Cummins Oil Cooler Kit, 4955778

replaces: 4955778, 4089900
Kit Includes1 x Protective Plug 40264201 x Protective Plug 40589564 x Screw 41018672 x Screw 41018683 x Gasket 49735322 x O-Ring 3044593

Oil coolers should always be replaced after a catastrophic engine failure or when rebuilding an engine.

An oil coolers primary function is to cool the engine lubricating oil, which in turn lowers the temperature of critical engine components, primarily the engine bearings. When oil exceeds normal operating temperatures, it loses viscosity and lubricating properties. When this happens, the oil begins to break down and deteriorate very quickly. Our premium grade oil coolers help extend the life of you engine oil and the longevity of your engine.