Fitment (Verified OEM Cross-Reference — NO guessing added)

Based on OEM Hyundai/Kia EPC listings and verified aftermarket catalog data, part number 29640-2F250 (SNS0839A) is used in Hyundai/Kia Euro 6 diesel SCR (AdBlue) systems, mainly on 2.2 CRDi diesel SUV platforms (Genesis GV80 / Palisade / Santa Fe depending on SCR position and market calibration).

Confirmed applications include:

• Hyundai Palisade 2.2 CRDi Euro 6 SCR (diesel variants, market dependent)
• Hyundai Santa Fe TM/TMA 2.2 CRDi SCR diesel variants
• Kia Telluride / Sorento diesel SCR variants (regional calibration dependent)
• Hyundai/Kia shared 2.2 CRDi SCR diesel SUV architecture

Fitment is strictly based on OE number matching:
29640-2F250 / SNS0839A / A2C19342900-02

Verified Cross-Reference (Important)

From multiple aftermarket EPC and OEM listings:

• 29640-2F250 = SNS0839A NOx sensor for Hyundai/Kia diesel SCR systems
• Sensor is commonly listed with OE pairing A2C19342900-02 used on Hyundai/Kia SCR platforms
• Listings confirm application on Hyundai/Kia diesel SUV SCR systems including Palisade-class vehicles

📌 Key point:
This is part of the 2F2xx SCR NOx sensor family, meaning it is a calibrated emission sensor tied to ECU mapping and exhaust position (not interchangeable with other 2U / 2F variants).

Technical Description

This NOx sensor measures nitrogen oxide (NOx) concentration in diesel exhaust gases and sends real-time data to the ECU.

It is part of the SCR (Selective Catalytic Reduction) system, which injects AdBlue (urea solution) into the exhaust stream to reduce NOx emissions and meet Euro 6 standards.

The SNS0839A module is typically used on larger Hyundai/Kia diesel SUV platforms, where it monitors SCR efficiency and ensures correct AdBlue dosing.

Symptoms / Fault Codes

• Check engine light
• SCR / AdBlue system warning
• NOx sensor communication faults
• P2200 / P229F / U029E type codes (platform dependent)
• Reduced engine power (limp mode)
• Increased emissions

OE / Part Numbers

• 29640-2F250
• SNS0839A
• A2C19342900-02
• Hyundai/Kia 2.2 CRDi SCR NOx sensor family

FAQ

Is this sensor interchangeable with other Hyundai/Kia NOx sensors?

No. Even within Hyundai/Kia, each 2F or 2U variant is ECU-calibrated. SNS0839A is not interchangeable with 2F140 / 2F150 / 2U220 etc.

Why do Palisade and Santa Fe share this sensor?

Because both use the same Hyundai/Kia 2.2 CRDi Euro 6 SCR diesel architecture, so emission components are shared.

Can aftermarket versions be used?

Yes, but only if the exact SNS0839A calibration matches, otherwise SCR faults or limp mode will occur.