Seeking a reliable 375-6988 (3756988) connecting rod bearing for your next engine overhaul? As a specialized engine component supplier, we provide OEM-standard replacements engineered for heavy-duty Caterpillar equipment. Whether you are maintaining a 320D2 excavator or a 924K wheel loader, our precision-machined bearings ensure optimal oil film retention and crankshaft protection under extreme loads.
| Detail Field | Product Information |
|---|---|
| Part Number | 375-6988 / 3756988 |
| Compatible Engine Models | Caterpillar C4.4, C6.6 ACERT |
| Primary Equipment Application | Excavators 312E, 320D2, 323D2; Loaders 924K, 930K, 938K; Asphalt Pavers; Motor Graders |
| Product Name | Connecting Rod Bearing / Conrod Shell |
| Condition | Brand New, OEM Standard Replacement |
| Material Structure | Tri-Metal Lead Bronze or Aluminum Alloy (Per OEM Spec) |
| MOQ | 1 Piece (Full Engine Sets Recommended) |
| Stock Status | In Stock / Fast Dispatch within 48 Hours |
| Payment Terms | T/T, Western Union, MoneyGram |
| Delivery Methods | DHL, Fedex, EMS, UPS, Air Freight, Sea Freight |
Choosing the right bearing is the difference between a successful 10,000-hour service life and premature engine failure. Below is how our replacement part compares to standard market alternatives.
| Procurement Priority | Our OEM-Standard 375-6988 | Generic Aftermarket Options |
|---|---|---|
| Material Integrity | High-strength Tri-metal for superior fatigue resistance | Standard bi-metal (prone to heat deformation) |
| Dimensional Precision | Micron-level accuracy for perfect oil clearance | Variable tolerances causing oil pressure drops |
| Seating Fit | Perfect tang location for C4.4/C6.6 conrods | Poor fitment leading to spun bearings |
| Heat Dissipation | Enhanced thermal conductivity layer | Inefficient cooling under high RPM |
| Surface Hardness | Engineered to prevent crankshaft scoring | Inconsistent hardness causing shaft wear |
| Cost Efficiency | Direct supplier pricing with long-term durability | Cheap initial price but high risk of rework |
Engine vibration or knocking sounds often point to worn rod bearings. Our technical team helps operators avoid catastrophic failures:
Identify potential risks during routine oil analysis and maintenance intervals.
Recommend suitable replacement parts based on your specific engine serial number.
Support both inspection advice and professional parts supply for global fleets.
Send Your Part Number to our experts for a free compatibility check.
Common symptoms include low oil pressure at operating temperatures, a metallic "knocking" sound that increases with engine RPM (Rod Knock), and the presence of non-ferrous metal shavings in the oil filter. If you detect these, immediate replacement of the 3756988 bearing is required to save the crankshaft.
Yes, the 375-6988 is a standard component for many C4.4 and C6.6 configurations. However, always verify with your engine serial number as some marine or industrial variants might use different undersize options.
OEM-standard tri-metal structure: Our bearings utilize a high-performance overlay that provides better embeddability and conformability than cheaper alternatives. Trusted by repair shops & equipment fleets: We supply professional engine rebuilders globally who demand reliability.
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