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Eaton · Probes & Sensors
577.99501.
In stock · ships from Knoxville
This is a tachometer speed sensor designed for heavy-duty Eaton transmissions.
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Known to fit Eaton models T, W, and K-series transmissions produced between 1995 and 2010. Uses a 4-prong external tone ring.
Part data verified against 2 catalog sources
Numbers this part supersedes or interchanges with. Showing 5 of 5.
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It reads the rotational speed of the transmission's output shaft using an external tone ring and sends that signal to the vehicle's speedometer or engine control module. A faulty sensor can cause erratic speedometer readings, cruise control issues, or shift problems, making replacement necessary. It's a common service part for maintaining accurate vehicle speed data.
Part Number: 577.99501.
TACH SPEED SENSOR
Vendor: Automann
Dealer: KP Services Crossville
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