Reliable engine performance begins with precision-engineered internal components. For operators and repair shops maintaining Kubota V3800 series engines, the 1J550-21112 (also recognized as 1J55021112) piston is the critical component required for high-compression durability. Whether you are performing a routine overhaul or a complete engine rebuild, sourcing an OEM-standard replacement ensures the longevity of your industrial equipment.
| Detail Item | Specifications |
|---|---|
| Model NO. | V3800 / V3800-T / V3800-DI-T |
| Product Name | Engine Piston |
| Part Number | 1J550-21112 / 1J55021112 |
| Condition | Brand New, OEM Standard Replacement |
| Application | Engine rebuild, overhaul, maintenance |
| MOQ | 1 Piece |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | DHL, Fedex, EMS, UPS, Air/Sea Freight |
| Stock Status | In Stock / Fast Dispatch |
| Critical Success Factors | Our OEM-Standard Piston | Low-Cost Aftermarket |
|---|---|---|
| Alloy Composition | High-silicon aluminum alloy for heat resistance | Standard aluminum (prone to expansion) |
| Ring Groove Reinforcement | Alfin insert for durability in turbo models | No reinforcement (leads to premature wear) |
| Dimensional Accuracy | Micron-level tolerance matching V3800 specs | Loose tolerances causing blow-by issues |
| Thermal Conductivity | Optimized for V3800-T cooling requirements | Poor heat dissipation (engine overheating) |
| Surface Treatment | Graphite or tin coating for break-in protection | Uncoated or low-quality finish |
| Service Life | Matches original maintenance cycles | Frequent failures and downtime |
The Kubota V3800 engine is a workhorse in the construction and agricultural sectors. The 1J550-21112 piston is compatible with the following machines:
| Equipment Category | Common Machine Models |
|---|---|
| Skid Steer Loaders | SVL75, SVL75-2, SSV75 |
| Agricultural Tractors | M8540, M9540, M108S, M96S |
| Excavators | KX080-3, KX080-4 |
| Forklifts & Industrial | Various V3800-DI-T Power Units |
Unexpected engine noise or loss of power can be frustrating. Our technical team helps operators avoid costly mistakes:
Identify potential risks during maintenance to prevent total engine failure.
Recommend suitable replacement parts based on your specific V3800 engine serial number.
Support both inspection advice and professional parts supply for global shipping.
Common signs include excessive blue or white smoke, significant power loss, and high oil consumption. If you notice a "knocking" sound during combustion, it may indicate a cracked piston crown or worn ring grooves, requiring immediate replacement with a 1J55021112 kit.
For a Kubota V3800 engine overhaul, it is highly recommended to replace the full set of pistons and rings. This ensures balanced compression across all cylinders and prevents future downtime caused by uneven wear.
Our 1J550-21112 features an OEM-standard tri-metal structure. It is trusted by repair shops & equipment fleets worldwide for its ability to withstand the high-torque demands of turbocharged V3800 units.
We specialize in providing high-quality engine assemblies and spare parts. Our inventory covers major brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. From heavy-duty mining to precision farming, we supply the core components that keep your machinery moving.
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