Spark Plug AC DELCO, Sold in Multiples of 8, Pack of 8

I never leave reviews BUT since I was 5 miles out to see with the kids when these failed I will. After 6 Months of light use in a brand new engine these plugs came apart. i have been a ASE master tech for 35 years. Either these are counterfeit a/c delco or the Chinese who i understand make these now are garbage. there could have been a boat fire and dead kids involved. not cool guys.

I bought these and after checking (reading the add too fast) I found the did not fit my boat. They are MR43T I needed MR43LST because of time requirement I bought local but will revisit Amazon the next time I need plugs. Oh ya make sure you check gap on plugs.

I have to regap them to 035 for my mercruiser alpha one engine they were almost @ 40. Price qas on point.

Good part

Needed new plugs for 4.3 mercruiser and these are them

Always used ac delco plugs, never champion. I always had a fouling problem with any champion plug I bought, never with ac delco.

ACDelco comes through again !!!I trust only ACDelco on my GM trucks.

Product was not as described, there were only 4 in the box not 8