Plain Hose 3991042

positive OEM
Cummins
Part# 3991042
note
OLD# 3926113
Flexible hose for fluid transfer in engine systems
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Extended Lead Time
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Description

The Cummins Plain Hose (3991042) is a flexible conduit designed to transport fluids within engine systems. It serves as a durable connection in fuel and coolant circuits, maintaining fluid integrity under operational conditions. This hose supports essential fluid transfer in commercial and industrial engine applications.

Key Specifications

  • Application: Tier 1 5.9L B engines
  • Function: Fluid transfer conduit
  • Compatibility: Cummins B, C, and 4B engine series
  • Construction: Rubber-based hose with reinforced sheathing
  • Features: Heat-resistant, flexible, direct-fit design
  • 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# 3991042
Old Part No.: 3926113
Type OEM
Part# variations 3991042 CUM,
3991042CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty