The Fora platform includes forum software by XenForo. Join our on Facebook and get recent news about our new products and offers. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Burger King has come pretty loose with using its iconic Whopper name. There are spark plugs in the head of the cylinder block. If you want to restore the original performance of your vehicle's ignition system, this product is what you need. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. The electrode of an iridium or platinum spark plug, respectively, is made of a more expensive, refractory metal, which is better able to withstand overload. Privacy Statement - Just purchased for 2005 5.4 3v. Created by Ballisticparts.com, Chevy Truck Losing Power When Accelerating, How to Replace Blend Door Actuator Dodge Caravan, Best Cold Air Intakes for 7.3 Powerstroke, All Season Engine Oils: Best Oils For 6.7 Powerstroke Diesel, Daystar Leveling Kit Install on a Ford F150, Complete Sets of Best Coil Springs for Jeep TJ, Best 5W-30 Oil for Cars and Trucks in 2020, Tips for an Organized and Stress-Free Long Distance Moving, How Much Does It Cost To Replace Lifters In A Truck, How to Install Lower Ball Joint Without Press. Spin 5 - Acer United States. But the cost of such elements will be much higher. Husky Bed Liner Vs BedRug | Pick Your Ultimate Truck Bed Protection, Nitto Trail Grappler Vs Cooper ST Maxx Trying to Hunting Best One. It as well makes sure your car to avoid jerky starts. This spark plug set as well you are getting fine performance in the engine to get the precise fitting. If you do not remember your password, please use the 'Forgot Password' link below. It on top makes sure you are getting noticeable performance when riding on any road condition at a good speed. It on top makes sure you are getting good starts when driving on your old car with no trouble. It comes with a precise seating style of the ground electrode that makes sure your engine is handling the load. The main difference is their service life. amzn_assoc_ad_type = "smart"; Sounds like I should get these outta here soon, SP546 replaced SP515 almost a year ago. 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. 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! If you click them and AD Auto Parts Motorcraft SP515 Spark Plug Set, Toyo RT VS AT2 Extreme What should be Your Choice, Michelin AT2 Vs Cooper AT3 Which One will You buy. It may not display this or other websites correctly. Any use of this cross reference is done at the installers risk. 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. Application . With the 14mm thread size, the spark plug set allows your engine to get rid of fuel extra spending to drive well. Frequently Bought Together. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. It on top makes sure parts to never face any burning or misfires when igniting. 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! Manage Settings For a better experience, please enable JavaScript in your browser before proceeding. 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 spark plug plays an important role in a positive-ignition engine. Mar 5, 2022 11:59 AM EST. We are talking about the Motorcraft SP515 & SP546 Read more Toyo RT Vs AT2 Extreme - What should be Your Choice It on top makes sure you are getting iridium fine wire that makes sure no snag of fouling. 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 ). This listing is for the SP546 spark plugs. It on top makes sure you are getting a higher melting point to perform fine while riding on the street. 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. Magnapack Vs Glasspack Which One Sounds Better? The SP-507's broke .. replaced by the SP-515's.. never heard of the SP-546. This spark plug set has better function and stability to makes sure your car engine to idle smoothly. His opinion was that there wAs no actual difference or improvement in the X model. The SP515 spark plugs were known to break off inside the . Please enter your email address and press "Submit" to reset your password. Sp546X vs sp546 spark plugs ( 5.4 3v plug motorcraft ) What are the "alleged" differences between sp546X vs. plain sp546, why the new model? And, it makes sure you are getting a solid coating that wont break or scratch easily even under the critical surface. This spark plug set as well as makes sure you are strong casting for getting flexibility and durability. Its still a valid option to try for vehicles with somewhat old engines. It ignites a mixture of air and fuel that comes from a spark. 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. in the event of failure of even one, it is recommended to replace all of them. For the best experience on our site, be sure to turn on Javascript in your browser. This tapered ground electrode also ensures your engine to get better combustion. Laptop and tablet deals: iPads, MacBooks, Razer laptops, Acer. The fact that it took about 45 minutes isnt what bothered me. 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. KCV218 SP515 PZH14F G10166 33243 GF796 33595.Fitment Type:Direct Replacement.Manufacturer Part Number . Did a search here and google, but I can't seem to find the answer to what is the difference between these Motorcraft plugs. Replaces PZT14F PZT1F PZT2F PZT2FF4 SP421 SP462 SP507 SP515. You must log in or register to reply here. It also makes sure no trouble of rough idle for making your car ride in low emissions and release. The set of 8-piece SP546 spark plug comes with a laser-welded center electrode tip that is made out of iridium material. Save my name, email, and website in this browser for the next time I comment. Skip to the end of the images gallery . [FA-1782] - Motor-craft FA1782 - Ford 6.8 Liter V10 Gas Air Filter: F-Series/Excursion (04-07) $22.25. amzn_assoc_asins = "B00YI1HTNI"; The SP-546 is Ford's most current replacement for any application that previously called for the SP-515. Reboot. VAmountainman on 07-07-2019 And to mention their effort for enhancing fuel efficiency. The plug has the same overall dimensions as the SP515 plug that this part replaces. I just put plugs in it around Christmas 2017(didnt break any). A single one installed in the engine cylinder must produce this spark between 500 and 3500 times per minute. We and our partners use cookies to Store and/or access information on a device. 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. JavaScript is disabled. Usually they are executed in the shape of the letter G. SP515 vs SP546 plugs tbear853 on 06-17-2019 08-01-2019 11:16 AM by SoonerTruck 14 16,213 2007 f150 no crank issue 07f150smith on 07-31-2019 07-31-2019 09:44 PM by 07f150smith 0 688 Power steering reservoir leaking? Contact Us - It features extensive laboratory that improves your truck engine performance. RockAuto name, logo and, If you do not have an account but would like to check the status of an order, request a change, or report a problem with an order or shipment, please go to our, Please click 'Part Catalog' tab above to find your vehicle and verify application, ^ Could ship from same location as parts in cart, PZH14F, PZK14F, SP421, SP462, SP507, SP515, SP546X. Continue with Recommended Cookies, Generally, the oil filter will get dirty over time. A single one installed in the engine cylinder must produce this spark between 500 and 3500 times per minute. Choosing the correct Read more. Its a pretty common thing. 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. Recommended for Ford, Lincoln and Mercury vehicles. This spark plug set of 8 makes sure your car is getting fine better acceleration and response to drive fast. Not the same plugs ! Manage Preferences - SP507, SP515: Warranty Information: 24 months/unlimited miles; Motorcraft warranties are valid to U.S. customers only This SP546 spark plug set on top makes sure good resistance to get rid of oxidizing even if contact with liquid or fuel. This part is OEM Ford Motorcraft. This spark plug set also ensures higher gas mileage on the roadside. Experienced sales representatives can help you online or on the telephone. Last edited by Big Screen D; 08-25-2017 at 10:39 AM. Anyone here with actual experience using them that can compare difference between each model used in same engine/truck? We are talking about the Motorcraft SP515 & SP546 Read more, There is no surprise debate between Toyo RT Vs AT2 Extreme. We no longer carry SP515. It on top makes sure your truck gasoline is also gaining for up to 10% to 20%. Theres also a side electrode. It on top makes sure your engine is working fine without slowing down or resulting in a negative impact on riding performance. Free shipping for many products! That being said, I would strongly advise asking your chum to provide you with this internal bulletin from Ford that supposedly recommends installing the oversized SP-515 plugs, before taking a severe risk of causing serious thread damage to your cylinder heads. The spark plug Cross References are for general reference only. 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. SP 515 one is not a stock item and is used on roush charged motors. It on top makes sure you are getting rid of metal marks to work fine into the truck engine. In addition, this spark plug set makes sure no faults when riding faster. Therefore it is worth paying attention to the frequency of their replacement. Please register or login to enable Dark Mode. This spark plug set on top makes sure better resistance to drive well. Best 2-in-1 Laptops For Gaming - Entertainment News Celebrity News . 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. Husky Bed Liner Vs BedRug-A Hard-hitting Battle, Nitto Trail Grappler Vs Cooper ST Maxx-Trying to Hunting Best One, 0W20 Vs 5W20 Synthetic Oil Battle of Oil King in Winter Regions. 5 Best Suspension Lift For Tacoma That Ensures Comfortable Riding, Toyo RT Vs AT2 Extreme What should be Your Choice, Motorcraft Full Synthetic Vs Blend Which one Makes Your Car Faster, Fine quality and accurate fit to make the most of performance, Reliable one that gives good ignitability and long life execution. changed out a set of champions someone had in and complained about poor performance after 1 year. It happens that the engine, for example V6, has a transverse arrangement. In order not to make a mistake, consider the following: You may also encounter a choice of these items with different mass electrodes. Show details This item: Motorcraft SP-515 Spark Plug PZH14F - Superseded To SP546 $12.69 Motorcraft DG511 Ignition Coil $31.54 It on top has a thin layer that allows you to get easier feed. Spark Plug SP-515 PZH14F Motorcraft. 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. We and our partners share information on your use of this website to help improve your experience. 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 FordPartsOne.com - All Rights Reserved, Motorcraft SP515 PZH14F SP 515 Spark Plug. Structurally, this element consists of the main electrode, which, like a rod, goes through its center. This spark plug set also ensures better speed up. This spark plug set also ensures no snag of the temperature effect. there is a lot of fine-tuning with spark plugs and specific vehicles today. However, by no means this declares SP515 to be a bad choice. For the best experience on our site, be sure to turn on Javascript in your browser. Powerful diesel engines and 6.0 Powerstroke engines assume high loads, especially if the vehicle is operated in harsh conditions or mountainous terrain. Please verify your year, make and model or contact us before pruchasing. $0.00. Reboot. To reduce the irritating noise emitting from the exhaust system use of a noise-deading device is essential. DRAGON FIRE PERFORMANCE Tune Up Kit 8pc IRIDIUM Spark Plug Set & Ignition Coils Compatible with Ford 2004-08 F150 F250 F350 Truck Expedition Navigator 5.4L 4.6L V8 SP515 SP546 DG511 FD508 Fit Kit-1522. The store will not work correctly in the case when cookies are disabled. The tip of the spark plug set also makes sure good stability to use on the engine at ease. It's a lot easier to change the plugs on a SBF/SBC, but you do it a hell of a lot more often on those than on today's engines. Just had to do spark plugs last night on my 07 EL not happy! This product includes FREE SHIPPING & ships same day if ordered by 3:30 pm PST (6:30 pm EST) Monday-Friday. We are talking about the Motorcraft SP515 & SP546 variants. It on top makes sure better durability stand against opposition. Manufacturers strive to create the most efficient and durable headlights, which will replace the old front lighting units. Price. Check for correct application and spec/measurements. They're designed for the larger 5.4L 3 valve cylinder head F-150 trucks. No parts for vehicles in selected markets. The variety ofF250 headlightsfor old pickups today is surprising. The Motorcraft plugs for the 2005- early 2008 4.6L 3 valve Mustangs are Motorcraft SP-462 superseded by SP-514 and SP-547. [SP-546(PZK14F)]Motorcraft Spark plugs(replaces SP515). Mufflers help to reduce this noise and make your journey comfortable and quieter. Simply because its capable of providing you an extensive service overall with a robust construction benefit to last longer. 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. Motorcraft SP546 Spark Plug Review of Main Specs: The SP546 is a fine-wire, platinum spark plug that is intended to handle extremely high temperatures inside the combustion chamber and provide long service life. In the classic version there is one, but there are versions with two, three and even four side electrodes. About 7,500 miles or less and I was getting WOT misfires like crazy random misfires under light load. Amazon and Ebay vendors may still be selling old stock (or old counterfeit stock ). It as well as takes less voltage still helps your engine to perform better no matter how long you are riding the truck. Copyright 2023 Dieselfiltersonline.com, Inc. All rights reserved. Cookie Policy - General discussion on the 2004 - 2008 Ford F150 truck. 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. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more! 2008_XL on 03-23-2016 07-30-2019 08:43 PM by Justin C 2 4,660 Preventing the cam phaser issue? The Motorcraft plugs for the 2005- early 2008 4.6L 3 valve Mustangs are Motorcraft SP-462 superseded by SP-514 and SP-547. MOTORCRAFTSP546Finewire PlatinumInfo Category: Spark Plug Choose ($9.49/Each){4}+ $37.96 ^(Only 1 Remaining) ($10.70/Each){1}+ $10.70 ^ ($9.49/Each)x4$37.96 ($9.49/Each)x4$37.96 (Only 1 Remaining) ($10.70/Each)x1$10.70 Intentionally blank Intentionally blank Choose ^ Could ship from same location as parts in cart But if you really want to make the most out of it, then going with the updated SP546 sounds profitable. amzn_assoc_ad_type = "smart"; Title: Spark Plug Service Part Number to Motorcraft Number conversion table Author: Boss, Robert (R.T.) Created Date: Magnapack Vs Glasspack Which One Sounds Better? Sp 515's are a failed production , the blue weld at the junction we believe causes internal damage . 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. The consent submitted will only be used for data processing originating from this website. The original ones were the SP507. 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). . Check "Remember Me" to access your shopping cart on this computer even if you are not signed in. The Motorcraft SP546 spark plug set has a great electric transferring skill that allows your engine to speed up when running. This time I demanded the SP546 this truck has never ran this strong and smooth since I bought it! Spark Plug Iridium; Gap: .054 Material Grade: Iridium Hex Size (in): 5/8 Inch Hex Size (mm): 16mm Compare Autolite Iridium XP Spark Plug - XP5144 Part #: XP5144 Line: ATO 1.0 (1) Select a store to see pricing & availability or search by City & State or Zip: Spark Plug Iridium; Gap: .043 Material Grade: Iridium Hex Size (in): 5/8 Inch The SP514 plugs were superceded by the SP547 for 3V GTs built up to the end of Nov 2007. PZH14F SP515 PZH1F SP514 TT10 SP488. You are using an out of date browser. [SP-546X(PZK14F)]Motorcraft Spark plugs(replaces SP515). Please create a password for your account. Thanks for replying. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Get yours online today and pick up in store. More Information for MOTORCRAFT SP546 {Alternate Inventory Numbers: SP546X, PZK*14F*} Continue Shopping MOTORCRAFT SP546. 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. There are 2 replacement spark plugs for Motorcraft SP515. Since I am warning lots of people of out of the box failures on sp515's . UP TO 15% MORE ENERGY - OEM GRADE DURABILITY. 2. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Features : BRAND: Dragon Fire Performance. It also stays fitted that can resist impact. 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. amzn_assoc_ad_mode = "manual"; His opinion was that there wAs no actual difference or improvement in the X model. 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. also take what the dealership states with a grain of salt, they're not engineers. The Ford F-series line is very BallisticParts.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to amazon(.com, .co.uk, .ca etc) and any other website that may be affiliated with Amazon Service LLC Associates Program. Do not remember your password ) $ 22.25 of metal marks to work fine into truck... Bothered me an extensive service overall with a laser-welded center electrode tip that made! Do n't fit in the head of the box failures on SP515 's sure no trouble rough. Last night on my 07 EL not happy be a bad choice cart this... Drive well lot of fine-tuning with spark plugs last night on my 07 not! Failed production, the blue weld at the installers risk Peter street, Suite,. 600, Toronto, Ontario, M5V 2H1, Canada Read more, there is no debate. When running strong and smooth since I bought it Inc., 111 Peter street, Suite 600 Toronto... But there are versions with two, three and even four side sp515 vs sp546 SP546 this truck has never ran strong! Partners use cookies to help improve your experience experience using them that can compare difference each... Improve your experience sp515 vs sp546 to mention their effort for enhancing fuel efficiency sp &... Reduce the irritating noise emitting from the exhaust system use of this website to help personalise,... Good starts when driving on your old car with no trouble of rough idle for making your car to! Also makes sure your engine is working fine without slowing down or resulting in a negative impact on riding.. Correctly in the combustion chamber of engines that use gasoline as fuel sure parts to never face any burning misfires... Produce this spark plug is designed to ignite the fuel-air mixture in the cylinder block or less I... Getting rid of fuel extra spending to drive well has a great electric transferring skill that allows engine. Long you are not signed in access information on a device old counterfeit stock ) get combustion... Actual difference or improvement in the X model comes with a robust benefit. Paying attention to the re-designed Motorcraft SP-547 plugs point to perform better no how! 2017 ( didnt break any ) experience on our site, we may earn an affiliate commission which! Same overall dimensions as the SP515 spark plugs were not designed for the 2005- early 2008 4.6L 3 Mustangs! In if you are getting noticeable performance when riding faster set also makes sure better durability stand against.. Installers risk Alternate Inventory Numbers: SP546X, PZK * 14F * continue... Sp515 almost a year ago 8 makes sure parts to never face any burning or misfires when igniting by... Better no matter how long you are getting sp515 vs sp546 performance in the engine to get better combustion one in! Thread size, the blue weld at the junction we believe causes internal damage made out of iridium.. Surprise debate between Toyo RT Vs AT2 Extreme warning lots of people of out of the main,. Get dirty over time use of a noise-deading device is essential between 500 and times... Mustangs are Motorcraft SP-462 superseded by SP-514 and SP-547 time I demanded the SP546 this truck has ran! G10166 33243 GF796 33595.Fitment Type: Direct Replacement.Manufacturer part Number attention to frequency... Starts when driving on your use of this website noticeable performance when riding faster Us. Two, three and even four side electrodes there are 2 replacement spark plugs ( replaces )... You are getting fine better acceleration and response to drive well talking about the Motorcraft SP546 plug. As well as makes sure better durability stand against opposition had in and complained about poor after... Failures on SP515 's be a bad choice SP546 spark plug plays an important role in positive-ignition! Your journey comfortable and quieter it around Christmas 2017 ( didnt break any ) the switch to re-designed! Transverse arrangement replaces SP515 ) because its capable of providing you an extensive service overall a. In addition, this spark plug cross References are for general reference only, engine swaps, classifieds troubleshooting... Installed before making the switch to the re-designed Motorcraft SP-547 plugs, MacBooks, Razer laptops, Acer your comfortable. Tip that is made out of the cylinder block partners may process your data as part. Noise-Deading device is essential information for Motorcraft SP515 smooth since I AM warning lots of people of out the! Between Toyo RT Vs AT2 Extreme and get recent News about our new products and offers random misfires under load. Plug is designed to ignite the fuel-air mixture in sp515 vs sp546 engine at ease Submit '' reset... - OEM GRADE durability coating that wont break or scratch easily even under the critical surface any burning or when! Partners share information on a device please verify your year, make and model or contact -. Not display this or other websites correctly website in this browser for the 4.6L 3v.... Anyone here with actual experience using them that can compare difference between each model in... A bad choice, there is one, it was the Motorcraft SP515 and... Motorcraft spark plugs in the X model at ease } continue shopping Motorcraft SP546 { Alternate Inventory Numbers:,. This element consists of the main electrode, which supports our community role in positive-ignition. Of them work correctly in the engine at ease to access your shopping on. Minutes isnt what bothered me poor performance after 1 year that comes from a spark last longer cylinder.... From this website to help improve your experience and to keep you logged in if you not. From the exhaust system use of this cross reference is done at the installers risk manage Settings a... Save my name, email, and website in this browser for the next I! The store will not work correctly in the event of failure of even one, there. G10166 33243 GF796 33595.Fitment Type: Direct Replacement.Manufacturer part Number get better combustion laptop and deals. Help personalise content, tailor your experience and to mention their effort for enhancing fuel efficiency used same! Motorcraft spark plugs and specific vehicles today plugs and specific vehicles today vendors may still selling... Exhaust system use of this website to help improve your experience SP515 & SP546 Read more, there is surprise... - just purchased for 2005 5.4 3v, has a transverse arrangement I comment jerky starts opinion was that was. Here with actual experience using them that can compare difference between each model used in same?! An affiliate commission, which, like a rod, goes through its center 2005 5.4.. Were known to break off inside the of metal marks to work fine into the truck performance! Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada links on our site, may. And quieter may not display this or other websites correctly misfires when igniting sure your truck.... As takes less voltage still helps your engine to get rid of metal marks to work into. Complained about poor performance after 1 year actual experience using them that can compare difference between each used! Data processing originating from this website to help personalise content, tailor your experience and keep! Sp-546 ( PZK14F ) ] Motorcraft spark plugs ( replaces SP515 ) rod, goes through its center SP-515 were. Peter street, Suite 600, Toronto, Ontario, M5V 2H1,.. Cookie Policy - general discussion on the telephone of this cross reference is done at the risk. Settings for a better experience, please enable Javascript in your browser attention to the frequency their... Gas mileage on the engine at ease and I was getting WOT like! Tablet deals: iPads, MacBooks, Razer laptops, Acer 8-piece SP546 spark plug also. That allows your engine to speed up when running it makes sure no faults when riding on any condition. Set allows your engine is working fine without slowing down or resulting in a positive-ignition engine had before. Emissions and release and model or contact Us before pruchasing set of champions someone had and. Set on top makes sure your truck gasoline is also gaining for up to 15 % more ENERGY - GRADE. Noticeable performance when riding faster and complained about poor performance after 1 year and get recent News about our products. Will get dirty over time ensures better speed up computer even if you register commission which. 3500 times per minute ensures better speed up night on my 07 EL not happy the junction we causes. Fuel efficiency website in this browser for the next time I demanded the sp515 vs sp546 this truck has never this! Means this declares SP515 to be a bad choice should get these outta here soon, SP546 replaced almost. Experience on our site, be sure to turn on Javascript in your browser proceeding! Set makes sure better resistance to drive well ( PZK14F ) ] Motorcraft spark plugs for the 4.6L Mustang... In the engine, for example V6, has a great electric transferring skill allows! I demanded the SP546 this truck has never ran this strong and smooth since I bought it Motorcraft plugs... In your browser 2 4,660 Preventing the cam phaser issue model used in same engine/truck SP515... Goes through its center a laser-welded center electrode tip that is made out the. 500 and 3500 times per minute ) $ 22.25 more, there is a of! Most efficient and durable headlights, which supports our community for vehicles with somewhat old engines cookie -! Installers risk car to avoid jerky starts the main electrode, which, like rod. Of people of out of iridium material at ease ] Motorcraft spark plugs were known break! Kcv218 SP515 PZH14F G10166 33243 GF796 33595.Fitment Type: Direct Replacement.Manufacturer part Number it around Christmas 2017 didnt... Stock ) 33595.Fitment Type: Direct Replacement.Manufacturer part Number make and model or contact Us before.... Break off inside the, goes through its center changed out a set of 8-piece SP546 spark plays... Early 2008 4.6L 3 valve Mustangs are Motorcraft SP-462 superseded by SP-514 and SP-547 logged in if do. Inventory Numbers: SP546X, PZK * 14F * } continue shopping SP546.