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

Based on OEM Hyundai/Kia EPC references and Continental SNS3100/SNS family cross-mapping, part number 29650-4C100 is used in Hyundai/Kia diesel SCR (AdBlue) systems, mainly on commercial diesel and light truck platforms (Euro 6 / heavy-duty applications depending on market).

Common system applications include:

• Hyundai Porter / H-100 / H-1 (Starex) diesel SCR variants
• Kia commercial diesel platforms (region-dependent SCR systems)
• Hyundai light truck / van diesel SCR configurations
• Selected Hyundai/Kia Euro 6 diesel utility vehicles

Fitment is strictly based on OE number matching:
29650-4C100

OE cross-reference data confirms this Hyundai/Kia NOx sensor is part of the Continental SNS3100-series SCR sensor architecture used on Hyundai commercial diesel platforms.

Related Hyundai/Kia NOx sensor families (same architecture range) use similar numbering such as 29650-4A100 / 29650-4A200, confirming platform-level interchange within SCR systems.

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 provides continuous emissions feedback for SCR dosing control.

Symptoms / Fault Codes

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

OE / Part Numbers

• 29650-4C100
• SNS3100 family (Continental)
• A3C0xxxx / AAA9054970000 series (platform-dependent equivalents)

FAQ

Is this sensor vehicle-specific?

Yes. Hyundai/Kia NOx sensors are ECU-calibrated. Even small differences (4C100 vs 4A100 vs 4A200) can change calibration, connector shape, or ECU compatibility.

Why do Hyundai and Kia share parts?

Because both brands use shared diesel SCR architectures and engines across commercial and light-duty platforms.

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.