Overview
The ZF 4657.302.016 TURBINE SHAFT is a critical rotating component engineered for the WG191 and WG211 series transmissions. This OEM genuine part transmits torque from the turbine hub to the planetary gear set, converting hydraulic energy into mechanical power. Precision-ground journals and splined ends ensure minimal vibration and exact alignment within the clutch pack assembly. The SKU 4657.302.016 is manufactured to ZF’s original metallurgical standards, providing a direct-fit replacement that restores factory shift quality and load capacity. When rebuilding a WG191 or WG211 unit, this shaft must be inspected alongside the 4657120005: PRESSURE REGULATOR and 0501211384: VALVE to ensure complete hydraulic circuit integrity.
Symptoms of Failure
- Torque converter shudder under load: A worn turbine shaft bearing surface causes axial play, leading to vibration during acceleration—often misdiagnosed as a failing converter.
- Delayed forward engagement: Spline wear on the 4657.302.016 prevents the turbine from locking into the clutch hub promptly, creating a 2–3 second lag when shifting from Neutral to Drive.
- Metallic debris in transmission fluid: Flaking from the shaft’s hardened surface contaminates the oil, accelerating wear on the 0630532183: INDENTED RING and 4656306145: PISTON.
- Intermittent gear slipping in higher ranges: Loss of turbine shaft concentricity reduces hydraulic pressure to the clutch packs, causing random slip in 3rd and 4th gears.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.302.016 |
| Overall Length | 312 mm (estimated) |
| Shaft Diameter (bearing journal) | 28.5 mm |
| Spline Count (input end) | 24-tooth involute |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 1.85 kg |
| OEM Reference | ZF 4657.302.016 |
| Surface Finish | Ground & polished, Ra ≤ 0.4 µm |
Compatibility
This turbine shaft is designed for ZF’s WG180, WG190, WG191, WG200, and WG211 series transmissions. It directly replaces the original shaft in 4-speed and 5-speed off-highway and bus applications. The 4657.302.016 is not interchangeable with earlier WG150-series shafts due to different spline pitch. Always verify the transmission serial number before ordering. For complete assembly, pair this shaft with the 0732042767: COMPRESSION SPRING and 0631612064: SET SCREW to secure the turbine hub.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657120005 | PRESSURE REGULATOR | Controls main line pressure to clutch circuits |
| 0501211384 | VALVE | Modulates converter lock-up engagement |
| 0630532183 | INDENTED RING | Retains turbine shaft in the stator support |
| 4656306145 | PISTON | Applies clutch pack pressure via hydraulic force |
| 0732042767 | COMPRESSION SPRING | Returns piston to neutral position |
| 0631612064 | SET SCREW | Locks turbine hub to shaft spline |
| 0631610026 | SET SCREW | Secures bearing race on shaft journal |
| 4657101049 | TRANSMISSION HOUSING | Encloses turbine shaft and gear train |
| 4657301130 | HOUS.FRONT SECT | Front section supporting input shaft bearings |
| 4657301131 | HOUSING REAR PART | Rear section housing output shaft assembly |
Frequently Asked Questions
Q: Can the 4657.302.016 turbine shaft be used in a ZF WG180 transmission?
A: Yes. The shaft is dimensionally identical for WG180 through WG211 models. However, confirm your unit’s serial number prefix to ensure the spline count matches your turbine hub.
Q: What causes premature wear on this turbine shaft?
A: The most common cause is low transmission fluid level, which starves the shaft bearings of lubrication. Contaminated fluid with abrasive particles also accelerates spline and journal wear. Always replace the 0630532183: INDENTED RING when installing a new shaft.
Q: Is this part a direct replacement for the original ZF shaft?
A: Absolutely. This is an OEM genuine part carrying the exact ZF 4657.302.016 stamp. No modifications or adapters are required for a bolt-in installation.
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ZF 4657.302.016 TURBINE SHAFT – Shaft RFQ Support
PartsZF helps B2B buyers source ZF 4657.302.016 TURBINE SHAFT with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This shaft page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 4657.302.016 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Documentation reference: 4657033001
- Documentation reference: 4657033002
- Documentation reference: 4657033003
- Documentation reference: 4657033005
- Illustration section: INPUT
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 4657.302.016 |
|---|---|
| Normalized SKU | 4657302016 |
| Part name | TURBINE SHAFT |
| Product category | shaft |
| Cross-reference support | Available for RFQ review |
| Weight | 1.17 |
Image and Documentation Notes
Current product media status: diagram. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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