Description
A reliable filler cap and bung assembly is essential for any custom fuel, coolant, or overflow system—whether you’re building a dedicated race car or fabricating a clean engine bay. The Allstar Performance weld-in design offers permanent, leak-free security without relying on clamps or adapters. This kit gives you the precision fitment and durability that separates professional builds from amateur work.
- 1.375 in. OD
- Steel weld-on bung
- Aluminum threaded cap
- Black anodized finish
- Complete bung and cap kit
- Fabrication required
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