Description
A quality filler cap and bung are essential for maintaining system integrity under pressure and vibration—especially in high-performance applications where reliability matters. This Allstar Performance kit delivers a clean, professional finish while ensuring a secure, leak-free seal on your radiator, overflow, or custom reservoir. The bolt-in aluminum construction eliminates the need for welding, making installation straightforward for both track and street builds.
- 1.375 in. outside diameter
- Aluminum bung
- Aluminum threaded cap
- Polished finish
- Bolt-on installation
- Complete kit
- MPN: ALL36183
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