Air Fuel Control Tube 3991514

positive OEM
Cummins
Part# 3991514
note
OLD# 3934604
Controls air and fuel mixture flow for engine combustion efficiency.
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Description

The Cummins Air Fuel Control Tube (3991514) is a critical engine component that regulates the air and fuel mixture delivered to the combustion system. It functions as a conduit within the air-fuel control system to maintain proper mixture ratios, supporting efficient engine operation and combustion stability.

Key Specifications

  • Application: 4B3.9, 6B5.9, 6C8.3 engines
  • Function: Regulates air-fuel mixture delivery
  • Compatibility: Cummins B series engines
  • Construction: Metal tubing with corrosion-resistant finish
  • Features: Direct-fit design, integrates with ECU controls
  • 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# 3991514
Old Part No.: 3934604
Type OEM
Part# variations 3991514 CUM,
3991514CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty