Heat Exchanger 3978734

positive OEM
Cummins
Part# 3978734
note
Heat exchanger regulating engine and transmission fluid temperatures.
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Extended Lead Time
non-returnable Non-returnable info
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Description

The Cummins Heat Exchanger (3978734) is a component designed to transfer heat between fluids without mixing, regulating temperatures within engine and transmission systems. It maintains optimal operating conditions by facilitating thermal energy exchange, supporting system efficiency and longevity in commercial vehicles.

Key Specifications

  • Application: Tier 3 5.9L ISB/QSB engines
  • Function: Transfers heat between engine coolant and transmission fluid
  • Compatibility: Cummins QSB5.9 CM850 series
  • Construction: Corrosion-resistant metal alloy
  • Features: Compact design, maximized surface area, corrosion resistance
  • 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# 3978734
Type OEM
Part# variations 3978734 CUM,
3978734CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty