Fuel Injection Pump 3991961

positive OEM
Cummins
Part# 3991961
note
Delivers precise fuel pressure and timing for diesel engine combustion.
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Extended Lead Time
non-returnable Non-returnable info
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Description

The Cummins Fuel Injection Pump (3991961) is a critical component in diesel engine fuel systems, responsible for delivering fuel at controlled pressure and timing to support combustion. It regulates fuel flow to optimize engine operation, efficiency, and emissions control in heavy-duty applications.

Key Specifications

  • Application: Cummins 4B3.9 engine series
  • Function: Pressurizes and delivers fuel to engine cylinders
  • Compatibility: Cummins 4B3.9, 4BT3.9 engines
  • Construction: Metal housing with precision-machined internal components
  • Features: Precise injection timing, advanced sealing mechanisms, high-pressure fuel delivery
  • Quality: OEM Cummins part

Shipping Info

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More Information

Current Part# 3991961
Type OEM
Part# variations 3991961 CUM,
3991961CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty