Earls Billet Fill Cap #166020ERL

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  • $46.85
  • Regular price $57.84
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Aluminum Bolt Bung
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 feature a bright black anodize for great looks and corrosion protection. Each cap features a laser etched Earl's logo so you know it is quality product. Earl's Billet Fill Cap kits allow you to put a fill cap or inspection plug anywhere it is needed. Kit #166020ERL is a bolt on with an O-ring seal and features a 2.17" 4-bolt style flange with stainless hardware. The kits has an easy to grip screw on cap with O-ring seal and a 1.38" diameter opening.


  • Kit allows for installation of fill cap or inspection plug anywhere needed
  • 2.17'' 4 bolt style flange
  • Bolt on fill cap with an o-ring seal
  • Easy to grip screw on cap
  • Stainless steel hardware included
  • Thread 1-1/2"-12
Brand Earls
Emission Code 5
Height 1.4"
Product Type Accessory
Thread 1-1/2"-12
Warning California Proposition 65