I love NGK spark plugs, but I have to admit I was surprised it had a 18mm hex my old one was 5/8" and I have had 13/16 hex on the larger spark Plugs. I have used a lot of 3/4" sockets on lawn mower spark plugs which is also 19mm. I have 18mm sockets and the plug tightened nicely it was for a motorcycle and is working very well in my push mower. The price is so good that I don't know how he was able to pay for shipping (included free) and I used the top off an old plug, so it worked out well for me. shipping was quick and packaged well. I am very happy with this purchase on a hard to find 12mm threaded plug with a long reach of 19mm.
Verified purchase: Yes | Condition: New
Just bought them. They are still in the blister packs and will be until I get the opportunity to install them. Until then I do not have enough information to construct and opinion. Asking for reviews of stuff like this is silly and should not be given any credit at all.
Verified purchase: Yes | Condition: New
This part is manufactured under a specification for proper operation according to manufacturer
Verified purchase: Yes | Condition: New
product I needed for my four wheller was exact replacement for my 1993 honda four trac I only use exact replacement parts and this is what it was called for
Nice product
Verified purchase: Yes | Condition: New
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