Valve Cover 3975678

positive OEM
Cummins
Part# 3975678
note
Engine valve cover sealing valve train and managing oil containment.
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Description

The Cummins Valve Cover (3975678) is a protective engine component that seals the valve train area to prevent oil leaks and contamination. It maintains lubrication integrity and supports pressure regulation within the engine, ensuring proper valve train operation in heavy-duty diesel engines.

Key Specifications

  • Application: Tier 3 8.3L C engines, ISC CM850, ISL9 CM2150 SN, QSC8.3 CM850, QSL8.9 CM2150 L141, QSL9 CM850
  • Function: Seals valve train, contains oil, manages crankcase pressure
  • Compatibility: Cummins ISC, ISL, QSC, QSL engine series
  • Construction: Aluminum alloy
  • Features: Integrated breather system, precision sealing surfaces, spark plug tube integration
  • 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). 

 

For more shipping information, please see our Shipping & Delivery page.

More Information

Current Part# 3975678
Type OEM
Part# variations 3975678 CUM,
3975678CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty