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

Based on OEM Hyundai/Kia EPC cross-reference listings and Hyundai/Kia SCR sensor family mapping, part number 29650-4C200 is used in Hyundai/Kia Euro 6 diesel SCR (AdBlue) systems, mainly on 2.2 CRDi diesel SUV platforms (Santa Fe / Sorento generation depending on emission calibration and market).

Common system applications include:

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

Fitment is strictly based on OE number matching:
29650-4C200

OE cross-reference data confirms this NOx sensor belongs to the Hyundai/Kia SCR NOx sensor family used on 2.2 CRDi platforms, often positioned as a revised variant within the same emission system group as 2F / 4C SCR sensor families. (Hyundai/Kia EPC aftermarket listings and sensor-family catalogs confirm platform-level interchange.)

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 sensor operates under high-temperature exhaust conditions and continuously monitors emissions efficiency for SCR dosing and catalyst performance control.

Symptoms / Fault Codes

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

OE / Part Numbers

• 29650-4C200
• Hyundai / Kia SCR NOx sensor family (2.2 CRDi platform group)
• Related SNS family variants depending on supplier revision

FAQ

Is this sensor vehicle-specific?

Yes. Hyundai/Kia NOx sensors are ECU-calibrated. Even close OE variants (2U / 4C / 2F series) can differ in connector type, software mapping, or exhaust position.

Why do Santa Fe and Sorento share this sensor?

Because both use the same Hyundai/Kia 2.2 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.