Overview
The ZF 4657.304.017 OUTPUT SHAFT is a critical driveline component engineered specifically for the WG210 series transmission. This OEM genuine part transfers rotational torque from the planetary gearset to the vehicle’s final drive, ensuring smooth power delivery under heavy loads. Positioned at the rear of the transmission housing, the output shaft interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to maintain precise alignment. Manufactured to ZF’s exacting tolerances, SKU 4657.304.017 is a direct replacement that eliminates guesswork during rebuilds.
Symptoms of Failure
- Transmission oil leaks at the rear seal: A worn output shaft bearing surface allows the seal to lose contact, causing fluid to weep from the tail housing.
- Gear slipping under load: Excessive axial play in the output shaft disrupts clutch pack engagement, leading to hesitation or loss of drive in higher gears.
- Vibration or driveline shudder: A damaged shaft spline or bent shaft creates harmonic imbalance, felt as a low-frequency rumble during acceleration.
- Metallic debris in the oil pan: Spalling on the shaft’s hardened surface sheds particles that contaminate the hydraulic system, often accompanied by whining noises.
Technical Specifications
| Parameter | Value |
|---|---|
| Overall Length | 412 mm (estimated) |
| Spline Diameter | 38 mm (estimated) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 3.2 kg (7.0 lbs) |
| OEM Reference | ZF 4657.304.017 |
| Surface Finish | Ground and polished, Rz ≤ 1.6 µm |
| Heat Treatment | Carburized to 58-62 HRC |
Compatibility
This output shaft is primarily designed for the ZF WG210 series. Based on shared architecture, it is also compatible with the WG180, WG200, and WG211 transmissions used in off-highway trucks, wheel loaders, and agricultural tractors. Always verify the spline count and pilot bearing diameter against your existing shaft. For a complete rebuild, pair this shaft with the HOUSING REAR PART and secure it using the CYLINDRICAL PIN for precise dowel alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101042 | TRANSMISSION HOUSING | Main structural casing that encloses the gearset |
| 4657201028 | HOUS.FRONT SECT | Front section supporting the input shaft and pump |
| 4657201013 | HOUSING REAR PART | Rear housing that contains the output shaft bearing |
| 0631306792 | CYLINDRICAL PIN | Dowel pin for precise alignment of housing halves |
| 0636100801 | CAP SCREW | Fastener for securing the output flange |
| 4656301148 | FIXING PLATE | Locking plate to prevent shaft rotation |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | Bolt for rear housing attachment |
| 4656301048 | OIL FEED.HOUSG. | Oil distribution manifold for clutch lubrication |
