Overview
The ZF 4657.063.022 3 WG 211 Powershift Transmission Assembly is a complete, factory-grade unit engineered for heavy-duty off-highway machinery. This fully assembled transfer case serves as the central power distribution hub, converting engine torque into controlled hydraulic flow for forward and reverse motion in wheel loaders, dozers, and material handlers. As a direct replacement for the WG 211 series, the SKU 4657.063.022 integrates seamlessly with the TRANSMISSION HOUSING to protect internal planetary gearsets and clutch packs from debris and thermal stress. This unit is precision-machined to OEM tolerances, ensuring reliable power transmission in demanding construction and mining applications.
Symptoms of Failure
- Delayed engagement or gear slipping — Worn internal clutch packs or damaged seals within the 4657.063.022 assembly cause hesitation when shifting between forward and reverse, often accompanied by a grinding noise under load.
- Hydraulic fluid leaks near the housing joints — Cracks or fatigue in the HOUS.FRONT SECT or HOUSING REAR PART allow transmission oil to escape, leading to low pressure and overheating.
- Unusual vibration or whining noise — Worn bearings or misaligned shafts inside the assembly create metal-on-metal contact, detectable as a high-pitched whine during acceleration.
- Intermittent power loss — A failing CYLINDRICAL PIN can cause the shift fork to disengage, resulting in sudden loss of drive power without warning.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4657.063.022 |
| Assembly Type | Complete Powershift Transmission Unit (3 WG 211) |
| Weight (estimated) | 185 kg (408 lbs) |
| Dimensions (L x W x H) | 620 mm x 480 mm x 410 mm |
| Material | High-grade cast iron housing with steel planetary gears |
| OEM Reference | ZF 3 WG 211 Series |
| Bolt Torque (housing) | 120 Nm (88.5 lb-ft) |
| Fluid Capacity | 12.5 liters (3.3 gal) of ZF TE-ML 03 oil |
Compatibility
This complete unit is designed exclusively for the ZF WG 211 series of powershift transmissions. It is fully compatible with models including WG180, WG200, and WG211, commonly found in articulated dump trucks, wheel loaders, and telescopic handlers from manufacturers such as Liebherr, Volvo, and JCB. The 4657.063.022 assembly also integrates with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure proper alignment of the input shaft and output flange. For machines requiring a rear housing replacement, the HOUSING REAR PART is a direct match. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Encloses and protects internal gears and clutch packs |
| 4657301130 | HOUS.FRONT SECT | Front section of the transmission housing for input shaft support |
| 4657301131 | HOUSING REAR PART | Rear housing section for output shaft and bearing alignment |
| 0631306816 | CYLINDRICAL PIN | Precision dowel pin for aligning housing halves |
| 0636102489 | CAP SCREW | Fastener for securing housing sections |
| 4656301148 | FIXING PLATE | Locks components in place to prevent axial movement |
| 0636102463 | CAP SCREW | High-strength bolt for clutch pack retention |
| 4657201133 | SCREEN SHEET | Filter mesh for hydraulic fluid debris protection |
| 0636115287 | CAP SCREW | Bolt for mounting the screen sheet assembly |
| 4657301065 | PLATE | Wear plate for shift fork guide surface |
Frequently Asked Questions
Q: Can the ZF 4657.063.022 be rebuilt, or must it be replaced as a complete unit?
A: While individual internal components like clutch packs and seals can be serviced, the 4657.063.022 is sold as a complete, pre-assembled unit to ensure factory tolerances. For severe wear or housing cracks, full replacement is recommended to avoid premature failure.
Q: What is the typical lifespan of this powershift transmission assembly?
A: With proper maintenance and regular fluid changes, the 3 WG 211 assembly typically lasts 8,000 to 12,000 operating hours in heavy-duty applications. Harsh environments or frequent shock loading can reduce this lifespan.
Q: Does this unit include the necessary bolts and pins for installation?
A: The 4657.063.022 assembly includes the main housing and internal gears, but separate fasteners such as the CAP SCREW and CYLINDRICAL PIN must be ordered separately for a complete installation.
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Phone: +86 158 2286 3467 |
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