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

Based on OEM Hyundai/Kia EPC listings and verified aftermarket catalogs, part number 29640-2F170 (SNS0847A) is used in Hyundai/Kia Euro 6 diesel SCR (AdBlue) systems, mainly on 2.0 CRDi SUV platforms (Santa Fe / Sorento generation depending on market configuration).

Common system applications include:

• Hyundai Santa Fe IV (TM/TMA) 2.0 CRDi Euro 6 SCR
• Kia Sorento III (UM) 2.0 CRDi / 2.2 CRDi SCR variants
• Hyundai/Kia shared 2.0 CRDi SCR diesel architecture

Fitment is strictly based on OE number matching:
29640-2F170 / SNS0847A / A3C01628700-01

OE cross-reference data confirms this is a Continental SNS0847A NOx sensor used on Hyundai Santa Fe and Kia Sorento Euro 6 SCR diesel systems, often listed as a direct replacement sensor within the same SCR sensor family.

Aftermarket EPC listings also consistently map this part number to Hyundai/Kia SCR NOx sensor applications in Santa Fe / Sorento diesel platforms.

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 SNS0847A module is designed for high-temperature exhaust environments and provides continuous emissions feedback for SCR dosing control and catalyst efficiency monitoring.

Symptoms / Fault Codes

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

OE / Part Numbers

• 29640-2F170
• SNS0847A
• A3C01628700-01
• Hyundai / Kia SCR NOx sensor family (Santa Fe / Sorento platform)

FAQ

Is this sensor vehicle-specific?

Yes. Hyundai/Kia NOx sensors are ECU-calibrated. Even close OE variants (2F170 / 2F150 / 2F140) can differ in connector shape, calibration, or mounting position.

Why do Santa Fe and Sorento share this sensor?

Because both use the same Hyundai/Kia 2.0 CRDi Euro 6 SCR diesel architecture, so emission components are shared.

Can similar OE numbers be used instead?

Not recommended. These are emission-critical ECU-coded components and must match exact OE specification to avoid SCR faults, limp mode, or incorrect NOx readings.