Belt Tensioner 3974102

positive OEM
Cummins
Part# 3974102
note
Belt Tensioner 3974102 - Cummins

Belt Tensioner

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Description

Short Description

This belt tensioner is engineered to maintain optimal tension on the serpentine drive belt in heavy-duty diesel engines. Designed for seamless belt routing to components like the alternator and water pump, it ensures consistent accessory drive performance and minimizes wear and slippage.

Key Specifications:

  • Form: Spring-loaded drive belt tensioner
  • Function: Maintains tension on serpentine accessory drive belt
  • Application: Compatible with Cummins B‑Series, ISB, QSB, QSL, and similar engines (verify fitment prior to installation)
  • Construction: Steel housing with precision spring mechanism and pulley

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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# 3974102
Type OEM
Part# variations 3974102 CUM,
3974102CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty