Buy wp20401 - Genuine Cummins 12V Fuel Transfer Pump - 2 - wisentpartscenter.com

Description

Genuine Cummins 4935007 12V Fuel Transfer Pump supplies low-pressure diesel fuel to the engine’s injection system. It pulls fuel through the supply side and keeps the injection pump fed with a steady volume of fuel, which is especially important during starting and when the engine is working under load.

Key Functions
- Supplies low-pressure fuel to the engine’s injection system.
- Helps prime and maintain fuel flow during starting and operation.
- Prevents the injection system from being starved when fuel demand increases.

Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

The 4935007 keeps fuel moving from the supply side of the system to the injection equipment at the pressure and volume needed for normal engine operation. It is a low-pressure supply pump, not the high-pressure injection pump that meters and delivers fuel to the cylinders.

Issue Symptoms / When to Replace

A weak or failed transfer pump can cause extended cranking, hard starting, hesitation, loss of power under load, intermittent stalling, or low fuel-supply pressure. If the electric pump does not run, the wiring and power supply should also be checked. A restricted fuel filter, air leak in the supply line, or tank pickup problem can create many of the same symptoms.

Brand Information

Cummins was founded in Columbus, Indiana in 1919 and today designs and manufactures diesel, natural-gas, electric, and hybrid powertrains along with related components. Fuel systems are one of Cummins’ core component areas, covering the pumps, controls, and delivery hardware needed to supply fuel correctly to its engine platforms.

Installation Notes

Disconnect the negative battery cable before unplugging the 12V pump, and cap open fuel lines immediately during replacement to keep dirt out of the fuel system.

How to Identify an OEM Part

Confirm 4935007 by the Cummins part number on the pump assembly or original Cummins factory label.

Why Buy 4935007 from Wisent Parts

  • ⏱️
    Fast shipping
    Orders before 12PM EST ship same business day.
  • 🛡️
    180-day warranty
    All parts covered from delivery date.
  • ↩️
    Easy returns
    30-day returns.
  • ✅
    Verify fitment
    Send VIN/ESN and we’ll confirm.

Shop with confidence

Warranty & Return Information
Warranty Information

Wisent Parts offers a 180-day warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.