2003-2007 5.9L & 2007.5-2018 6.7L Dodge Ram Cummins Diesel Engines Coolant Bypass Kit

uilt with ultra-durable braided hoses paired with precision CNC-machined aluminum fittings to provide a leak-free seal capable of handling extreme high-pressure spikes.

Establishes a dedicated secondary cooling flow path from the rear of the block directly to the thermostat housing, eliminating deadly coolant stagnation and localized boiling around cylinder number 6.

Effectively prevents blown head gaskets, cracked blocks, and dropped valve seats by dropping engine operating temperatures uniformly during heavy towing and high-load operations.

Features a high-quality integrated thermostatic flow control that opens only when the rear block demands extra flow, preventing engine over-cooling during cold weather.

Fit: 2003–2007 Dodge Ram Cummins 5.9L (Manual Transmission ONLY) and 2007.5–2018 Dodge Ram Cummins 6.7L (Manual & Automatic Transmissions).