Description
When your engine is pushing hard, the last thing you want is a cooling system that can’t keep up. The Allstar Performance Radiator Cap (ALL30129) delivers a rock-solid 29-31 PSI pressure rating to raise your coolant’s boiling point, protect against overheating, and keep your engine running at its best — whether you’re on the track or the street. It’s a small upgrade that makes a serious difference.
- Pressure Rating: 29-31 PSI
- Shape: Round
- Fitment: Standard radiator necks
- Sold: Individually
- Seal: Prevents coolant loss
- Build: Heavy-duty construction
- Use: Street or race applications
- Brand: Allstar Performance
- MPN: ALL30129
With its superior sealing ability and high-pressure threshold, the Allstar Performance ALL30129 Radiator Cap is a trusted choice for performance enthusiasts who refuse to compromise. Fits a wide range of standard radiator necks, so swapping it in is quick and easy. Simple, reliable, and built to last — just the way performance parts should be.






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