Isuzu NQR 2011-2023 Diesel Oxidation Catalyst (DOC)

Product Applications


Year Model Displacement Engine
2011 NQR 5.2L I4 4HK1
2012 NQR 5.2L I4 4HK1
2013 NQR 5.2L I4 4HK1
2014 NQR 5.2L I4 4HK1
2015 NQR 5.2L I4 4HK1
2016 NQR 5.2L I4 4HK1
2017 NQR 5.2L I4 4HK1
2018 NQR 5.2L I4 4HK1
2019 NQR 5.2L I4 4HK1
2020 NQR 5.2L I4 4HK1
2021 NQR 5.2L I4 4HK1
2022 NQR 5.2L I4 4HK1
2023 NQR 5.2L I4 4HK1

Interchange Part Number(s)

8-98204-940-1 8 98204 940 1 8982049401
8-98204-940-0 8 98204 940 0 8982049400
8-98155-139-0 8 98155 139 0 8981551390
8-98155-139-1 8 98155 139 1 8981551391
8-98155-139 8 98155 139 898155139
98155139 98204940  

-For off road use only in California and New York

WL-1031US Product Description


All W&L Inc parts are made to exact OEM specifications, are direct bolt-on replacement parts and do not require any modifications. Stock mounting locations are retained and catalyst components meet or exceed OEM quality standards. W&L parts are also made to meet, and or exceed, all 50 State USA Original Equipment USDM vehicle emission specifications. Although not included with orders, all parts are compatible with OEM gaskets and hardware.

Our manufacturer, JMJ-Poland, is ISO9001, 9002 and TUV SUD certified and has in house engineers and machinists that make our catalysts and DPFs only from European sourced materials. W&L parts are put through rigorous lab and road tests. With proper maintenance they meet OEM and manufacturer specifications and reliability.

NOT REMANUFACTURED – NEW, Made in Poland E.U., for USA specification vehicles

In stock


Warranty Information

W & L Incorporated Catalytic Converters, Diesel Particulate Filters (DPF), and Selective Catalytic Reduction (SCR) parts proudly meet EPA warranty requirements which has a 5 year or 50,000 mile warranty on the external shell and end-pipes. Our parts also meet EPA emissions performance standards for 2 years or 25,000 miles when the vehicle is properly used and maintained.

Examples of conditions that will void the manufacturers warranty:

-Physical/road damage
-Engine Misfire
-Exhaust Contamination

Additional information

Dimensions 18 × 12 × 12 in
Vehicle Make



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