PDI Big Boss Cummins ISX SOHC In-Frame Kit Low HP (3688099 Piston)

The PDI Big Boss Cummins ISX SOHC In-Frame Kit – Low HP is a premium engine rebuild solution engineered for precision, strength, and long-term reliability in Cummins ISX single overhead cam (SOHC) engines. Designed for low-horsepower applications, this complete in-frame kit provides all the essential components to restore power, efficiency, and dependability in demanding heavy-duty diesel environments.

Each Big Boss In-Frame Kit includes 3688099 low HP pistons, liners, rings, bearings, gaskets, and seals—all manufactured to OEM or higher specifications for exceptional fitment and performance. The high-strength pistons and precision-cut components ensure optimal compression, reduced oil consumption, and consistent operation under load.

Built for professional rebuilds and maintenance programs, the PDI Big Boss Cummins ISX SOHC In-Frame Kit – Low HP delivers the durability, precision, and performance quality trusted by fleets and diesel technicians across the industry.