1W1657 Bearing,Eng. 0.050In=1. Fits Caterpillar Models
1W1657 Bearing,Eng. 0.050In=1. Fits Caterpillar Models
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One New Aftermarket Replacement Main Bearing for Caterpillar (Cat) 3406 Series Engines
This aftermarket replacement crankshaft main bearing fits Caterpillar (Cat) 3406 series engines and is sized 0.050 in. undersize for use during engine rebuilds where the crankshaft journals have been reground to the 0.050 in. undersize specification. Main bearings support the crankshaft as it rotates under load; correct bearing size is critical for maintaining proper oil clearance and extending crankshaft life. This part is used in the engine block crankshaft saddle positions of the 3406 inline 6-cylinder diesel engine, a heavy-duty powerplant used widely across Caterpillar construction equipment, trucks, and marine applications.
Specifications
- Undersize: 0.050 in.
- Application: Crankshaft main bearing
- Weight: approx. 0.43 lbs.
- Dimensions: approx. 4 in. x 2.9 in. x 1.4 in.
Compatible Models
Caterpillar (Cat) Engines: 3406, 3406B
Note: This is an undersized bearing for use only with crankshafts that have been reground to the 0.050 in. undersize. Confirm crankshaft journal diameter before ordering.
Replaces Part Number(s):
1W1657, 1W-1657
New aftermarket replacement part - not remanufactured, not used.
