Fuel Water Separator 3971865

positive OEM
Part# 3971865
Filters water and contaminants from diesel fuel to protect engine systems.
Package discount applied. Your savings:
info
non-returnable Non-returnable info
Have a Question?

Description

The Cummins Fuel Water Separator (3971865) is a filtration component designed to remove water and contaminants from diesel fuel before it reaches the engine. It ensures the delivery of clean fuel to maintain engine operation and protect fuel system components. This separator supports fuel system integrity by preventing water-induced damage and contamination.

Key Specifications

  • Application: Tier 3 5.9L ISB/QSB engines
  • Function: Removes water and impurities from fuel
  • Compatibility: QSB5.9 CM850, QSB6.7 M CM2250
  • Construction: Durable housing, filter media, water drain valve
  • Features: High-efficiency filtration, water drain valve, corrosion-resistant materials
  • 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# 3971865
Type OEM
Part# variations 3971865 CUM,
3971865CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty