Tire Pressure Monitoring Sensor Replacement OE Part Number: 28103SA001 Package: Pack of 1 Product overview This replacement TPMS sensor monitors tire pressure and reports realtime pressure information to the vehicle system. It is a directfit replacement for the listed vehicle applications and helps restore reliable tire pressure monitoring when the original sensor has failed or reached end of service life. Key benefits Restores TPMS function so the vehicle can detect low tire pressure and alert the driver. Helps reduce the chance of increased fuel consumption and uneven tire wear caused by underinflation. Directfit design for proper mounting and no air leaks when installed correctly. Simple replacement option when the vehicle displays a TPMS warning or when sensors reach end of battery life. Features and specifications OE replacement part number: 28103SA001 Package contents: 1 TPMS sensor Function: Wireless tire pressure and temperature sensing for vehicle TPMS systems Durability: Built for regular road use and designed for reliable operation over typical service life Battery life: Typical sensor battery life is between 5 and 10 years; sensors when battery depletion affects performance Compatibility: Verify OE number and vehicle year/model before Compatible vehicle applications (verify fitment before installation) 20082016 Impreza 4door 2.0L 20082014 Impreza 4door 2.5L 20082009 Legacy 4door 2.0L 20082017 Legacy 4door 2.5L 20082009 Legacy 4door 3.0L 20102017 Legacy 4door 3.6L 20082017 Outback 4door 2.5L 20082009 Outback 4door 3.0L 20102017 Outback 4door 3.6L 20082014 Tribeca 4door 3.6L 20152017 WRX 4door 2.0L 20152016 WRX 4door 2.5L 2016 WRX STI 4door 2.5L When to TPMS warning light stays on or flashes Noticeable increase in driving resistance or reduced engine power Increased fuel consumption related to tire pressure issues Excessive or uneven tire tread wear on both sides of the tire Sensor battery age approaching 5 to 10 years Typical applications and use scenarios Routine maintenance: sensors during tire service or when batteries near end of life to maintain accurate monitoring. After tire or wheel replacement: Fit or remounted wheels with a compatible sensor to ensure the TPMS system functions correctly. Troubleshooting TPMS alerts: Swap a suspected faulty sensor with this OEcompatible replacement to restore normal system behavior. Installation notes Confirm the OE part number and vehicle year/model before . Proper installation and matching to the vehicle TPMS system are required for correct operation. Professional installation is recommended if unsure about programming or sensor matching. This replacement TPMS sensor is intended for the vehicle applications listed above. Check compatibility and OE number 28103SA001 before ordering.