Nothing lasts forever, except my neighbors refusal to respect quiet hours. But in an engine, we can take steps to assist in prolonging their life. Oil filters make quick and easy sense as engines generate heat, material breaks down and instead of letting all those pieces shred a systems internals, we filter them out. Why don't we do that with other critical fluids?

Enter the Sinister Diesel Coolant Filtration System with a standard WIX filter or optional CAT filter, for the 2003-2007 Dodge 5.9L Cummins. This coolant filtration system is a reliable and efficient solution for keeping your engine's coolant system clean and protected.

Now, why would you want to filter your coolant? Good question! Over time, your coolant can become contaminated with castings from the block and numerous other particles that will find nooks and crannies to deposit themselves into, most namely the water jackets of your engine. These deposits can create blockages which in turn results in increased pressure which can lead to head gasket failure or worse. Prevent this and keep your engine running cool and clean with this filter kit.

Even on freshly rebuilt, or brand new engines, the coolant is probably contaminated with microscopic particles like casting sand leftover from the manufacturing process, metal shavings, rust, and mineral deposits that can diminish the heat capacity of your truck's cooling system. Left inside the engine, these particles can cause premature wear to the bearings inside your water pump and cause expensive damage to the small passages inside your oil cooler. With the Sinister Diesel Cummins Coolant Filter Kit for the 2003-2007 Dodge 5.9L Cummins, you can be sure your cooling system is working at maximum efficiency for years to come.

This Cummins Coolant Filter Kit includes all mounts and fittings needed for installation and is machined from 6061 billet aluminum. The filter boss includes 2 threaded inlet ports and 1 outlet port. We recommend replacement of the first filter at 500 miles and replacement of the second and third filters after 3,000 miles each. After three filter changes, replacement can be done once a year.