Skip to product information
12_fd2d2cef-4579-4de0-9833-95082b6f66e9 - Northline Parts

Fuel Lift Pump 3936316 for Cummins 6BT 5.9L 6CT 8.3L

SKU: NLT2T03434
$78.39 In Stock
$78.39
Sale price  $78.39 Regular price 
Ships for free in 2–4 business days.
This replacement fuel lift pump is for Cummins 6BT 5.9L and 6CT 8.3L diesel fuel systems using 3936316.
Estimated delivery between
Shop at Northline Parts Best Customer Service Best Online Parts

Let Northline Parts Do the Heavy Lifting for You!

Not sure which part you need? Our team can help you find the right replacement.

Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT

Live Chat: Available 24/7

I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

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.

Compatible equipment / model
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.

Customers also purchased