Main Bearing 4938940

positive OEM
Cummins
Part# 4938940
note
Engine main bearing supporting crankshaft rotation with oversize design.
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Description

The Cummins Main Bearing Oversize 1.00 mm (4938940) supports the crankshaft within the engine block, providing a low-friction surface for rotation. It consists of two halves separated by an oil film to evenly distribute crankshaft load and reduce wear during engine operation.

Key Specifications

  • Application: B series engines
  • Function: Supports crankshaft rotation
  • Compatibility: Heavy-duty diesel engines
  • Construction: Metal alloy halves with oil film interface
  • Features: 1.00 mm oversize, two-piece design
  • Quality: OEM Cummins part

Shipping Info

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More Information

Current Part# 4938940
Type OEM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty