Description
A quality fuel system cap isn’t just a closure—it’s a critical seal that prevents contamination, fuel evaporation, and pressure loss during high-performance operation. The Peterson Fluid Billet Cap & Neck Assembly delivers precision engineering with a robust aluminum construction designed to withstand demanding racing conditions. Whether you’re building a custom fuel system or upgrading your existing setup, this weld-on bung provides a secure, leak-free connection you can trust.
- 1.438 in. outside diameter
- Aluminum bung construction
- Aluminum threaded cap
- Red anodized finish
- Weld-on installation
- Complete kit assembly
- Peterson OEM quality






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