Dorman 917-644 Vehicle Speed Sensor – Direct Replacement for Select GM Models

Overview

The Dorman 917-644 vehicle speed sensor is engineered to match the fit and function of the original part across a broad range of GM vehicles. In daily use, it provides a stable speed signal to the vehicle's computer, helping the engine and transmission manage acceleration and cruise control with consistency.

Direct replacement and performance

This sensor is designed as a direct replacement for the original unit. It mirrors the factory’s connector style, electrical interface, and overall form, reducing installation guesswork and helping restore normal vehicle response when the prior part has failed due to wear or electrical issues.

Durability you can count on

Constructed from quality components, the 917-644 is built to withstand road vibrations, temperature variations, and electrical noise. With proper use in compatible models, it aims to deliver reliable performance over a long service life.

• Direct fit and function on a wide set of GM sedans and SUVs
• Designed to endure typical driving conditions and fluctuating temperatures
• Quality components chosen to minimize early degradation and signal loss

Quality and expertise you can trust

Backed by Dorman’s team of automotive product experts in the United States and a long history of engineering know-how, this part reflects a commitment to consistent replacement quality across the lineup.

• Supported by a U.S.-based engineering team with extensive experience
• Aligned with real-world testing to mirror original performance in typical driving scenarios

Fitment verification and how to use the garage tool

To ensure you’re choosing the correct part for your exact vehicle, use the garage tool on the product page. Enter your make, model, and trim level to confirm compatibility before purchasing.

Real-world use cases

For drivers maintaining older GM cars, this sensor offers a practical path to restoring consistent speed data when the original sensor shows signs of fatigue. While results can vary by driving habits and maintenance, a direct replacement like the 917-644 can help keep signals stable for downstream control systems. This can be especially useful during routine commuting, highway cruising, or when cruise control behavior is a consideration.