Seeking a reliable 37501-02201 or 3750102201 crankshaft main bearing for your heavy-duty engine? As a specialized engine components supplier, we provide premium OEM-standard replacements designed specifically for MHI S4S and S6S diesel engines typically found in forklifts, excavators, and industrial generators. Ensure your equipment maintains peak performance with precision-engineered bearings that prevent friction and extend crankshaft life.
The following technical details are verified for part number 37501-02201 to help maintenance teams identify the correct fitment for engine overhauls.
| Attribute | Detailed Specification |
|---|---|
| Model NO. | MHI S4S / S6S Series |
| Product Name | Crankshaft Main Bearing (Crankshaft Bushing) |
| Part Number | 37501-02201 / 3750102201 |
| Condition | Brand New, OEM Standard Replacement |
| Application | Forklifts, Construction Machinery, Engine Rebuilds |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch Global |
| Packaging | Industrial Export Packing (Protective Coating) |
When it comes to engine longevity, the quality of your bearings is non-negotiable. Our 37501-02201 units are manufactured using high-fatigue strength materials to withstand extreme pressure.
| Feature | Our OEM-Standard Replacement | Common Low-Cost Parts |
|---|---|---|
| Material Composition | High-grade Tri-metal / Al-Sn Alloy | Basic Bi-metal or recycled alloy |
| Tolerance Precision | Strictly ±0.005mm | Inconsistent sizing |
| Oil Film Retention | Optimized surface micro-grooves | Rough surface finishing |
| Heat Resistance | Stable up to 250 Degrees Celsius | Warps under high thermal stress |
| Installation Fit | Drop-in replacement for S4S/S6S | May require manual modification |
| Expected Lifespan | Full service interval (10,000+ hours) | Frequent premature failure |
Typical symptoms including low oil pressure warnings and deep metallic knocking sounds from the lower engine block. If you find copper shavings in the oil filter, it is time to replace your 37501-02201 bearings immediately to avoid crankshaft damage.
Our solution offers an OEM-standard tri-metal structure that provides superior load-carrying capacity. It is trusted by repair shops and equipment fleets worldwide for critical maintenance.
Our team helps operators:
Identify potential risks during maintenance cycles
Recommend suitable replacement parts based on engine wear
Support both inspection advice and parts supply
Get a quick quote for 37501-02201 with global shipping rates today.
WhatsApp: +8613532379052 Email: [email protected] Follow us on FacebookFill out the form below to receive pricing and availability for your specific engine needs.
About Our Company & Main Products: We specialize in high-performance engine assemblies and spare parts for world-leading brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our inventory focuses on essential components for engine rebuilds and overhauls, such as: Cylinder Liners, Pistons, Piston Rings, Main Bearings, Connecting 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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