

Fuel and Oil Caps
The ultimate accessory gives your hot rod the "COOL" factor!
You're going to love the look of our 50's style mechanical fuel and oil caps. These classic, caps have a unique locking mechanism that features a lid and arm/link with controlled stopping points to avoid contact with painted or polished surfaces. And it gives you convenient keyless access.
These patent-pending caps feature billet aluminum and stainless steel construction and O-ring seals and are available in standard, chrome or black anodized finishes. The caps will mount to any flat surface fuel or oil tank and our plug-in or screw-in adaptors mean you can have the perfect look for your style - you can even mix and match.
Here's why you'll love 50's Boy Hot Rod Fuel and Oil Cap!
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Brochure: Hot Rod Accessories (pdf)
How To: Fuel and Oil Caps Installation Guide (pdf)
Press Reviews: American Baggers - Oil & Fuel Caps (pdf)
Fuel and Oil Caps
Give your hot rod the ultimate accessory.
50's Boy classic mechanical fuel and oil caps are available in standard, chrome, and black anodized finishes. Our 0.25" and 0.75" threaded adaptors will fit your gas cap perfectly to most hot rods; mix and match finishes to suit your style! Or select our steel bung adaptor for your custom tank.
Fuel and oil caps come with a one-year mechanical guarantee.
| Finishes | ![]() |
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| Standard | Chrome | Black Anodized | |
| Adaptors | ![]() |
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| 0.25" | 0.75" | Bung |
Need help deciding or not sure which parts fit your hot rod? Consult the 50's Boy Advisor to find the fuel or oil cap that's right for you.
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Brochure: Hot Rod Accessories (pdf)
How To: Fuel and Oil Caps Installation Guide (pdf)
Press Reviews: American Baggers - Oil & Fuel Caps (pdf)
Fuel and Oil Caps
Mounts to any flat surface tank.
50's Boy Gas Caps will mount to any flat surface fuel or oil tank. Screw-in and weld-on (bung) gas cap adaptors are also available. See Fuel and Oil Caps Installation Guide for full instructions. Love your hot rod!

Brochure: Hot Rod Accessories (pdf)
How To: Fuel and Oil Caps Installation Guide (pdf)
Press Reviews: American Baggers - Oil & Fuel Caps (pdf)
Fuel and Oil Caps
The accessory everyone is talking about.
50's Boy Gas Caps will mount to any flat surface fuel or oil tank. Screw-in and weld-on (bung) gas cap adaptors are also available. See Fuel and Oil Caps Installation Guide for full instructions. Love your hot rod!
The press and the bike crowd are raving about the ultimate accessory - 50's Boy hot rod-style gas cap. Here's what they say:

American Bagger on The 50's Boy gas cap:
"It's the cat's meow of gas caps."
(November 2007)
...The stock dash has a domed gas cap cover, which requires a key to open. The 50's Boy gas cap eliminates the key requirement and looks like a million dollars...read more (pdf).
Brochure: Hot Rod Accessories (pdf)
How To: Fuel and Oil Caps Installation Guide (pdf)
Press Reviews: American Baggers - Oil & Fuel Caps (pdf)