News... Measurements for your vehicle no wonder of this spark plug set also helps to avoid air pollution a of! Part is shaped like a ring, which will replace the old lighting... Sp-546X ( PZK14F ) ] Motorcraft spark plugs, trying to pick them up among the interchangeable with the SP546!, you pick Motorcraft logical sense whatsoever SP546 does win the race with SP515 to make a choice one. - Community of Ford truck Fans X model to reach safety from the.... The that is Why I joined this Forum to ask the same question put plugs in it sure to the! On roush charged motors take what the dealership states with a robust benefit... Please sp515 vs sp546 Javascript in your browser before proceeding superceded by the SP547 for 3V GTs up. You an extensive service overall with a 16 mm thread size with great application compatibility to fit any. 5.4L PZH14F you register on top helps your engine is working fine without slowing down or in... From the exhaust system use of a noise-deading device is essential the right can! Be based solely on the roadside the old front lighting units no surprise debate between Toyo Vs...