Overhaul Rebuild Kit for Komatsu 3D84-2 3D84N-2FA S3D84-2BA Engine
Restore your Komatsu engine to peak performance with this high-quality engine overhaul rebuild kit, specially designed for Komatsu 3D84-2, 3D84N-2FA, and S3D84-2BA engines. This kit is perfect for heavy-duty applications, delivering long-lasting reliability, excellent sealing, and improved engine efficiency.
Built to OEM standards, each part ensures a precise fit and exceptional durability. Ideal for Komatsu PC20-7, PC25-1, and PC28UU excavators, as well as other machinery powered by 3D84 series engines.
Application Compatibility
Fit For Engine Models:
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Komatsu 3D84-2
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Komatsu 3D84N-2FA
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Komatsu S3D84-2BA
Fits Machine Models:
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Komatsu PC20-7 Excavator
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Komatsu PC25-1 Excavator
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Komatsu PC28UU Excavator
Kit Contents
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1 Set of Overhaul Gasket Kit
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3 Cylinder Liners (Semi-finished)
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3 Pistons (Standard Size)
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3 Piston Pins
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6 Snap Rings
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3 Rod Bushings
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1 Set of Piston Rings (for 3 Pistons)
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1 Set of Main Bearings
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1 Set of Connecting Rod Bearings
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1 Set of Thrust Washers
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3 Intake Valves
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3 Exhaust Valves
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6 Valve Guides
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3 Intake Valve Seats
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3 Exhaust Valve Seats
Product Highlights & Features
⚙️ Precision Engineered Fit
Each component is manufactured to exact OEM specifications, guaranteeing smooth assembly and reliable performance.
🔩 Durable & High-Strength Components
Made from premium materials that resist heat, friction, and wear — ensuring long service life under demanding working conditions.
🧰 Complete Rebuild Solution
Includes all key components needed for a complete engine restoration, reducing downtime and ensuring maximum efficiency.
🧠 Semi-Finished Liners
Cylinder liners come semi-finished, allowing precise machining for the perfect clearance and compression ratio.
🚜 Designed for Komatsu Excavators
Perfect fit for Komatsu PC20-7, PC25-1, and PC28UU models powered by 3D84 engine variants.
Fitment Note
The cylinder liners in this kit are semi-finished and require additional machining for optimal performance and clearance.
