Restore your Sumitomo machinery to peak performance with this premium Overhaul Rebuild Kit for the Isuzu 3LB1 Engine. Designed specifically for Sumitomo SH28J, SH25J, and SH30JX loader excavators, this rebuild kit ensures reliable engine operation, improved power output, and long-term durability under demanding workloads.
This complete kit includes precision-engineered OEM-grade components that match factory specifications, ensuring perfect fitment and dependable performance. Whether your machine is suffering from low compression, power loss, oil leakage, or worn internal parts, this kit provides everything needed for a professional, full-scale engine overhaul.
Kit Components Include:
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Pistons & Piston Rings
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Main Bearings
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Connecting Rod Bearings
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Full Gasket Set
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Crankshaft Seals
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Thrust Washers
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Valve Stem Seals
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Additional engine rebuild essentials (depending on model version)
Key Benefits:
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✔ Restores engine power and compression
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✔ Reduces oil consumption and blow-by
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✔ Ensures reliable engine performance under heavy load
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✔ Extends the service life of the Isuzu 3LB1 engine
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✔ OEM-standard components for perfect compatibility
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✔ Reduces downtime and long-term maintenance costs
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✔ Ideal for complete engine overhaul and preventive maintenance
Compatible Machinery:
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Sumitomo SH28J Loader Excavator
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Sumitomo SH25J Loader Excavator
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Sumitomo SH30JX Excavator / Loader Series
Frequently Asked Questions
1. Is this rebuild kit compatible with all Isuzu 3LB1 engines?
Yes, the kit is designed for all standard Isuzu 3LB1 engine configurations.
2. Which Sumitomo models does this kit fit?
It is compatible with Sumitomo SH28J, SH25J, and SH30JX loader and excavator models.
3. Does the kit include pistons and piston rings?
Yes, the kit includes new pistons and matching rings for full combustion restoration.
4. Are the components OEM quality?
All parts meet or exceed OEM specifications for durability and performance.
5. Can this kit be used for a full engine rebuild?
Absolutely. It includes all essential components needed for a complete overhaul.
Overhaul Rebuild Kit for Isuzu 3LB1 Engine Sumitomo SH28J SH25J SH30JX Loader Excavator
Engine Model: ISUZU 3LB1 Engine
Machine Model: SUMITOMO
Application: SH28J, SH25J, SH30JX




