When your Komatsu PC200-8 or PC200-7 excavator shows signs of oil pressure drop or engine vibration, replacing the internal bearings is critical for preventing catastrophic crankshaft failure. We provide the 0617003771 (also searched as 06170-03771) engine main bearing set, specifically engineered for the SAA6D107E-1 and 6D107 diesel engines.
This high-precision part ensures the smooth rotation of the crankshaft, reducing friction during high-load construction operations. Whether you are performing a routine overhaul or an emergency engine rebuild, our OEM-standard replacements offer the durability required for demanding environments.
Direct access to our parts specialists for stock verification and technical guidance.
| Attribute | Details for 0617003771 / 06170-03771 |
|---|---|
| Model NO. | PC200-8, PC220-8, PC200-7 (6D107 Engine) |
| Product Name | Main Bearing / Crankshaft Bearing Set |
| Part Number | 0617003771 / 06170-03771 |
| Condition | Brand New, OEM Standard Replacement |
| Material | High-Strength Tri-metal Alloy |
| MOQ | 1 Piece / 1 Set |
| Application | Engine rebuild, overhaul, maintenance |
| Stock Status | In Stock / Fast Dispatch |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | DHL, Fedex, EMS, UPS, Air/Sea Freight |
| Feature | Our OEM Replacement | Low-Cost Aftermarket |
|---|---|---|
| Material Composition | OEM-standard tri-metal structure | Bimetal or low-grade copper |
| Fitment Precision | 100% matched to SAA6D107E-1 specs | Variable tolerances (risky) |
| Heat Resistance | Designed for high-temp operation | Prone to premature wear/melting |
| Load Capacity | Heavy-duty construction rated | Standard light-duty use only |
| Service Life | Extended overhaul intervals | Frequent replacements needed |
| Reliability | Trusted by repair shops & fleets | High risk of crankshaft damage |
Q: Why is my engine knocking near the bottom of the block?
A: Knocking usually indicates worn main bearings like the 0617003771. When the clearance between the bearing and crankshaft increases, the oil film fails, leading to metal-on-metal contact. Immediate inspection is required to avoid regrinding the crankshaft.
Q: How do I know if I need 0617003771 or 06170-03771?
A: They are the same part. Construction machinery databases often use both formats. We provide the exact OEM specification to ensure your PC200-8 engine rebuild is successful.
Q: Why Choose This Main Bearing Set?
A: Our parts use an OEM-standard tri-metal structure. We are trusted by repair shops and equipment fleets globally because our components match the thermal expansion rates of the original engine block.
Not sure how this issue affects your equipment?
Our team helps operators:
Identify potential risks during maintenance
Recommend suitable replacement parts if needed
Support both inspection advice and parts supply
Early detection of bearing wear on your 6D107 engine can save thousands in repair costs. If you notice copper flakes in your oil filter, it is time for a replacement.
About Our Engine Solutions: We specialize in high-quality engine assemblies and spare parts for world-leading brands. Our core inventory includes components for Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. We provide comprehensive solutions for cylinder liners, pistons, piston rings, main bearings, con-rod bearings, thrust washers, overhaul gasket kits, fuel injection pumps, injectors, crankshafts, turbochargers, water pumps, oil pumps, cylinder blocks, cylinder heads, and connecting rods.
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