Overview
The ZF 4657.063.302 3 WG 211 Powershift Transmission Assembly is a complete, factory-matched unit engineered for heavy-duty off-highway applications. This assembly integrates the main gear cluster, clutch packs, and hydraulic control components into a single, ready-to-install package. As the core power transfer module within the WG 211 Series, it directly replaces worn or failed assemblies to restore full machine performance. The SKU 4657.063.302 is precision-balanced to OEM tolerances, ensuring seamless integration with the TRANSMISSION HOUSING and adjacent structural elements.
Symptoms of Failure
- Delayed or harsh engagement: When the assembly wears, hydraulic pressure drops, causing noticeable lag when shifting between forward and reverse gears.
- Oil leaks at the housing interface: Degraded seals between the assembly and the HOUS.FRONT SECT or HOUSING REAR PART often result in visible fluid seepage.
- Gear slipping under load: Worn clutch discs within the assembly cause intermittent power loss, particularly during uphill travel or heavy lifting.
- Unusual metallic noise: Bearing wear or gear tooth damage produces a grinding or whining sound that intensifies with engine RPM.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.063.302 |
| Assembly Type | Complete Powershift Unit (3 WG 211) |
| Dry Weight | ~185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 410 mm |
| Housing Material | High-grade cast iron (GGG-40) |
| OEM Reference | ZF 4657.063.302 |
| Torque Capacity | Up to 2,100 Nm |
Compatibility
This complete unit is designed exclusively for the ZF WG 211 Series powershift transmissions. It is directly compatible with models including the WG180, WG200, and WG211. The assembly interfaces with the CYLINDRICAL PIN for precise alignment and requires the correct bolt torque specifications when mounting to the front and rear housing sections. It is not backward-compatible with older WG 120 or WG 150 series without significant modification.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101087 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657301172 | HOUS.FRONT SECT | Front section housing for input shaft and pump drive |
| 4657301173 | HOUSING REAR PART | Rear section enclosing output shaft and PTO interface |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing mating |
| 0636102489 | CAP SCREW | M16 fastener for housing-to-assembly bolting |
| 4656301148 | FIXING PLATE | Retention plate for clutch pack preload |
| 0636102463 | CAP SCREW | M12 bolt for fixing plate attachment |
| 4657201133 | SCREEN SHEET | Fine mesh filter for hydraulic circuit debris |
| 0636115287 | CAP SCREW | M20 bolt for heavy-duty flange connections |
| 4657301065 | PLATE | Spacer plate for oil flow distribution |
Frequently Asked Questions
Q: Can the 4657.063.302 assembly be rebuilt, or must it be replaced as a complete unit?
A: While individual clutch packs and seals are serviceable, the assembly is factory-balanced and pressure-tested. For most field repairs, replacing the complete unit is recommended to avoid internal misalignment and subsequent failure.
Q: What is the typical service life of this powershift assembly under normal operating conditions?
A: With proper fluid maintenance and load management, the assembly typically lasts 6,000 to 8,000 operating hours. Harsh environments with heavy dust or continuous high-torque loads may reduce this interval.
Q: Does this part include the necessary bolts and alignment pins for installation?
A: No. The assembly is supplied as a bare unit. You must order the CYLINDRICAL PIN and appropriate CAP SCREW sets separately to complete the installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
