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

Based on OEM Hyundai/Kia EPC cross-reference data and verified aftermarket SCR catalogs, part number 29640-2FRE0 (SNS0814A) is used in Hyundai/Kia Euro 6 diesel SCR (AdBlue) systems, mainly on 2.0 CRDi SUV platforms (Santa Fe / Sorento generation depending on exhaust configuration and market calibration).

Confirmed applications include:

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

Fitment is strictly based on OE number matching:
29640-2FRE0 / SNS0814A

📌 Verified cross-reference evidence:

• Aftermarket EPC listings confirm 29640-2FRE0 ↔ SNS0814A NOx sensor used on Hyundai Santa Fe / Kia Sorento 2.0 CRDi SCR systems (Euro 6)
• Same SCR sensor family is listed alongside closely related Hyundai/Kia NOx variants (29640-2F150 / 2F140 series), confirming shared platform architecture

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 SNS0814A module is typically used in 2.0 CRDi SCR systems, monitoring NOx levels either upstream or downstream of the SCR catalyst depending on vehicle configuration.

Symptoms / Fault Codes

• Check engine light
• SCR / AdBlue system warning
• NOx sensor communication or signal fault
• P2200 / P229F / U029D type codes (platform dependent)
• Reduced engine power (limp mode)
• Increased emissions

OE / Part Numbers

• 29640-2FRE0
• SNS0814A
• Hyundai/Kia SCR NOx sensor family (2.0 CRDi platform group)
• 296402FRE0 (catalog variant format)

FAQ

Is this sensor vehicle-specific?

Yes. Hyundai/Kia NOx sensors are ECU-calibrated. Even close variants (2F150 / 2FRE0 / 2FRC0 etc.) can differ in connector type, cable length, or ECU mapping.

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.