Overview
The ZF 4644.303.250 OUTPUT SHAFT is a critical driveline component engineered specifically for the WG 200 series powershift transmission. This OEM genuine part transmits rotational torque from the planetary gearset to the vehicle’s drive axle, ensuring smooth power delivery under heavy loads. Machined from high-tensile alloy steel, the shaft interfaces directly with the 4460115043: HOUSING and is supported by precision bearings to maintain axial alignment. The SKU 4644.303.250 is a direct replacement for worn or damaged output shafts in ZF’s off-highway and industrial drivetrains.
Symptoms of Failure
- Oil leaks at the output flange seal: A worn shaft surface or damaged splines can compromise the 0734319337: SHAFT SEAL, leading to visible transmission fluid seepage.
- Gear slipping under load: Excessive backlash or fretting on the shaft’s splined section causes intermittent power loss, especially during torque converter lockup.
- Vibration or driveline shudder: Bearing journal wear on the shaft creates radial play, which is amplified through the 4469315012: AXLE DRIVE HOUSING.
- Metallic debris in transmission oil: Spalling on the shaft’s hardened surface introduces ferrous particles into the lubrication circuit, accelerating wear on the 0750117406: TAPER ROLLER BEARING and 0750117802: TAPERED ROLLER BEARING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4644.303.250 |
| Overall Length | 285 mm (estimated) |
| Journal Diameter | 50 mm |
| Spline Count | 21 (male, involute) |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 4.2 kg |
| OEM Reference | ZF 4644.303.250 |
| Hardness | 58-62 HRC (surface) |
Compatibility
This output shaft is designed for the ZF WG 200 series powershift transmissions. It is also compatible with the WG180 and WG210 models when used with the correct 0730161317: WASHER and 0730161340: WASHER shim sets. The shaft fits all WG200 variants (WG200, WG200-2, WG200-3) used in wheel loaders, forklifts, and industrial tractors. Always verify the bearing bore dimensions against the 4469315012: AXLE DRIVE HOUSING before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4460115043 | HOUSING | Encloses the output shaft and supports bearing preload |
| 4469315012 | AXLE DRIVE HOUSING | Houses the final drive gearset and output flange |
| 0750117406 | TAPER ROLLER BEARING | Supports radial and axial loads on the shaft |
| 0750117802 | TAPERED ROLLER BEARING | Secondary bearing for high-thrust applications |
| 0734319337 | SHAFT SEAL | Prevents oil leakage at the output flange |
| 0730161317 | WASHER | Adjusts bearing preload (thickness: 1.0 mm) |
| 0730161451 | WASHER | Shim for axial clearance (thickness: 1.5 mm) |
| 0730161452 | WASHER | Shim for axial clearance (thickness: 2.0 mm) |
| 0730161453 | WASHER | Shim for axial clearance (thickness: 2.5 mm) |
| 0730161340 | WASHER | Lock washer for output shaft nut |
ZF 4644.303.250 OUTPUT SHAFT – Shaft RFQ Support
PartsZF supports RFQ preparation for ZF 4644.303.250 OUTPUT SHAFT where shaft identification and documentation review are required before ordering.
Part-Number Summary
Use ZF number 4644.303.250 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: DIFFERENTIAL
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 | 4644.303.250 |
|---|---|
| Normalized SKU | 4644303250 |
| Part name | OUTPUT SHAFT |
| Product category | shaft |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
Image and Documentation Notes
Current product media status: fallback. 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.
Related Parts
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- ZF 5838.300.106 INPUT SHAFT
