Schrader Valves 29181 Tire Pressure Monitoring System (TPMS) Sensor
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Schrader Valves

Schrader Valves 29181 Tire Pressure Monitoring System (TPMS) Sensor

Brand Schrader Valves 29181
Material Aluminum
Power Source Battery
Activation Type Pre-programmed, programmable
Monitor Type Direct
Real Time Pressure Signal Transmission Yes
Mounting Method Clamp-in
Mounting Hardware Included Yes
Valve Color Silver
Frequency 315
Housing Material Plastic
Manufacturer Warranty 1 year
Package Contents Transmitter, ni plated valve core (installed), plastic cap (insta
Package Quantity 1
Fits Buick, Cadillac, Chevrolet, GMC, Isuzu, and Saab · 52 vehicles

Direct TPMS sensor. Monitors tire pressure in real time for accurate readings.

Clamp-in design. Includes installed valve core, cap, and aluminum nut.

Pre-programmed and programmable. Flexible activation supports setup and service.

Cross-references 25774006 and 8257740060 for the same application. See all 2.

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Not what you need? See all Tire Pressure Monitoring System (TPMS) Sensor options

Schrader 29181 TPMS Sensor Overview

Schrader Valves 29181 is a direct tire pressure monitoring system sensor built for vehicles that use a 315 MHz signal and clamp-in mounting. It combines an aluminum valve stem with a plastic housing, battery power, and real-time pressure signal transmission for accurate TPMS communication.

Compatible With Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Isuzu Ascender, Buick Rainier, Cadillac CTS, Cadillac SRX, Chevrolet SSR, Chevrolet Trailblazer EXT, and GMC Envoy XL applications that call for a 315 MHz direct TPMS sensor. Schrader 29181 is also a direct replacement for OE-style service needs on these platforms.

Key Features

  • Direct TPMS sensor with real-time pressure signal transmission
  • 315 MHz frequency for supported GM and related applications
  • Clamp-in design with aluminum valve stem and silver valve color
  • Battery-powered sensor with pre-programmed and programmable activation
  • Plastic housing with installed nickel-plated valve core and plastic cap
  • Includes mounting hardware and uses a direct monitoring system
  • Manufacturer warranty: 1 year

Detailed Product Description

Schrader Valves 29181 is a tire pressure monitoring system sensor engineered for direct TPMS setups that require a 315 MHz transmitter. The clamp-in aluminum valve construction supports secure wheel mounting, while the battery-powered sensor sends pressure data in real time to the vehicle’s monitoring system. This part number is commonly used across Chevrolet Trailblazer, GMC Envoy, and related GM applications, including Saab 9-7x, Isuzu Ascender, Buick Rainier, Cadillac CTS, Cadillac SRX, Chevrolet SSR, Trailblazer EXT, and Envoy XL.

This part cross-references OE numbers 25774006 and 8257740060 for the same application. Schrader 29181 is a practical service replacement when the original TPMS sensor is no longer reporting correctly or when the vehicle requires a 315 MHz direct sensor with clamp-in mounting.

What This TPMS Sensor Helps Address

  • TPMS warning light caused by a failed sensor
  • Loss of tire pressure signal transmission
  • Incorrect or missing tire pressure readings in the dash display
  • Sensor replacement needs after wheel service or aging battery failure
  • Direct TPMS communication issues on 315 MHz applications

Installation Notes and Tips

Verify the vehicle uses a 315 MHz direct TPMS sensor before installation. For listed applications, the notes specify nut torque of 62 in-lbs (7 Nm) and valve core torque of 3.5 in-lbs (0.4 Nm). Confirm wheel and sensor compatibility, then follow the vehicle service procedure for TPMS relearn or activation after installation. Schrader 29181 is pre-programmed and programmable, which supports setup on the listed applications.

Quality Assurance

Schrader Valves backs this TPMS sensor with a 1-year manufacturer warranty. The part is built with an aluminum valve stem, plastic housing, and direct-monitoring sensor design for service on supported Chevrolet Trailblazer, GMC Envoy, and related vehicle applications.

Related reading

This part fits 52 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelNotes
2009ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2009GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2009Saab9-7x315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2008ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2008GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2008IsuzuAscender315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2008Saab9-7x315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2007BuickRainier315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2007CadillacCTS315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2007ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2007GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2007IsuzuAscender315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2007Saab9-7x315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006BuickRainier315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006CadillacCTS315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006CadillacSRX315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006ChevroletSSR315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006ChevroletTrailblazer EXT315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006GMCEnvoy XL315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006IsuzuAscender315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2006Saab9-7x315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005BuickRainier315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005CadillacCTS315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005CadillacSRX315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005ChevroletSSR315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005ChevroletTrailblazer EXT315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005GMCEnvoy XL315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005IsuzuAscender315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2005Saab9-7x315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004BuickRainier315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004CadillacCTS315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004CadillacSRX315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004ChevroletSSR315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004ChevroletTrailblazer EXT315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004GMCEnvoy XL315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2004IsuzuAscender315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2003CadillacCTS315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2003ChevroletSSR315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2003ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2003ChevroletTrailblazer EXT315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2003GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2003GMCEnvoy XL315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2002ChevroletTrailblazer315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2002ChevroletTrailblazer EXT315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2002GMCEnvoy315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
2002GMCEnvoy XL315 MHz; Nut torque = 62in-lbs,7Nm; Valve core torque = 3.5 in-lbs, 0.4Nm
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
257740068257740060