1W-1662 Main bearing CAT spare part

1W-1662 Main bearing CAT spare part Featured Image
  • 1W-1662 Main bearing CAT spare part
  • 1W-1662 Main bearing CAT spare part
  • 1W-1662 Main bearing CAT spare part

Short Description:

1W-1661 CAT main bearing with 29.72 mm width, bimetallic thin-wall split main shell, 0.25mm oversize. It carries radial crankshaft load after journal regrinding for overhaul of CAT 3204 engine.


Product Detail

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description

This main shell is heavy-duty repair bearing for 3204 engine, 0.51mm oversize. Copper-lead anti-friction alloy lining bonded to steel backing with locating oil hole and oil grooves for stable lubrication. It is designed for heavily worn journals with large grinding removal to restore proper clearance. Widely used on legacy D3, D4 dozers, track loaders and backhoe loaders, dedicated for deep crankshaft reconditioning of 3204 engine.

Part number: 1W-1662
Alternative name: Main Bearing shell
Size: 0.51mm oversize (0.020″)
Structure: Split bimetallic thin-wall bearing shell
Material: Steel Backed Copper-Lead Bearing, Steel Backed Aluminum Bearing
Process: Stamping, alloy casting, inner bore honing, oil hole machining, deburring
Fit engine: CAT 3204
Fit machine: 215B excavator, D3/D3B/D3C/D4C dozer, 931B/943/953 track loader, IT18/IT28 integrated toolcarrier, 916/926 wheel loader
Mounting position: Crankshaft main journal
Function: Support crankshaft, build oil film, bear radial load, match crank journals reground by 0.51mm

Advantages

1. 0.51mm large oversize specification for heavily worn, deeply reground crankshaft to save crank replacement cost.
2. Copper-lead alloy lining has good conformability, tolerates light journal scoring and resists seizure.
3. Locating oil hole aligns accurately with block galleries for continuous oil supply.
4. Strict flatness control prevents bearing rotation and shifting after installation.
5. Thin-wall structure improves heat dissipation for long working hours under earthmoving impact load.
6. Same mounting form as other 3204 main bearings for consistent repair operation.

FAQ 

Q1: Can 1W-1662 interchange with 1W-1661?
A1: Not interchangeable. They have different oversize values. Select strictly according to reground journal size.
Q2: Can this 0.51mm oversize shell be installed on a brand new crankshaft?
A2: No. It is repair oversize bearing. New crankshaft uses STD standard bearing only.
Q3: Can I replace only this single shell and reuse old ones?
A3: Temporary installation is allowed, but wear rate differs. Recheck clearance, full set replacement preferred.
Q4: How to store the bearing shell?
A4: Pack individually, protect alloy surface from scratches and store in dry anti-rust environment.

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