Schrader Valves 29186 Tire Pressure Monitoring System (TPMS) Sensor

Schrader TPMS Sensor 29186 Overview

Schrader Valves 29186 is a direct tire pressure monitoring system sensor built for OE-style replacement on select Saab and Saturn applications. It uses a clamp-in aluminum valve stem, comes pre-programmed, and is supplied with the transmitter, installed nickel-plated valve core, installed plastic cap, and aluminum nut.

Compatible With 2003-2007 Saab 9-3, 2003-2007 Saab 9-5, and 2008-2009 Saturn Astra applications that use a 433.0 MHz TPMS sensor. Schrader 29186 is a fitment-specific replacement for vehicles that require a wheel-mounted direct TPMS sensor.

Key Features

• Direct TPMS sensor for wheel-mounted applications
• Clamp-in aluminum valve stem with silver finish
• Pre-programmed sensor; not programmable
• 433.0 MHz frequency
• Plastic housing with nickel-plated brass core material
• Valve cap, grommets, and mounting hardware included in the package contents
• Recommended torque: 71 in/lbs. or 8 N-m

Detailed Description

Schrader 29186 is engineered as a genuine OE replacement TPMS sensor for vehicles that rely on direct tire pressure monitoring. Schrader is a long-standing OE supplier in tire pressure sensing technology, and this sensor is built to meet OE quality and performance expectations through extensive testing, including high-speed and extreme-temperature validation. For Saab 9-3, Saab 9-5, and Saturn Astra TPMS service, this part number provides a direct replacement path when the original sensor has failed, lost communication, or triggered a warning light.

This part cross-references DENSO Auto Parts 550-2904 and Dorman - OE Solutions 974-030 for the same application. Schrader 29186 is also identified by interchange references including 921032C, 13172567, and TPM79.

What It Helps Fix

• TPMS warning light illuminated on the dash
• Loss of tire pressure sensor communication
• Failed or aging original wheel sensor
• Incorrect tire pressure readings from a damaged sensor
• Service issues after wheel or tire replacement on direct TPMS systems

Installation Notes

TPMS sensor service is not a DIY task for most vehicles and requires the proper tools, knowledge, and diagnostic equipment. After installation, a vehicle-specific relearn procedure must be completed using a TPMS programming and diagnostic tool with OBD capability. Follow the recommended torque specification for the clamp-in hardware and verify sensor activation before returning the vehicle to service.

Fits 2003-2007 Saab 9-3, N/A. Fits 2003-2007 Saab 9-5, N/A. Fits 2008-2009 Saturn Astra, N/A.

Quality Assurance

Schrader is a global OE supplier of tire pressure monitoring systems, and the 29186 sensor is backed by a 2-year manufacturer warranty. OE-style construction, pre-programmed operation, and validated testing support consistent performance in direct TPMS applications.