Mr43lts to e3. Feb 15, 2014 · Changed the plugs which came in the boat from the original owner AC Delco MR43LTS around the 230 hour mark. Please use it for reference only. 40 E3. Huge cross reference with up to 112 different brands. I believe the only difference is the "M" is for marine and the plug is made from alloy steel as opposed to carbon steel. The distributor cap is J1171 certified and the copper contacts are a huge plus. That was your misfire? Nov 30, 2010 · C3 Tech/Performance - Marine Spark Plugs - I recently bought a new set of plugs for my 355 HP ZZ4 engine. CR43TS. I'd personally say TR5, for the following reasons. All times are GMT -7. Went to parts store and Replacement spark plugs for NGK MR43LTS. 92 ACDelco Professional Rapidfire Spark Plug (Pack of 1) 3 Fits select: 1998-2003 CHEVROLET S TRUCK, 2000-2002 CHEVROLET CAVALIER 50 replacement spark plugs found for ACDelco MR43T. Yet after I got the plugs I was searching some more and found in the owners manual I need AC Delco 41-932 replaced by 41-993 gapped at . On the airfilterbox it tells me to use the AC-MR43LTS Sparkplug and when i cross-reference it to NGK it want me to use NGK BPR6EFS. Their high-quality copper core and outstanding suppression characteristics deliver reliable performance. manual says use an ac mr43t. They can maintain stable operating temperatures under varying loads. Your Choice of Quality. 7 Mercruiser and Volvo Penta Carbureted engines Does not fit fuel injected engines Order two for a total of 8 spark plugs Apr 13, 2009 · "The recommended service replacement spark plugs for these engines are non-platinum AC MR43LTS (P/N 33-884019) or NGK BPR6EFS (P/N 33-816336). looks like the 43lts is a longer plug. 79$ ACDelco R43LTS replacement spark plugs Accel 0514 Autolite 103 Beck Arnley 176-5180 Champion 401 Buy from Amazon Champion 401CC Champion RS12YC Buy from Amazon Champion RS12YC013 Champion RS14YC Buy from Amazon Champion stk 408 Denso 5032 Buy from Amazon Denso 5326 Buy from Amazon Denso May 19, 2025 · The MR43LTS spark plug, is a precision-engineered component designed for optimal engine performance. DECODER LES REFERENCES. . was going to change out my spark plugs and found different ones installed than what manual recommends. I started to replace them and when I pulled the first one out, the existing plug was a half-inch shorter than the Dec 15, 2015 · Buy New AC Delco OEM Part# 862029 MR43LTS @8 Compatible With Mercury Mercruiser Quicksilver: Spark Plugs - Amazon. I called Merc and they said that was correct and the current Mar 29, 2007 · Welcome to TheMalibuCrew! As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account. I want the corrosion resistance. The time now is 12:03 PM. Sep 11, 2025 · With a copper core and nickel alloy electrode, it ensures consistent spark, effective heat dissipation, and resistance to corrosion. 0L mx plus 275 hp. NGK has been developing spark plug technology since the 1930s and manufacture plugs for every type of automotive engine, as well as for motorcycles, marine, horticultural, plant and many other applications. How weird? Remember this. Not only did it come with everything I needed for installation, but the quality of the products is top-notch. 5 to 8. NGK Part No. my engine is an indmar (gen motors) 5. Would/could you also re-gap the MR43LTS to 0. I read that the 41-932 is now replaced by Jun 21, 2024 · Comprehensive Spark Plug Chart for cross-referencing NGK spark plugs with Champion, Autolite, AC Delco, and Bosch equivalents. Spark Plug AC Delco GM V6 & V8 Long Reach 1 replacement spark plug found for Champion R43LTS. Shop Now at the Guaranteed Lowest Price! Jun 26, 2018 · I thought I'd replace the spark plugs in my 1997 5. Always check compatibility with your engine before replacing. The Iridium plugs are used in the MPI engines. Full Manufacturer Warranty. The plugs I pulled were ACDelco 41-101, Iridium plugs. Sep 25, 2025 · AC Delco MR43LTS to NGK: The NGK TR5 is a direct replacement for the AC Delco MR43LTS, offering similar specifications and performance. I am also curious about the R44LTS. Plus, the MR43LTS Spark Plug Ac Delco. Stick with the AC or NGK spark plugs. These spark plugs are essential components for the ignition system, ensuring proper combustion and engine performance. Do you have any idea how frustrating it is to find that out? Car runs like ****, almost always has. Apr 22, 2007 · I removed the R45TS plugs from my ZZ4. The spark plug plays a critical role in igniting the air Part Number: MR43LTS Cross Reference Spark Plug Referenced From CHAMPION Catalogue Possible replacement spark plugs for AC - MR43LTS We would like to show you a description here but the site won’t allow us. I will Feb 12, 2008 · Buy ACDelco Gold MR43LTS (19355201) Marine Spark Plug: Spark Plugs - Amazon. Refer to recommendation section for specific engine applications. Aug 25, 2025 · The ACDelco MR43LTS Copper Spark Plug is a 4-pack designed for use in Mercury Mercruiser Quicksilver vehicles. Mar 30, 2019 · My 3. To accurately quote you the correct plugs numbers, your engine serial number would be needed as numbers have changed over the years. ACDelco MR43LTX: The Reliable Throttle Actuator for Your Mercury Mercruiser The ACDelco MR43LTX Throttle Actuator (862029) is a precision-engineered component designed specifically for Mercury Mercruiser engines, ensuring optimal performance and reliability. com FREE DELIVERY possible on eligible purchases Apr 2, 2016 · The TR5 is the equivalent to the MR43LTS. I am not sure why the heat range difference but that is ok. From all the searching of should have the double platinum or DP for short Volvo part number 3861326 Mercury part number 33-863622001 or NGK PZTR5A-15 or AC Delco 41-983 Or Denzo TJ14R-P15 And gapped to. 060. So now I'm concerned about damaging the piston heads with the longer MR43LTS. NOTE: Cross references are provided as a guide only. The Manual calls for an AC-MR43LTS spark plug. It is missing the LIt should read MR43LTS from AC-Delco. 7 EFI since they have 556 hours on them. Fast Online Catalog. Mar 25, 2012 · General Q & A - MR43LTS spark plugs - I've got vortec SBC and I was told that the delco MR43LTS is the best plug for these heads. Get deals on automotive parts, truck parts and more. ACDelco Gold MR43LTS (19355201) Marine Spark Plug 3. Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. 46. Crossover a variety of brands with others. 060 . But when i start to change the sparkplug i see that the Save on ACDelco Conventional Nickel Tip Copper Core Marine Spark Plug: Reliable Performance MR43LTS at Advance Auto Parts. Mar 29, 2008 · I've been running the wrong spark plug in my Nova with vortecs for over 6 years. This vehicle-specific spark plug comes pre-gapped to your engine's exact specifications, ensuring proper ignition and consistent operation. I looked up the part number on Mercs website when ordering various parts. We cruise, wake and May 14, 2012 · Re: Which spark plugs to use? Never, Never,Never,Never,Never,Never,Never, ever use Champion spark plugs in a marine engine, unless you like to spend time looking for misses, and having poor running problems all the time. The plugs sent to me were ACDelco#MR43LTS. Sep 17, 2015 · Here's another history of my boat. " Evidentally, the originals were shipped with Platinum plugs and the gaps are far different. M stands for marine version, plated. 0, 5. (*6) Purchase via DAIHATSU. It's just a misprint from newThey had a few misprints like that back then. Any thoughts? ACDELCO Ignition Parts and More for Your Vehicle at Reliably Low Prices. INTER CHANGE COMPÉTION À NGK et de matériaux. ) varies according to manufacturer. ACDelco is a trusted brand known for producing high-quality May 29, 2013 · I was recommended the AC Delco MR43LTS Copper plug as an alternative to the IR plugs (expensive) in our 2010 LSV with Assault 325 (non catalytic). A reliable replacement for part numbers 3851857, 3854399, 3856759, and 33-862029, this spark plug is engineered for durability and optimal function. BOUGIE REFERENCES EQUIVALENTES D'UNE MARQUE à L'AUTRE. All plugs were very similar in appearance to the NGK Normal Condition image, checked the gaps & found the range outlined above. This throttle actuator, manufactured by ACDelco - a trusted brand recognized for its high-quality automotive parts - is an essential Point to Zoom Pre-Set Gap: 0. 0 alpha one lx calls for Ac mr43ts plugs I can't find anything that cross references the mr43ts just the mr43t. Ensure optimal performance in your marine engine with ACDelco MR43LTS spark plugs! It has mr43lts plugs in it. Save on ACDelco Conventional Nickel Tip Copper Core Marine Spark Plug: Reliable Performance MR43LTS at Advance Auto Parts. Thanks. The manual ca AC Delco Long Reach Vortec Spark Plug Sold individually Replaces Crusader R030008A Replaces NGK TR5 Champion RS9YC E3 Spark Plugs improve fuel efficiency and performance with their DiamondFIRE technology, while NGK is known for its long-lasting reliability and consistent performance. from what I can find they fit the small block. This document is a 3 page spark plug cross reference chart for small engines. RS12YC is a equivalent part number to both numbers and AC Delco Spark Plug - MR43LTS Used on Vortec 3. yo troops. com CAUTION * Use IXU22I and VXU22I with 3SZ-VE engine. 045" Jan 26, 2022 · The plug required on the spec. Aug 12, 2022 · I would recommend the AC 41-101 spark plug gapped at 0. The MR43LTS can be used, but they need to be gapped at 0. I do know the M in the part number is for marine application. Les bougies provenant de différentes compagnies n'affichent pas nécessairement le. même degré thermique. Jun 20, 2002 · General Q & A - Correct spark plug gap? - I am replacing the plugs on my 99 7. I used Borg Warner Gold caps & rotors because they worked better/lasted longer than some of the others and came with a lifetime warranty. One is the TR5 and one is the BPR6EFS. Dec 9, 2022 · A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). This is the type of spark plug you will need for your ZZ small-block. Does any one know what a replacement is or where I can get the mr43ts? Sep 9, 2013 · Hi there, All three plug numbers work really well and are recommended by Mercruiser. sheet for the heads is MR43LTS You might want to check these plugs out and compare them. Feb 12, 2012 · Re: spark plugs (confused) The AC MR43LTS plugs work fine for the carbed engines like you have. (2) Plug specifications (design, materials, etc. If you were to order the spark plugs directly from Volvo, you would get Champion plugs (Not iridium), which is the worst thing you could do to a marine engine. When I went to NAPA they sold me an AC Delco #8 Platinum plug which they said was equivalent. ABTOKOHNHBECT A17AB-10 MOTORCRAFTAS52C FOR V-TWIN ENGINES NGK IRIDIUM IX® FOR V-TWIN ENGINES Used at the tip of the center electrode of the spark plug, Iridium is a denser metal alloy, 6x to that of platinum; this provides increased service life, improved ignitability and throttle response when compared to a factory nickel plug. Customers can use this chart to find equivalent spark plug options if their original plug is unavailable. Is this true? What does Platinum do for a plug? MR43LTS AC SPARK PLUGs are daily replacement plugs for jet boats, inboards, outboards, and personal watercraft that are born for reliability and efficient performance. The Plugs AC Delco Spark Plugs - MR43LTS (Set of 8) - Bulk Packaging AC Delco No reviews yet Write a Review SKU: ACD-MR43LTS-8B $23. Distributed across nation Find the E3 Spark Plugs in multiple stores Free Shipping Free US shipping on all orders of $35 37 replacement spark plugs found for ACDelco MR43LTS. 92 Shipping: Calculated at Checkout $23. Jul 12, 2018 · The cover info is incorrect to show your spark plugs to be MR43TS. 7L, 6. MR43LTS AC Delco Spark Plug Manufacturer: AC Delco Part Number: MR43LTS Condition: New Quantity: 1 Replaces: Champion RS12YC, Champion RS12YC013, NGK 1183, NGK 3623, NGK 92406, NGK BPR6EFS, NGK TR5, NGK V-line-7, NGK stk 2238, Mercury 33-862029 Cross References: ACD MR43LTS4, 42-4898, 4763-1401, 47631401 (verify fitment using your model or We would like to show you a description here but the site won’t allow us. My question is the plugs I removed have a short read and bevelled seal. For example, the R45TS spark plug shown is: Jun 3, 2018 · AC Delco Rapid Fire Spark Plugs R44LTS AC Delco Rapid Fire Spark Plugs MR43LTS AC Delco RapidFire No 3 Sparkplug ACCEL P526S U-Groove “SHORTY” Double Platinum (approximately 3/16″ shorter then R44LTS) ACCEL 516 Autolite 26 Autolite 104 Champion RS12YC Bosch HR10B Bosch HR10BX Bosch HR9DC A Guide to Vortec vs OE Small Block Chevy Heads Get the Best Performance with ACDelco SPARK PLUG MR43LTS parts at JEGS. Mar 23, 2012 · I've got my manifolds off so I decided to change spark plugs. It lists spark plug part numbers and equivalents for many common brands including Autolite, Champion, NGK, Bosch, Denso, AC Delco, and MotoCraft. When it comes to optimizing engine performance, selecting the right spark plug is one of the most important aspects of vehicle maintenance. Original plugs would be the MR43LTS by ac Delco. The GM documentation that I have for this engine calls for R42LTS AC/Delco plugs but when I pulled the old ones out there were type AC MR43LTS. Slows the rust down while in use on the water. 181 replacement spark plugs found for Autolite 103. 060", which is the most current replacement for the 41-932. (*3) MITSUBISHI lean burn excluded. 185 replacement spark plugs found for NGK BPR6EFS. Buy GM Genuine Parts Gold Marine Spark Plug - AC MR43LTS online from NAPA Auto Parts Stores. 40 CR43TSM CR44NS CR44TS. 045. I am trying to cross reference to NGK but I am getting 2 different models. Cross Reference any spark plug number with this complete spark plug reference chart. They are NGK's, what is the correct gap? the only mod I have done is replaced the stock flame arrestor with a K&N. AC DELCO to E3 AC DELCO E3AC DELCO ACDelco MR43LTS Marine Spark Plug. (1) This comparison chart does not guarantee capability with any vehicle. Crafted by AC Delco, a trusted name in automotive components, the MR43LTS is a top-quality ignition Dec 25, 2015 · Searching the site I believe I need AC Delco MR43LTS plugs gapped at . Jun 9, 2006 · Trying to find the correct spark plugs for my engine. 2L. Mar 29, 2002 · General Boating Discussion - Can MR-43-LTS spark plugs be used in - Mark 4 big block heads. Anyway, I have to run shorty style plugs for header clearance and I really need somebody to clarify what spark The AC Delco Spark Plug Decoder Table Prefix and suffix letters are used to identify a specific type plus the numbers relate to thread size and heat range. 3 L V6 DISTRIBUTOR CAP ROTOR SPARK PLUG WIRES KIT SET WITH MR43LTS PLUGS and I have to say, I am extremely impressed. 0L, 5. 0 engine. I can't find the old MR-43-TS. The Mercruiser parts manual stated AC Delco MR43T so I bought eight at the parts store. . DIY-Easy. Buy online, pick up in-store in 30 minutes. ones i yanked out are ac mr43lts. 3L, 5. I changed them because I was having trouble starting the engine, after that, It results that it was nothing to do with the spark plugs but I leave it anyways. Replaces: Crusader R030008A NGK TR5 Champion RS9YC ACDelco Spark Plug Kit - MR43LTSIf you cannot find what you're looking for, please don't hesitate to reach out to us via our ' ' form, we may be able to help! Jul 24, 2015 · These engines used a stock AC plug with part number MR43LTS, but let’s get into an actual description of this spark plug so you can then choose from any number of different brands of plugs–in case you have a favorite. Iridium is perfect for increased dependability on long rides. Sallee says MR43LTS come standard and FR5LS or Rapid Fire #5s can be used. 0L, 4. The LTS has about a 3/8" longer thread. 045" and will likely need to be replaced more often. (*8) Purchase via Mazda. 3, 5. Long reach. any suggestions?? 2 dealers i spoke with say use the 43t but why would ACDelco part MR43LTS Priced and sold individually See spark plug reference chart for correct usage Spark Plug MR43LTS - The MR43LTS is the long reach Marine Spark Plug by AC Delco (stainless steel body) used on GM Vortec 5. Mar 30, 2008 · I have a 2007 Glastron with a 3. 2L carbureted engines. Have a zz4 crate engine and it the parts sheet says it takes MR43LTS plugs. I don't think they are orignal. 060? Buy 8 Pack of Spark Plugs Kit Specialty Marine Spark Plugs ACDelco MR43LTS 19355201 at Walmart. ACDelco Specialty Marine Spark Plugs are everyday replacement plugs designed for reliability and efficient performance in jet boats, inboards, outboards, and personal watercraft. 37 replacement spark plugs found for ACDelco MR43LTS. 4l mpi. AC-DELCO Spark Plug - ACD MR43LTS: Available online or at your local NAPA Auto Parts store. Search this spark plug cross reference with more than 90000 models. E3. Plug Maker Other Part No. Anyway, my question is, which NGK plus to use? I found in some threads people say NGK BRP6EFS, and some say NGK TR5. These are not the plugs specified on the Sallee Chevrolet site. Dec 29, 2014 · Sparkplug cross reference between Autolite Racing, AC Delco, Champion and NGK. The chart provides over 500 listings of spark plug part number Feb 8, 2022 · About this item Set of 4 AC Delco MR43LTS spark plugs Fits 1997 and newer GM 4. It's free and it's easy, so don't hesitate to join the TheMalibuCrew Family today! Apr 7, 2016 · I prefer the copper plugs too but is the MR43LTS the correct replacement for 41-101? Do we know for sure longevity is the only reason Volvo call for Iridium in these engines? Enhance your marine engine's performance with the AC Delco MR43LTS spark plug, designed to fit a range of Mercruiser models from 2. Anyone know if these are the same, or which one is the correct one? Mar 12, 2025 · Find many great new & used options and get the best deals for ACDelco MR43LTS Specialty Marine Spark Plug - 1 Pack at the best online prices at eBay! Free shipping for many products! Find many great new & used options and get the best deals for MR43LTS AC Delco spark plug Mercury # 33-862029 at the best online prices at eBay! Free shipping for many products! Save on ACDelco Conventional Nickel Tip Copper Core Marine Spark Plug: Reliable Performance MR43LTS at Advance Auto Parts. (3) Choose your plug model by referring to the vehicle model Also thinking maybe spark plugs and/or wires so I went and picked up AC Delco MR43LTS as per the Indmar manual, went to put them in and the boat has MR43T plugs in it? these plugs have a much shorter reach. Can these be used or not. Veuillez référer à la section de recommandation pour les applications précises. com FREE DELIVERY possible on eligible purchases 60 replacement spark plugs found for NGK 92406. Easier to find. ACDELCO SPARK PLUG MR43LTS. Jun 20, 2012 · Hi everybody! I was about to change the sparkplug on my Rinker Captiva 232 with Mercruiser 5. See the seller's listing for full details. Compatible with Mercury Marine/Mercruiser applications (OEM part number 862029) and equivalent to LKR6E specifications, this spark plug is essential for Buy GM Genuine Parts Gold Marine Spark Plug - AC MR43LTS online from NAPA Auto Parts Stores. A good alternative would be NGK BPR6EFS or should be Merc part number 33-816336Q if you can't locate an original AC MR43LTS plug. 0 4cyl Mercruiser GM engine. Apr 27, 2011 · Hey guys, I did a search, but it's kind of hard to find the NGK threads, as NGK is under the 4 character search limit. Hey there, it’s me, Alex! I recently purchased the Mercruiser Thunderbolt 4. Specifically made for these models, the spark plugs provide reliable and efficient spark generation. Two weeks ago I changed the spark plugs to the recommended in the manual AC-41993. gwp 9kndelg q9usj u3sfij 4trcwzp2 prhie 9f ywfsepi tde nxn1wyv