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

Based on OEM Hyundai/Kia EPC listings and multiple aftermarket catalog confirmations, part number 29640-2F110 (SNS087B) is used in Hyundai/Kia Euro 6 diesel SCR (AdBlue) systems, mainly on diesel passenger car / MPV platforms (Carnival / Sorento / Santa Fe depending on SCR layout and engine calibration).

Common system applications include:

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

Fitment is strictly based on OE number matching:
29640-2F110 / SNS087B

📌 Cross-reference confirmation:

• eBay EPC listings confirm SNS087B as Hyundai/Kia NOx sensor under OE 29640-2F110 used in diesel SCR systems.
• Market listings also show same OE mapping for Kia Carnival 2.2 diesel SCR applications.

This places it in the Hyundai/Kia 2.2 CRDi SCR NOx sensor family, used across multiple large diesel platforms with Euro 6 emissions control.

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 comply with Euro 6 standards.

The SNS087B module is designed for high-temperature exhaust conditions and continuously monitors NOx levels for SCR dosing accuracy and catalyst efficiency control.

Symptoms / Fault Codes

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

OE / Part Numbers

• 29640-2F110
• SNS087B
• Hyundai/Kia SCR NOx sensor family (2.2 CRDi platform group)
• A3C0-series equivalent aftermarket reference (varies by supplier batch)

FAQ

Is this sensor vehicle-specific?

Yes. Hyundai/Kia NOx sensors are ECU-calibrated. Even close variants like 2F110 / 2F140 / 2F170 / 2F260 can differ in connector type, calibration, or exhaust position.

Why do Santa Fe, Sorento, and Carnival share this sensor?

Because they share the same Hyundai/Kia 2.2 CRDi Euro 6 SCR diesel architecture, so emission components are often interchangeable within the same sensor family.

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.