Water Inlet Connection 4003278

positive OEM
Cummins
Part# 4003278
note
Engine cooling system component directing coolant into engine block.
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Description

The Cummins Water Inlet Connection (4003278) is a critical component of the engine cooling system, providing a secure pathway for coolant to enter the engine block. It supports temperature regulation by enabling consistent coolant flow, which is essential for maintaining engine performance and preventing overheating in commercial vehicle applications.

Key Specifications

  • Application: Tier 3 6B5.9, QSB6.7 CM2250, CM850, CM2850 engines
  • Function: Directs coolant flow into engine block
  • Compatibility: Cummins 6B5.9, QSB6.7 series
  • Construction: Corrosion-resistant metal alloy
  • Features: Leak-resistant seal, secure fit, 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# 4003278
Type OEM
Part# variations 4003278 CUM,
4003278CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty