Review on Mopar 5511 6901AA Radiator Cap: Ensuring Optimum Cooling Performance by Dave Brummet

My 2004 Jeep Wrangler didn't get to the point of overheating, but after longer drives you could hear the coolant boiling after turning the jeep off. After a particularly long ride, coolant squirted into the expansion tank, leading me to suspect a defective radiator cap. Replaced with the original Mopar cover and the problem was solved. The cooling system maintains the correct pressure and no longer boils.