This Holley billet fuel cell cap is CNC machined from 6061-T6 billet aluminum with a bright black anodized finish for corrosion protection, and features a laser-etched Holley Equipped logo. It fits most JAZ-style 6-bolt fuel cells and works as an alternative to a stock fuel cell cap or a fill cap for a custom oil tank or valve cover build.
Specifications:
- Flange Diameter: 4.438"
- Bolt Pattern: 6-Bolt
- Opening Size: 3"
- Finish: Anodized Black
- Material: 6061-T6 Aluminum
- Hardware Included: Yes (Stainless Steel)
- Sub Category: Hardware, Fasteners and Fittings
- Part Number: 241-226
Fits most JAZ style 6-bolt fuel cells. Flange gasket is not included — order gasket part number 166G06ERL separately.
FAQ
What fuel cells does this cap fit?
It fits most JAZ-style 6-bolt fuel cells with a 4.438" flange.
Is a gasket included?
No, the flange gasket is not included; order gasket part number 166G06ERL separately.
What is the cap made of?
It is CNC machined from 6061-T6 billet aluminum with a black anodized finish and stainless steel mounting hardware.

