21q4-20812 21q4-20813 Excavator Throttle Knob R210

The contents of a Zero Switch overhaul kit vary depending on the specific application, but they generally include:

• Gaskets and Seals: Essential for preventing leaks of fluids and gases between components.

• Pistons and Rings: Key components for sealing the combustion chamber and controlling oil consumption.

• Bearings: For the main and connecting rods to ensure smooth rotation.

• Liners: Cylindrical sleeves that line the engine cylinders, if applicable.

• Valves and related components: To control the flow of fuel and exhaust.

• Optional additions: Some kits may also include parts like a crankshaft, timing chain, or cylinder head, depending on the level of the overhaul.