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! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley 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 Holley Equipped logo so you know it is quality product.

Holley Billet Fill Cap kits allow you to put a fill cap or inspection plug anywhere it is needed. Kit #166019ERL utilizes a steel weld bung. All kits feature an easy to grip screw on cap with O-ring seal and a 1.38" diameter opening.

Features:

  • Kit allows for installation of a fill cap or inspection plug anywhere needed
  • Steel weld bung
  • Easy to grip screw on cap with o-ring
  • 1.950" Overall Diameter of Weld Bung
  • 1.400" Inside Diameter of Weld Bung
  • 1.810" Diameter at Step of Weld Bung
  • 0.675" Overall Height of Weld Bung
  • 0.570" Height at Step of Weld Bung
  • Thread 1-1/2"-12

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! Holley has created a full line of Billet Fuel Cell Caps and Billet Fill Caps. Holley 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 Holley Equipped logo so you know it is quality product.

Holley Billet Fill Cap kits allow you to put a fill cap or inspection plug anywhere it is needed. Kit #166019ERL utilizes a steel weld bung. All kits feature an easy to grip screw on cap with O-ring seal and a 1.38" diameter opening.

Features:

  • Kit allows for installation of a fill cap or inspection plug anywhere needed
  • Steel weld bung
  • Easy to grip screw on cap with o-ring
  • 1.950" Overall Diameter of Weld Bung
  • 1.400" Inside Diameter of Weld Bung
  • 1.810" Diameter at Step of Weld Bung
  • 0.675" Overall Height of Weld Bung
  • 0.570" Height at Step of Weld Bung
  • Thread 1-1/2"-12