Standard Ignition TPM43A Tire Pressure Monitoring System Sensor

OE-Style TPMS Sensor for GM Trucks and SUVs

The Standard Ignition TPM43A is a tire pressure monitoring system sensor built for direct replacement on select GM applications. It arrives pre-programmed with the correct OE protocol and is ready for installation and OE relearn procedures right out of the box.

• Pre-programmed at the factory with exact OE protocol
• 315 MHz frequency for supported GM vehicles
• Clamp-in, bolt-on style wheel mounting
• Military-grade lithium battery for long service life
• Low-frequency output wakeup timer helps preserve shelf life and battery performance
• Z-axis or dual XY-axis accelerometer design for more precise tire position and rotation data
• External-crystal oscillator supports stable frequency communication
• Built to meet or exceed OE performance and SAE2657 specifications

Detailed Product Overview

Standard Ignition TPM43A is engineered as an OE-style TPMS sensor for 2002-2004 Cadillac Escalade, 2004 Cadillac Escalade ESV, 2004 Cadillac Escalade EXT, and select 2004 Chevrolet Silverado, Tahoe, Suburban, Avalanche, Sierra, Yukon, and Yukon XL models. This 315 MHz sensor is designed for wheel mounting with a clamp-in, bolt-on connector style and uses an aluminum valve application noted in the fitment data. The TPM43A is validated through extensive environmental and durability testing, including temperature, humidity, salt fog, vibration, rapid deflation, and drop testing, to support reliable sensor operation in demanding driving conditions.

This part cross-references Dorman - OE Solutions 974-006 and DENSO Auto Parts 550-2403 for the same application.

What It Helps Address

• TPMS warning light caused by a failed wheel sensor
• Loss of tire pressure data after sensor battery depletion
• Incorrect or intermittent sensor communication at 315 MHz
• Service issues after wheel or tire replacement on GM trucks and SUVs
• Need for an OE-relearned replacement sensor with factory protocol

Installation Notes

Install on the wheel location specified by the vehicle service procedure and follow the OEM factory relearn process after installation. Sensor nut torque is 62 in/lbs. Confirm 315 MHz frequency and vehicle application before installation, especially on 2002-2004 Cadillac Escalade and 2004 Chevrolet Silverado, Tahoe, Suburban, Sierra, Yukon, and related models.

Quality Assurance

Standard Ignition designs this TPMS sensor to meet or exceed OE performance requirements and SAE2657 specifications. The TPM43A also undergoes independent lab validation and 168-hour on-vehicle live testing to verify durability and communication performance.