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.
This spark plug gasket is exceptionally round where it needs to be and flat in other places. It is also coppery.
The spark plug gaskets were really round and... coppery
They are very shiny, I like them a lot.
work as advertised
good fit, worked well.
excellent value! works well.
Brand new washers as expected. Very inexpensive and despite the old wives tales of just annealing old ones to save money brand new is the only way to go.
Yes, these copper spark plug gaskets will work on Tempest or Champion plugs.
.71" ID or just over 18mm OD. 0.08 thick.