Ram 3500 Coolant Reservoirs

It's been a decade since the 2013-2018 RAM 6.7L Cummins began to roll off the assembly line. While robust and reliable, the 2013-2018 RAM 6.7L Cummins is only partially immune to the test of time. Stock components, like the plastic degas tank, become brittle and cloudy over time, making it prone to ...

The factory expansion tank on your 2019+ Ram 6.7L Cummins is a weak point in an otherwise durable cooling system. Made from plastic, the stock tank becomes brittle over time and is prone to cracking, discoloration, and internal degradation after thousands of heat cycles. Mishimoto's aluminum expansi...

The factory expansion tank on your 2019+ Ram 6.7L Cummins is a weak point in an otherwise durable cooling system. Made from plastic, the stock tank becomes brittle over time and is prone to cracking, discoloration, and internal degradation after thousands of heat cycles. Mishimoto's aluminum expansi...