Features & Benefits:

Direct replacement for faulty DEF sensor – restores accurate DEF level/quality monitoring

 Prevents DEF-related check engine lights, limp mode, or derate conditions

High-reliability construction for heavy-duty truck use

Package Includes:

1 × DEF Sensor Assembly (as pictured)

Part Number / OEM References:

8-98273-439-1

Supersessions: 8-98273-439-0, 8-98273-439-2, 8982734391, 98273439

Fitment:
Model     Year
Isuzu NPR-HD DIESEL 4HK1-TCN (RDQ) DOUBLE CAB    2011, 2012, 2013
Isuzu NPR-HD DIESEL 4HK1-TCN (RDQ) SINGLE CAB    2011, 2012, 2013
Isuzu NPR-HD DIESEL 4HK1-TCS (RJS) CREW CAB    2024, 2025
Isuzu NPR-HD DIESEL 4HK1-TCS (RJS) DOUBLE CAB    2011-2023
Isuzu NPR-HD DIESEL 4HK1-TCS (RJS) SINGLE CAB    2011-2025
Isuzu NPR-XD DIESEL 4HK1-TCS (RJS) CREW CAB    2024, 2025
Isuzu NPR-XD DIESEL 4HK1-TCS (RJS) DOUBLE CAB    2015-2023
Isuzu NPR-XD DIESEL 4HK1-TCS (RJS) SINGLE CAB    2015-2025
Isuzu NQR DIESEL 4HK1-TCN (RDQ) DOUBLE CAB AND SUPERLONG CHASSIS    2011, 2012, 2013
Isuzu NQR DIESEL 4HK1-TCN (RDQ) SINGLE CAB AND SUPERLONG CHASSIS    2011, 2012, 2013
Isuzu NQR DIESEL 4HK1-TCS (RJS) DOUBLE CAB AND SUPERLONG CHASSIS    2011-2023
Isuzu NQR DIESEL 4HK1-TCS (RJS) SINGLE CAB AND SUPERLONG CHASSIS    2011-2023
Isuzu NRR DIESEL 4HK1-TCN (RDQ) DOUBLE CAB AND SUPERLONG CHASSIS    2011, 2012, 2013
Isuzu NRR DIESEL 4HK1-TCN (RDQ) SINGLE CAB AND SUPERLONG CHASSIS    2011, 2012, 2013
Isuzu NRR DIESEL 4HK1-TCS (RJS) CREW CAB    2024, 2025
Isuzu NRR DIESEL 4HK1-TCS (RJS) DOUBLE CAB AND SUPERLONG CHASSIS    2011-2023
Isuzu NRR DIESEL 4HK1-TCS (RJS) SINGLE CAB    2024, 2025
Isuzu NRR DIESEL 4HK1-TCS (RJS) SINGLE CAB AND SUPERLONG CHASSIS    2011-2023