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.
They are very shiny, I like them a lot.
work as advertised
It took a little longer than I thought but good service, after a call with a courteous person that made things happen. No question I will be back..
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.