Reliable Engine Performance Starts with Precision Engineering. When your heavy-duty equipment demands a rebuild, the 3038997 (also referred to as 3038997) main bearing is the critical component for restoring crankshaft stability and extending engine life.
As a professional supplier specializing in diesel engine parts, we provide OEM standard replacements that match the exact specifications of the original equipment, ensuring a seamless fit for your maintenance needs.
| Attribute | Details |
|---|---|
| Model NO. | Compatible with Cummins NTA855 / NT855 Engines |
| Part Number | 3038997 / 3038997 (Unformatted) |
| Product Name | Crankshaft Main Bearing / Shell Main |
| Type | Engine Internal Components - Bearing Set |
| Condition | Brand New, OEM Standard Replacement |
| Application | Engine rebuild, overhaul, routine maintenance |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | Express (DHL, Fedex, EMS, UPS), Air Freight, Sea Freight |
| MOQ | 1 Piece |
| Stock Status | In Stock / Fast Global Dispatch |
| Packaging | Industrial Export Packing (Protection for precision surfaces) |
Choosing the right bearing is the difference between a successful overhaul and a premature engine failure. Here is how our solution compares to standard aftermarket options.
| Core Purchase Points | Our OEM Standard 3038997 | Common Low-Cost Parts |
|---|---|---|
| 1. Material Structure | High-strength Tri-metal alloy (Steel, Copper, Lead/Tin) | Single or Bi-metal (Lower load capacity) |
| 2. Precision Fit | Strict tolerance matching for NTA855 crankshafts | Varied tolerances, risky installation |
| 3. Heat Dissipation | Optimized oil film clearance for thermal stability | Poor heat transfer, leads to "spun" bearings |
| 4. Load Endurance | Designed for heavy-duty industrial and marine loads | Fails under high pressure / RPM |
| 5. Surface Coating | Anti-friction overlay for initial start-up protection | Thin or non-existent coating |
| 6. Service Life | Extended overhaul intervals (8,000+ hours) | Unpredictable lifespan |
Symptoms usually include a drop in oil pressure after the engine reaches operating temperature, metallic knocking sounds from the lower block, and the presence of copper or silver-colored metal shavings in the oil filter during inspection. Immediate replacement with 3038997 is required to prevent crankshaft damage.
First, verify the oil pump efficiency and check for blockages in the oil galleries. If the 3038997 shows uneven wear, ensure the crankshaft is measured for roundness. We recommend using our OEM-standard replacements to ensure perfect alignment with original housing bores.
Answer: Our bearings utilize an OEM-standard tri-metal structure designed specifically for high-torque environments. They are trusted by repair shops and equipment fleets globally for their durability and consistent performance in harsh conditions.
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
Send Your Part Number to get an instant quote and technical advice.
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