AN4027-1, 18MM. These are the AN4027-1 18mm copper spark plug gaskets.
20% Discount on Box of 100
Made of solid copper to current aircraft standards. Available in 14 MM and 18 MM sizes.
great value. The best price we could find.
Good price and work as expected.
was just what I needed
Heres the deal folks...All aircraft engine manufacturers specify using a NEW gaskets when removing and replacing aviation spark plugs. If you run a Repair Station or you are an A.I. you best be using NEW gaskets (and billed on your work orders) to avoid potential liability issues. These generic branded M-674 gaskets are the correct Rockwell hardness and dimensions. We use thousands of gaskets per year and these Aircraft Spruce gaskets are now our #1 choice.
Look just like OEM. More convenient than buying a box of 100.
circular and flat, good stuff
I just watched a video on youtube of a fellow taking old gaskets and heating them with a blow torch to anneal them, so he could reuse them....even though they were crushed and had a raised lip. I like the idea of reusing things, but when a brand new copper gasket costs about 36 cents, that seems pretty stupid. Buy a handful of gaskets and let them sit in your tool box, and use them anytime you take a plug out... Good product, very low price.
excellent on time shipping
Yes, these copper spark plug gaskets will work on Tempest or Champion plugs.
.71" ID or just over 18mm OD. 0.08 thick.
Yes, that would be correct.
Yes, the IO-360 will use 18mm plugs.