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

Based on OEM Hyundai/Kia EPC data and verified aftermarket catalog listings, part number 29660-2U250 (SNS0819B) is used in Hyundai/Kia Euro 6 diesel SCR (AdBlue) systems, mainly on 1.6 CRDi diesel passenger car platforms (Hyundai Tucson / Kia Sportage generation 2018–2022).

Common system applications include:

• Hyundai Tucson TL / TLE (2018–2020) 1.6 CRDi Euro 6 SCR
• Kia Sportage QL / QLE (2019–2022) 1.6 CRDi Euro 6 SCR
• Hyundai/Kia shared 1.6 CRDi SCR diesel architecture

Fitment is strictly based on OE number matching:
29660-2U250 / SNS0819B / A2C17249200-01

Verified cross-reference confirmation

• OEM catalogs and aftermarket EPC listings confirm 29660-2U250 ↔ SNS0819B is used on Tucson Mk3 (TL/TLE) and Sportage IV (QL/QLE) 1.6 diesel SCR systems.
• Additional supplier data confirms same OE mapping: 29660-2U250 / SNS0819A/B family used in Hyundai/Kia SCR exhaust systems (post-SCR monitoring sensor position).

Technical Description

This NOx sensor measures nitrogen oxide (NOx) levels 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 SNS0819B sensor is designed for high-temperature exhaust environments and is typically installed downstream of the SCR catalyst for emissions verification and catalyst efficiency monitoring.

Symptoms / Fault Codes

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

OE / Part Numbers

• 29660-2U250
• SNS0819B
• A2C17249200-01
• Hyundai/Kia SCR NOx sensor family (Tucson / Sportage 1.6 CRDi platforms)
• 296602U250 (catalog format variant)

FAQ

Is this sensor vehicle-specific?

Yes. Hyundai/Kia NOx sensors are ECU-calibrated. Even close variants like 2U200 / 2U250 / 2U260 can differ in connector shape, cable length, or software mapping.

Why do Tucson and Sportage share this sensor?

Because both use the same Hyundai/Kia 1.6 CRDi Euro 6 SCR diesel platform 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.