ZF 4616.301.112 PULSE DISC for WG65 | OEM Genuine Part

Overview

The ZF 4616.301.112 PULSE DISC is a critical speed-sensing component engineered specifically for the WG 65 Series transmission. This OEM genuine part, identified by SKU 4616.301.112, mounts directly onto the output shaft assembly to generate precise rotational signals for the transmission control unit. By converting mechanical rotation into electrical pulses, it enables accurate shift timing and torque converter lockup. When paired with a robust 4616101059: TRANSMISSION HOUSING, the pulse disc ensures consistent data flow for optimal gear engagement under heavy loads.

Symptoms of Failure

• Erratic shift patterns or gear slipping: A worn pulse disc sends intermittent signals, causing the transmission to hunt for gears or slip under acceleration.
• Delayed engagement or harsh shifting: Degraded pulse teeth disrupt timing, leading to jarring shifts or a noticeable lag when moving from neutral to drive.
• Check transmission light with speed sensor codes: Faulty pulse discs often trigger diagnostic trouble codes (DTCs) related to output speed sensor circuit errors.
• Intermittent loss of cruise control: Since the pulse disc provides vehicle speed data, its failure can disable cruise control or cause erratic speedometer readings.

Technical Specifications

Compatibility

This pulse disc is primarily designed for the ZF WG 65 Series, but it also fits select models in the WG180 and WG200 families due to shared output shaft architecture. Compatible transmissions include WG65, WG180, WG200, and WG210 series equipped with electronic shift controls. Always verify shaft spline count and pulse ring diameter before installation. For secure mounting, use 0636011038: HEXAGON SCREW and 0636011118: HEXAGON SCREW to fasten the disc to the hub. The assembly also requires 0636016015: HEXAGON SCREW for final torque retention.

Related Components