C4389272 Crankshaft Thrust Washer Axial Limiting Bearing Shim For DFCV 15NNS6B580A Gas Engine Positioning Parts
Product Details
| OEM: | CC4389272 | Size: | 15NNS6B580A |
|---|---|---|---|
| Highlight |
Crankshaft Thrust Washer for DFCV Truck,C4389272,C4389272 Crankshaft Thrust Washer |
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Product Description
C4389272 Crankshaft Thrust Washer is a precision anti-friction bearing shim fitted at the thrust journal of DFCV 15NNS6B580A gas engine crankshaft. It bears axial thrust generated from transmission load and gear meshing, restricts forward and backward displacement of the crankshaft and locks end-play within the factory allowable range. This aftermarket replacement washer solves excessive crank float, main bearing edge wear and irregular knocking noise caused by surface layer peeling, thickness loss and lubrication groove clogging after long operation under high torque. Stable axial positioning protects timing gear meshing state and cuts the chance of catastrophic crank damage for heavy-duty LNG tractors running long-haul trunk freight missions.
Product Advantages Built with bimetallic composite structure, steel backing offers structural rigidity while alloy bearing surface provides excellent friction reduction. Precision-etched oil grooves reserve persistent lubricating film to avoid dry friction under sudden axial impact. Strict thickness sorting ensures consistent end-play control. Every thrust washer undergoes flatness and surface inspection before shipment, OEM outline and oil groove layout for direct fit during engine overhaul.
| Item | Parameter |
|---|---|
| Part Number | C4389272 |
| Product Name | Crankshaft Thrust Washer |
| Matching Engine | DFCV 15NNS6B580A |
| Material | Bimetallic Alloy With Anti-Friction Layer |
| Feature | Axial Load Bearing, Crankshaft End Play Control, Anti-Scuffing, Lubrication Groove Design |
| MOQ | Negotiable |
| Application | Crankshaft Axial Positioning and Side Thrust Bearing Assembly |
Applicable Models Fit for DFCV heavy-duty LNG tractors equipped with 15NNS6B580A gas engine, widely used for intercity bulk cargo and long-distance trunk logistics transport.
FAQ
Q1: How do technicians judge that thrust washers have worn beyond service limit?
A1: Measured crankshaft end-play exceeds specification, and metal fine powder appears inside engine oil.
Q2: What risk will excessive crankshaft axial float bring to this gas engine?
A2: Timing gear tooth load distributes unevenly, which accelerates gear chipping and valve timing deviation.
Q3: Is there any special attention when installing the thrust washer?
A3: Align the oil groove toward the oil supply side to guarantee continuous lubrication of the friction surface.
Q4: When is the best time to renew this set of thrust washers?
A4: Replace together with main bearing shells whenever crankshaft is disassembled for inspection.
Product Highlights
C4389272 Crankshaft Thrust Washer is a precision anti-friction bearing shim fitted at the thrust journal of DFCV 15NNS6B580A gas engine crankshaft. It bears axial thrust generated from transmission load and gear meshing, restricts forward and backward displacement of the crankshaft and locks end...
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