Overhaul Rebuild Kit | Isuzu 6WG1 Engine / Hitachi ZX450-3 ZX850-3 EXZ2001 Excavator

Restore peak performance and long-term durability to your heavy-duty machinery with the Overhaul Rebuild Kit for Isuzu 6WG1 Engine, engineered specifically for Hitachi ZX450-3, ZX850-3, and EXZ2001 excavators. This complete kit provides all major components required for a full internal engine rebuild—ensuring your engine returns to optimal factory-level performance even under the harshest working demands.

The Isuzu 6WG1 is known for its exceptional power, high torque output, and long service life. Over time, however, continuous heavy-duty operation in mining, construction, demolition, and excavation leads to wear on internal engine components. This overhaul kit addresses all major wear points to restore reliable, efficient operation.

Included Components:

• Pistons (full set) – High-strength, heat-resistant pistons for improved combustion efficiency.

• Piston rings – Enhance sealing, restore compression, reduce oil consumption.

• Main & rod bearings – Precision bearings to ensure smooth crankshaft rotation.

• Thrust washers – Maintain crankshaft axial clearance under heavy load.

• Full gasket set – High-quality seals to prevent coolant, oil, and combustion leaks.

• Valve stem seals – Ensure proper oil control in the cylinder head.

• Liners / sleeves (if applicable) – Cylinder wall renewal for extended engine life.

• Additional seals & O-rings – Complete sealing for every critical engine section.

Key Benefits:

• OEM-grade durability for heavy mining and construction environments.

• Restores power, torque, and fuel efficiency, improving overall machine output.

• Reduces smoke, oil burning, and low compression issues.

• Extends engine lifespan, delaying costly replacements.

• Ensures reliable performance under extreme load and long working hours.

• Perfect fit for all Isuzu 6WG1-powered Hitachi machines, avoiding compatibility issues.

Application Compatibility:

This rebuild kit is engineered for:

• Hitachi ZX450-3 Excavator

• Hitachi ZX850-3 Excavator

• Hitachi EXZ2001 Excavator

• Any equipment using the Isuzu 6WG1 diesel engine

Ideal For:

• Complete engine overhauls

• Preventive maintenance schedules

• Heavy-duty performance restoration

• Repairing worn or damaged internal engine parts

• Extending the service life of high-value excavator equipment

Overhaul Rebuild Kit for Isuzu 6WG1 Engine Hitachi ZX450-3 ZX850-3 EXZ2001 Excavator

Engine Model: ISUZU 6WG1 Engine

Machine Model: HITACHI

Application: ZX450-3, ZX850-3, EXZ2001