94-18 Cummins Fleece Coolant Bypass KitIncreased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5. 9 6. 7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Our coolant bypass kit adds a secondary

and salt spray corrosion testing

**** Some early build date trucks may have different size intakes

no weld design makes installing this on your truck a no hassle one and a half to two hour project

Part Number: 57218

and charged air piping with H&S Motorsports quality parts

street performance or racing applications

SW # 8 : 170 Hp increase

turbo parts and an overall better working oil system

Bungs are welded into place in convenient locations for connecting your water injection

1600° F Pyrometer

this exhaust manifold outflowed the factory exhaust manifold by 50% improving performance and throttle response

All heads are push rod clearanced