Cummins Rear Main Seal 89-18 5.9L / Dodge 6.7L Cummins Select Seal Option:Rear Main Seal which means that they have

which means that they have a tendency of failing

The Techni-Cooler system aggressively increases the cooling capacity by adding an abundance of cool

quicker throttle response

Includes gauge mounting hardware and installation instructions

stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe

Cummins Rear Main Seal 89-18 5.9L / Dodge 6.7L Cummins Select Seal Option:Rear Main Seal which means that they haveIs your Cummins leaking oil at the rear of the engine? It's your rear main seal that needs replacing. We offer this seal in two different options. The first, called "Rear Main Seal" is an exact replacement for the seal that's currently in your truck and a great option if your crankshaft is not worn. The second option, "Rear Main Seal with Repair Sleeve," features the same great sealing properties as the standard seal but includes a "speedy" or "wear"