🔧 Stant Radiator Cap: Sleek and Reliable Black Model Review

Unless you're in a lower hot state the car doesn't need a 16lb pressurized system. This vacuum cap relieves your cooling system.

Unless the car is in a less hot state, it doesn't need a 16-pound pressurized system. This vacuum cap relieves your cooling system.

I am using this on a Bowman PE180 marine heat exchanger (combined with overflow) on a Perkins 4108 - works well so far (my previous radiator cap has been shown to tolerate excessive coolant loss at cruising speed).