4025097RX - Genuine Cummins Water Pump for ISX/QSX - 1 - wisentpartscenter.com

Description

Cummins 3680344 Water Pump - Genuine Cummins Water Pump for ISX / QSX Engines

The Cummins 3680344 is a genuine Cummins water pump for the ISX/QSX15 (15L). It circulates coolant through the engine to hold operating temperature. One-piece assembly with the drive pulley.

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

Purpose of the Part

It moves the coolant. Belt-driven off the engine, it pumps coolant through the block, head, and radiator to carry heat away. When the seal or bearing goes, it either leaks coolant or stops pumping - and the engine overheats.

Issue Symptoms / When to Replace

- Coolant leak at the weep hole - the classic seal failure
- Overheating or coolant loss
- Bearing whine, growl, or shaft play / wobbling pulley
- Belt issues from a seized or dragging pump

Brand Information

A genuine Cummins 3680344 is built to the ISX/QSX cooling spec - correct pulley, flow, and seal - so it holds temperature and seals reliably in a high-heat 15L application where a failed pump means an overheat. Cummins builds engines, cooling, and power systems worldwide.

Installation Notes

Match the pulley (groove/rib count) and EGR configuration to your engine - this is where ISX water pump orders go wrong. Confirm by engine serial or VIN.

How to Identify an OEM Part

Genuine Cummins pumps have the part number cast/stamped into the body - match it to your listing.

Why buy 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.