Description
A quality filler cap and bung assembly is essential for any serious racing or custom build project—it keeps your fluids secure while presenting a clean, finished look under the hood. This Allstar Performance kit combines a durable weld-in steel bung with a polished aluminum threaded cap, giving you a professional-grade solution that won’t leak or corrode. Whether you’re building a custom cooling system or fuel cell setup, this large-diameter cap handles high-pressure applications without compromise.
- 3.000 inch outer diameter
- Weld-in steel bung
- Polished aluminum cap
- Threaded connection
- Complete bung and cap kit
- Professional fabrication required
- Allstar Performance MPN ALL36177






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