ZF 4657.302.017 TURBINE SHAFT for WG191/WG211 | OEM Genuine Part

Overview

The ZF 4657.302.017 TURBINE SHAFT is a critical rotating component engineered for the WG191 and WG211 series transmissions. This OEM genuine part transfers torque from the torque converter turbine directly into the planetary gearset, enabling smooth power delivery under heavy loads. Positioned centrally within the transmission housing, the shaft interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain precise alignment. The SKU 4657.302.017 is manufactured to ZF’s original tolerances, ensuring a direct replacement without modifications. This shaft is essential for maintaining hydraulic pressure balance and preventing axial play in the turbine assembly.

Symptoms of Failure

• Torque converter shudder at low speeds: A worn turbine shaft causes irregular engagement between the turbine and stator, producing a noticeable vibration during acceleration from a stop.
• Delayed forward engagement: When the shaft splines wear, the turbine cannot transfer power efficiently, resulting in a 2-3 second lag before the vehicle moves after selecting Drive.
• Transmission fluid contamination with metallic debris: Friction between the shaft and its bushings generates fine metal particles, visible in the oil pan or on the SCREEN SHEET during service.
• Intermittent gear slipping under load: As the shaft loses concentricity, the turbine hub can intermittently lose contact with the pump, causing sudden RPM flares without corresponding acceleration.

Technical Specifications

Compatibility

This turbine shaft is specifically designed for ZF’s WG191 and WG211 series transmissions, commonly found in medium-duty trucks, buses, and construction equipment. It also fits select variants of the WG180 and WG200 models when used with the correct HOUSING REAR PART. The shaft is compatible with both 4-speed and 5-speed configurations of these series. Always verify the spline count and overall length against your existing shaft before installation. For proper assembly, use a new CYLINDRICAL PIN to secure the shaft to the turbine hub.

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