Reliable Engine Overhaul Solutions for Heavy Duty Equipment and Industrial Maintenance.
Finding a reliable source for ME039860 (also listed as ME039860) is critical for technicians and fleet managers who prioritize machine uptime. This main bearing set is engineered specifically for Mitsubishi 4D series engines, ensuring the crankshaft operates with minimal friction and maximum stability under extreme thermal stress.
Whether you are performing a routine inspection or a complete engine overhaul, using an OEM-standard replacement ensures that your equipment maintains its original performance specifications without the premium dealer price tag.
| Field | Details |
|---|---|
| Model NO. | 4D31, 4D32, 4D33, 4D34, FE444, FE639 |
| Product Name | Crankshaft Main Bearing Set |
| Part Number | ME039860 / ME039860 |
| Type | Engine Internal Friction Parts |
| Condition | Brand New, OEM Standard Replacement |
| Material | High-Strength Tri-Metal Alloy |
| Application | Engine rebuild, overhaul, maintenance |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Dispatch |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express: DHL Fedex EMS UPS or by Air/ Sea |
Investing in the right bearing can be the difference between a 10,000-hour engine life and a premature failure. Below is a comparison between our premium replacement and low-cost alternatives.
| Feature | Our Premium Replacement | Standard Aftermarket |
|---|---|---|
| Material Composition | OEM Grade Tri-Metal (Steel/Copper/Lead) | Basic Aluminum Alloy |
| Heat Resistance | Up to 300 Degrees Celsius | Fails at 220 Degrees Celsius |
| Fatigue Strength | High Load Carrying Capacity | Prone to surface cracking |
| Precision Fit | Micron-level tolerance matching | Variable fitment issues |
| Oil Film Retention | Advanced surface micro-grooves | Smooth surface (poor retention) |
| Longevity | Matches Original Service Interval | Unpredictable lifespan |
Not sure how this issue affects your equipment?
Our technical team helps operators avoid costly downtime by providing professional guidance during the procurement process:
Identify potential risks during maintenance such as bearing seizure or crankshaft wear.
Recommend suitable replacement parts if needed based on your specific engine serial number.
Support both inspection advice and parts supply for global construction and transport fleets.
Q1: What are the symptoms of a worn ME039860 main bearing in a 4D34 engine?
A1: Common signs include low oil pressure, a deep rhythmic knocking sound from the bottom of the engine (especially under load), and metallic debris found in the oil filter during an oil change. Immediate inspection is required to save the crankshaft.
Q2: Can I replace just one main bearing or do I need the full set?
A2: We always recommend replacing the complete set for ME039860. Bearings wear at a similar rate, and installing a single new bearing will cause uneven load distribution on the crankshaft, leading to rapid failure.
Q3: Why Choose This Product Name?
A3: Because it features an OEM-standard tri-metal structure and is trusted by repair shops and equipment fleets worldwide for its durability in harsh environments.
Ready to order or need a formal quote? Contact us directly for immediate assistance.
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