Billet Aluminum Fuel Cell & Fill Caps

166017 ERL

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 Earls-HAre you looking for an alternative to your stock fuel cell cap or maybe you need a fill cap for that custom oil tank or valve cover you are building? Well, look no further! Earl’s has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Earl’s caps are CNC machined from 6061-T6 billet aluminum and they are bright black anodized for great looks and corrosion protection. And, each cap features a laser etched Earl’s logo so you know quality is built in!

Earl’s Billet Fuel Cell Caps are available in two different styles. 166017ERL features a 5.343” 12-bolt flange 166016ERL features a 4.438” 6-bolt flange. Both have a large 3” opening with an easy to grip screw on cap that utilizes an O-ring seal. Stainless steel hardware is included for an easy installation.

Earl’s Billet Fill Cap kits allow you to put a fill cap or inspection plug anywhere it is needed. Available in three styles: 166020ERL is a bolt on with an O-ring seal 166018ERL features an aluminum weld bung 166019ERL utilizes a steel weld bung. The bolt on kit has a 2.17” 4-bolt style flange with stainless hardware.

All three kits feature an easy to grip screw on cap with O-ring seal and a 1.38” diameter opening.

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