Skip to product information
1 of 3

Cummins 4988749 Fuel Transfer Pump | Fits ISC 8.3L 6C 8.3L

Cummins 4988749 Fuel Transfer Pump | Fits ISC 8.3L 6C 8.3L

In Stock & Ready for Global Express Dispatch

Request a Quick Quote

✓ Premium Cummins OEM Quality Spec  |  ✓ 100% Direct Fit  |  ✓ Fast Global Shipping

Premium fuel transfer pump designed as a direct OEM-compatible replacement for Cummins ISC 8.3L and 6C 8.3L series diesel engines. Engineered to provide precise fuel delivery pressure, prevent fuel starvation, and maintain uninterrupted fuel flow from the tank to the high-pressure injection system under demanding heavy-duty operating conditions.

Product Highlights

  • Part Number: Cummins 4988749 / 498-8749
  • Direct Fit Engine Replacement: Precisely manufactured to OEM specifications for seamless drop-in installation on Cummins 8.3L engines.
  • Heavy-Duty Mechanical Design: Built with high-strength wear-resistant internal gears and heavy-duty seals to withstand high continuous thermal and vibration loads.
  • Consistent Fuel Pressure: Delivers steady, calibrated fuel flow to maintain optimal combustion efficiency, prevent power loss, and reduce engine wear.

Technical Specifications

Parameter Specification
Part Number 4988749 / 498-8749
Engine Brand Cummins
Engine Compatibility Cummins ISC 8.3L, 6C 8.3L, 6CT 8.3L, 6CTA 8.3L, QSC 8.3L
Product Type Engine Mechanical Fuel Transfer Pump / Lift Pump
Application Diesel Fuel Supply System
Warranty 12 Months Warranty

Compatible Engine Models & Equipment

This premium fuel transfer pump is precision-engineered for the following Cummins diesel engine platforms:

  • Cummins 8.3L Engine Series: ISC 8.3L, 6C 8.3L, 6CT 8.3L, 6CTA 8.3L, QSC 8.3L
  • Equipment Applications: Widely used in heavy-duty commercial trucks, construction excavators, wheel loaders, industrial power units, and agricultural machinery powered by Cummins 8.3L engines.

Key Applications

  • Fuel Feed System Maintenance: Transfers low-pressure fuel efficiently from the supply tank to the primary injection pump.
  • Engine Performance Restoration: Eliminates engine misfires, hard starting, power drops, and stalling caused by low fuel delivery pressure.
  • System Component Protection: Maintains adequate lubricated fuel supply to safeguard precision fuel injectors and high-pressure fuel pumps.

Why Choose Our Cummins Replacement Fuel Pumps?

  • Strict Quality Control: Manufactured in ISO 9001-certified facilities and 100% flow-tested before factory release.
  • Cost-Effective OEM Alternative: Delivers original-equipment fit, durability, and hydraulic performance at competitive aftermarket prices.
  • Immediate Global Dispatch: In stock and ready for immediate international express shipment to minimize equipment downtime.
  • Comprehensive Support: Backed by a full 12-month warranty and technical support from engine component specialists.

Frequently Asked Questions (FAQ)

Q: Is this fuel transfer pump a direct replacement for Cummins part number 4988749?

A: Yes, this is a 100% direct-fit replacement fuel pump manufactured to match the original mounting holes, inlet/outlet ports, and flow capacity of Cummins 4988749 / 498-8749.

Q: What engine models does this pump fit?

A: It is engineered specifically for Cummins 8.3L engine family models, including ISC 8.3L, 6C 8.3L, 6CT 8.3L, 6CTA 8.3L, and QSC 8.3L.

Q: What are the common symptoms of a failing fuel transfer pump?

A: Common indicators include engine hard starting, loss of horsepower under load, erratic idle, or complete engine fuel starvation.

Q: What is covered under the 12-month warranty?

A: Our 12-month warranty covers all manufacturing defects, material failures, and operational issues under standard engine operating conditions.


Explore our full range of heavy-duty diesel engine pumps:
View All Fuel Transfer Pumps »

Need a Quote for Cummins 4988749?

Contact us today for stock availability, factory-direct pricing, and express delivery options.

Request a Quote

📧 Request a Quote View full details