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PDI Big Boss Cummins ISX/X15 Stage 2 Cylinder heads are meticulously designed to surpass the most demanding expectations
It is an all new casting and assembly so that you can feel confident you are getting new product and not remanufactured
At Big Shop Diesel
The gradual angles of the manifold have been built to reduce swirl rate resulting in cooler exhaust temperatures by 75-100 degrees
PDI CAT Crankshaft Damper | C12 and C13 Radiator PDI Big Boss Cummins ISX/X15Available for: 1994 2007 CAT C12 and C13 Engines Warranty: 1 Year Unlimited Mile Warranty Our viscous torsional damper is a design that consists of a free rotation inertia ring surrounded by a viscous silicone fluid enclosed in a laser welded, sealed housing. When crankshaft torsional vibrations occur, the outer housing of the damper reacts with the crankshaft, twisting as it rotates, while the inertia ring attempts to rotate at a constant speed. This
