What's typically included

The contents of an overhaul kit vary depending on the specific pump model and application, but they generally include:

• Seals and Gaskets: Essential for preventing high-pressure fuel and oil leaks at various pump connections and housing joints.

• Plunger and Barrel Assembly: The critical high-precision matched set responsible for generating injection pressure.

• Delivery Valves: To ensure sharp fuel injection cut-off and prevent dribbling.

• Bearings and Bushings: For supporting rotating components like the camshaft to ensure smooth operation.

• Springs: Including control spring, plunger return spring, and delivery valve spring.

• Optional additions: Depending on the kit, it may also include parts like a camshaft, tappets, or housing cover seals for a more comprehensive rebuild.