12V Fuel Lift Pump Kit With Line 4988747 3936316 for Cummins Engine 6BT 5.9L Dodge Ram Pickup Truck 2500 3500 1994-1998
This fuel pump is engineered as a direct replacement for the Cummins Engine 6BT 5.9L Dodge Ram Pickup Truck 2500 3500 1994-1998. Manufactured to meet or exceed OEM specifications, it delivers reliable performance in demanding conditions. Each unit is tested for fuel flow, pressure rating, and durability before leaving the factory to ensure consistent quality across every order.
Vehicle Compatibility
| Application | Details |
|---|---|
| Cummins Engine 6BT | See product specifications |
| Dodge Ram Pickup Truck 2500 3500 5.9L 1994 | 1998 Replace Part Number:4988747, 3936316, 3933252, 3933260, 3936324, 4944710, 3936320, 3933256, 4988751, 4944714, 3283702, 4761979, 3914284, 3918880, 3914304, 3904044, 3931059, 3931348, 3923054 Fit for |
| Cummins Engine: 6BT Application:Fit for following models:1994 | 1998 |
| Dodge Ram 2500 Base Cab & Chassis 2 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1995-1998 |
| Dodge Ram 2500 Base Extended Cab Pickup 2 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1998 |
| Dodge Ram 2500 Base Extended Cab Pickup 4 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1994-1998 |
| Dodge Ram 2500 Base Standard Cab Pickup 2 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1994-1998 |
| Dodge Ram 3500 Base Cab & Chassis 2 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1995-1997 |
| Dodge Ram 3500 Base Extended Cab Pickup 2 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1998 |
| Dodge Ram 3500 Base Extended Cab Pickup 4 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1994-1998 |
| Dodge Ram 3500 Base Standard Cab Pickup 2 | Door 5.9L 359Cu. In. l6 DIESEL OHV Turbocharged1994-1997 |
| Ford CF7000 Base 5.9L 359Cu. In. l6 DIESEL Turbocharged1994 | 1996 |
Replaces OEM Part Numbers
4988747 • 3936316 • 3933252 • 3933260 • 3936324 • 4944710 • 3936320 • 3933256 • 4988751 • 4944714 • 3283702 • 4761979
Signs You Need a Replacement
If your equipment is showing any of these symptoms, the fuel pump may be the cause:
- Engine cranks but won’t start — The pump may have lost prime or stopped delivering fuel. Check for fuel at the filter outlet before replacing the pump.
- Stalling under load — A weak pump can’t maintain pressure at high demand. The engine runs fine at idle but dies when you put it to work.
- Fuel pressure warning (if equipped) — Modern Cummins equipment monitors fuel rail pressure. A low-pressure warning often means the pump is failing.
- Loud whining from fuel system — A failing pump makes a high-pitched whine that gets louder as it warms up. Normal pump noise is a low hum.
- Air in fuel lines — If you see bubbles in the transparent fuel line or the primer bulb won’t stay firm, the pump may be drawing air through a worn seal.
- Excessive return flow — Too much fuel returning to the tank instead of reaching the injectors indicates internal pump wear.
Before You Replace the Pump
Before replacing the pump, check the fuel filter and fuel lines for restrictions. A blocked filter causes the same symptoms as a failing pump on Cummins equipment. When installing the new pump, fill it with clean fuel before connecting the lines — this reduces priming time and prevents dry-run damage. After installation, bleed the system fully and check for leaks at all connection points. Replace the fuel filter at the same time as the pump to protect the new unit from debris.
Frequently Asked Questions
Will this fit my Cummins 2500?
Yes. This part is designed to fit the Cummins 2500, 3500 among other models listed in the compatibility table above. Verify your specific model and engine code before ordering to ensure the correct fit.
Can I cross-reference 4988747 with 3936316?
Yes. Both 4988747 and 3936316 are interchangeable OEM numbers for this part. They refer to the same component with the same specifications, just different part number revisions.
My engine code is FL50 with a 5.9L displacement – is this the right part?
Yes. Engine code FL50 with 5.9L displacement is within the supported range for this part. The full list of compatible engine codes includes: FL50, FL60. Confirm your engine code on the data plate attached to the engine block.
My vehicle is a 1994 model – is it covered?
The compatibility range for this part includes 1994-1998. The 1994 model year falls within this range, but verify the engine code and body type match. Mid-year production changes sometimes mean two vehicles from the same model year use different parts.
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