wp20535 - Genuine Cummins Diesel Particulate Filter (DPF) for ISB - 1 - wisentpartscenter.com

Description

Cummins 5295603NX Diesel Particulate Filter - Genuine Cummins DPF for ISB Engines

The Cummins 5295603NX is a genuine Cummins diesel particulate filter for the ISB (ISB6.7). It traps and oxidizes soot from the exhaust, then burns it off to ash during regeneration to keep the aftertreatment flowing and emissions in spec.

Key Functions:

- Traps and oxidizes diesel soot from the exhaust stream
- Regenerates to burn trapped soot down to ash

Fitment & Specifications:

- Application: Cummins ISB (ISB6.7) - confirm EPA level and config by engine serial or VIN
- Cummins OEM numbers: 5295603 / 5579367
- Crosses: 4033900C91 (International), C0161-SA / C17-0091 (aftermarket)

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

Purpose of the Part

It's the soot trap. Exhaust passes through the filter walls, soot stays behind, and the system periodically burns it off during regen. When it's cracked, plugged solid, or won't regen, backpressure climbs and the engine throws faults and derates.

Issue Symptoms / When to Replace

- DPF / high exhaust backpressure fault codes
- Frequent or incomplete regens, derate
- Plugged filter that won't clean out
- Cracked or melted substrate from an uncontrolled regen

Brand Information

A genuine Cummins 5295603NX DPF is built to the exact substrate, washcoat, and canister spec the ISB aftertreatment needs to trap soot, regen cleanly, and hold emissions - where cheap filters crack or plug early. Cummins builds engines, aftertreatment, and power systems worldwide.

Installation Notes

- Find the root cause before fitting a new DPF. These plug or fail because of upstream problems - injectors, EGR, dosing, or failed regens - and a new filter on an unfixed system clogs right back up.
- Use a new gasket and clamp on clean, flat sealing faces.
- Reset the soot/ash load in the ECM with INSITE after replacement, per the service procedure.

How to Identify an OEM Part

- Genuine Cummins DPFs carry the Cummins part number (5295603 or 5579367) on the unit - match it to your listing.
- If the old unit shows 4033900C91, that's International's number for the same DPF; C0161-SA / C17-0091 are aftermarket numbers - both still cross to this part.

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.