Fuel Lift Pump 3936316 for Cummins 6BT 5.9L 6CT 8.3L
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Make / Application | Models / Engines | Fitment Notes |
|---|---|---|
| Cummins | 6BT 5.9L | Includes many mechanical-injection applications; verify pump number. |
| Cummins | 6CT 8.3L | Verify mounting and fuel-line connections. |
| Dodge Ram | 1994-1998 5.9L Cummins applications | Confirm 3936316 before ordering. |
Product Overview
The fuel lift pump supplies fuel to the engine or injection system at the low-pressure side of the fuel circuit. A weak lift pump can cause extended cranking, fuel starvation under load, loss of power, or difficulty keeping the injection pump supplied.
This part is a practical repair choice when the original component is worn or failed and the machine is showing problems such as extended cranking or loss of fuel prime, weak fuel delivery under load, intermittent engine shutdown from fuel starvation. Confirming the part number and application before installation helps avoid ordering a visually similar component that uses a different configuration.
Key Features & Performance
- Restores low-pressure fuel delivery to the engine or injection system
- Useful when the original pump is weak, leaking or inoperative
- Matches the listed application and reference-number family
- Check fuel-line connections and mounting before installation
Technical Specifications
- Function: Low-pressure fuel supply / lift pump
OE / Reference Numbers
- 3936316
Common Reasons for Replacement
- Extended cranking or loss of fuel prime
- Weak fuel delivery under load
- Intermittent engine shutdown from fuel starvation
- Pump leakage or complete electrical/mechanical failure
Frequently Asked Questions
How do I confirm fitment?
The original title incorrectly paired 6CT with 5.9L; the 6BT is the 5.9L family while the 6CT is the larger 8.3L family.
Is this an OEM part?
This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.