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(888) 312-8812 Login SignupThe Allison Transmission Planetary Retarder Output Speed Sensor Assembly is an OEM replacement designed to restore precise communication between your transmission and control module. This sensor monitors the rotational speed of the planetary retarder output and delivers accurate signals that the TCM relies on to manage shift timing, torque converter lockup, and vehicle speed readings. When the sensor begins to fail, drivers may notice rough or inconsistent shifting, warning lights, or incorrect speed information, all of which can affect performance and uptime. Built with sealed electronics that protect against heat, vibration, dirt, moisture, and road salt, this Allison 29543434 sensor assembly is engineered for long-lasting reliability in demanding environments.
Allison Transmission® is the largest manufacturer of commercial-duty automatic transmissions and hybrid propulsion systems for various applications, including medium and heavy duty commercial vehicles and city buses. It was initially founded over 100 years ago by James Allison to help fund and build the Indianapolis Motor Speedway. But in 1960, it became highly recognized when it launched the world's first fully automatic transmission for commercial vehicles. This has paved the way for Allison to become what it is today—a world-renowned company that helps improve the way the world works. It attributes its success to its products, world-class processes, and people.
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