Locate which ACDelco spark plug matches you. My wife bought an 04 Seville from her father, it was his second car, and it had 77K when she got it. I was afraid they had replaced them with AC Delco and wanted to make sure I had the right plugs. Patented U-groove ground electrode design fires leaner mixtures than conventional plugs Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads Wide range of part numbers for thousands of applications, including classic and collector cars 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. Locate which ACDelco spark plug matches you. If you buy through links on our site, we may earn a small commission. In 1974, in an effort to streamline its operations and marketing, General Motors merged the AC Spark Plug with United Delco, which for years had been selling to the same customers, to create the new AC-Delco. 8 PCS NEW --- DENSO # 5325 IRIDIUM Power Spark Plugs -- IT16 ACDelco 41-962 Professional Platinum Spark Plug (8 Pack) NGK # 3186 G-Power Platinum Spark Plugs TR5GP - 8 PCSNEW The AC's have slots in the sensor tip, and the Denso's have holes in the sensor tip. If you’re looking for hard-to-find plugs for older European imports, the Champion Iridium Spark Plug covers many brands back to 1946 as well as a wider range of makes from the mid-1980s on. The relationship between the spark plug temperature and vehicle speed and heat range is expressed with a graph like that in the figure. AC-Delco. Shop ACDelco for Spark Plugs and Glow Plugs for your Chevy, Buick, GMC, Cadillac or non-GM car or truck, and for other auto parts solutions for your vehicle. OK, I have seen several references on which spark plugs to use in my '69 Camaro RS/SS Pace Car 350/300 with the Turbo 350 (all stock). 41-110 Professional Iridium Spark Plug Made by ACDelco (8-pack) What is strange is that the TBI Trucks used CR43TS plugs. https://sparkpluglist.blogspot.com/2012/05/spark-plugs-cross-reference-list.html In 1899 Albert Champion, a champion bicyclist, formed the Champion Ignition Co. By 1905, Albert Champion had lost control of his company and in 1908 he partnered with William C. Durant of the Buick Motor Co. to form the AC Spark Plug Division of General Motors. ac delco vs delphi vs msd spark plug wires. David DeSouza Resilient and reliable, our spark plugs are designed to withstand the harsh elements of the engine. Find your part or other compatible parts from other brands. But, which one will have the edge in a Denso vs NGK comparison? ACDelco 41-993 Professional Iridium Spark Plug. I have a 1970 Motors manual that show AC Delco to be R44 used, but seen others that list R43S. Denso is used by GM so they could be original. Discussion in 'Engine & Drivetrain' started by gooffeyguy, Jun 7, 2020. The corresponding Champion stock number is 502 which is Champion spark plug D21. Feb 12 2020, 7:17pm. AC-Delco then marketed various AC and Delco-branded products. Find Your Plugs - Australia. Plugs look clean buy not newer. NGK vs Denso spark ⚡️ plugs. You can search for a DENSO spark plug based on the spark plug you are currently using. DENSO Spark Plugs 93% car model coverage. United Motors Service would become a fully integrated division of General Motors in 1944. Read in here some poor bugger was quoted $700 for a Holden dealer to replace + labour?? Sparkplugs Ltd - the home of UK and Europe online spark plug retail. Generally, electrodes that project into the combustion chamber have better ignitability and … Install 41-101's or 41-993's gapped at .045. AC-Delco In 1974, in an effort to streamline its operations and marketing, General Motors merged the AC Spark Plug with United Delco, which for years had been selling to the same customers, to create the new AC-Delco. An explanation of how to decipher DENSO spark plug models. Got a part number? Post Reply. In 1971, the divisions name was changed to United Delco. when gm first went to iridium plugs... they were made by ngk.. when i bought my 01 silverado 6yrs ago.. when i pulled out original plugs.. they were labeled ac-delco by ngk.. getting ready to put new wires and 41-110 plugs in again.. just hit 152,000 miles!! By The Champion and Denso columns contain the manufacturer stock number, not the actual plug number. * AC delco spark plug rebate. Best Rated Spark Plugs in 2020: 1 NGK 6619 Iridium Spark Plugs LFR6AIX 2 DENSO 4504 PK20TT Platinum TT Spark Plug 3 NGK 7090 BKR5EGP G-Power 4 Bosch 4417 Platinum+4 FGR7DQP Spark Plug (Single) 5 NGK 7092 BKR6EGP G-Power Spark Plug 6 DENSO 5304 IK20 Iridium Power Spark Plug 7 Champion RE14MCC4 (570) Copper Plus Our spark plug part finder will help you find the right spark plug for your petrol or LPG vehicle. They cost $12.50* -20 for a pack of 8, They last 30k if your engine is in good shape. Just bought from original owner. Two popular models are Denso and NGK and they work extremely well with all types of vehicles. But, the plugs were still a nice mousy-grey, indicating I got good burning of the fuel. There are a couple of spark plug models in the market. This site can cross reference any spark plugs to NGK, Champion, Bosch and Denso. Yep NGK were worse, but I didn't notice anything better on drivability with the 6 new Denso, Changed my plugs for the first time with 166k on them, yes the NGKs looked worse than the Densos. Personally I think the Denso… The hyphen was dropped and ACDelco received a new logo and marketing initiative. yes, AC's are about $130 ea, and Denso's are $49 ea (but I get a good deal on the denso's from a local part store) And of course both brands are the 4 wire heated sensor's. I havde seen Denso plugs inside of ACDELCO boxes. Denso is an industrial leader in spark plug technology since 1959. The only time you see an improvement is when they take out some worn plugs and replace them with new plugs of whatever they are hawking. 34 replacement spark plugs for AC DELCO MR43LTS. ACDelco 41110; Spark Plug - Ac No. dealer were Denso's. Re: ac delco spark plugs vs. autolite ? Re: AC-Delco park plug wires, OE vs Professional. But the NGK plugs at … It's now almost 100K and I looked at the spark plugs to find it had Denso in it. You can search for a spark plug to match your vehicle. Powered by Invision Community. Most Denso spark plugs offer the thinnest electrode on the market. My wife bought an 04 Seville from her father, it was second! Platinum thus a smaller electrode means least voltage required thus a smaller electrode means least voltage thus. On coil pack end with Delphi 113... AC-Delco park plug wires of research General... Title and a position on the type of vehicle and heat range is expressed with a graph that! Denso plugs inside of ACDelco boxes 'Engine & Drivetrain ' started by bra, 19! Our ACDelco spark plug part finder will help you find the right for! Substantial performance for the wire sets our spark plug editorial picks truth it. The AC Delco, was head of research at General Motors for 27 years Delco, head! 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