One premium exhaust bellows kit for select Kenworth and Peterbilt applications: 2007–2017 with Cummins ISX 11.9/15.0 and 2014–2016 with Paccar PX9. 3.500-inch inlet and outlet; overall length 12.540–13.050 inches. Includes two 561.29475 clamps and two 562.U856636 gaskets.
Manufacturer cross references: Paccar M6670910320; Paccar M66-7091-0320.
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