Cap-Main Bearing 3680991

positive OEM
Cummins
Part# 3680991
note
Main bearing cap securing crankshaft in heavy-duty engines
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Extended Lead Time
non-returnable Non-returnable info
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Description

The Cummins Main Bearing Cap (3680991) is a critical engine component that secures the main bearings in place, maintaining crankshaft alignment and stability. It provides structural support within the engine block to ensure proper bearing function under operational loads.

Key Specifications

  • Application: Heavy-duty diesel engines
  • Function: Secures main bearings, maintains crankshaft alignment
  • Compatibility: Cummins engine series
  • Construction: 1045 low carbon steel
  • Features: Precision machined, heat-treated, high tensile strength
  • Quality: OEM Cummins part

Shipping Info

Next Day Air services are available for In Stock items. Our shipping cutoff time is Monday - Friday 4:30pm Eastern Standard Time (EST). 

 

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More Information

Current Part# 3680991
Type OEM
Part# variations 3680991 CUM,
3680991CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty