Overview
This ZF 4657.063.017 3 WG 211 Powershift Transmission Assembly is a complete, factory-grade unit engineered for heavy-duty off-highway machinery. As the core power transfer module in the WG 211 series, it integrates the planetary gear sets, clutch packs, and hydraulic control valves necessary for seamless direction and speed changes under load. The SKU 4657.063.017 replaces the entire assembly, ensuring your loader or dozer returns to full operational torque without the need for piecemeal repairs. It sits directly between the engine flywheel and the final drive, making it the central component for all driveline functions.
Symptoms of Failure
- Delayed or harsh engagement: When the assembly wears internally, you may experience a noticeable lag or a jarring clunk when shifting from forward to reverse, indicating worn clutch discs or degraded seals.
- Transmission fluid contamination: Metal shavings or dark, burnt-smelling oil in the sump often signal internal component fatigue within the 4657.063.017 unit, requiring immediate replacement.
- Loss of power under load: If the machine struggles to maintain speed on a grade or during digging, internal pressure loss from worn pistons or valve bodies is a common failure mode.
- External oil seepage at housing joints: Leaks around the mating surfaces of the TRANSMISSION HOUSING or the HOUS.FRONT SECT indicate gasket failure, often accompanied by low fluid levels and overheating.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4657.063.017 |
| Assembly Type | Complete Powershift Transmission (3-speed) |
| Dry Weight (approx.) | 385 kg (849 lbs) |
| Overall Length | 720 mm |
| Overall Width | 480 mm |
| Overall Height | 560 mm |
| Primary Material | High-tensile cast iron housing with steel alloy gears |
| OEM Reference | ZF 3 WG 211 |
| Related Fastener | CAP SCREW (0636102489) |
| Related Mounting Plate | FIXING PLATE (4656301148) |
| Related Fastener | CAP SCREW (0636102463) |
| Related Filter Screen | SCREEN SHEET (4657201133) |
| Related Fastener | CAP SCREW (0636115287) |
| Related Cover Plate | PLATE (4657301065) |
Compatibility
This complete assembly is designed for the ZF WG 211 series, which includes the WG180, WG200, and WG211 models commonly found in wheel loaders, telehandlers, and industrial tractors. It is also backward-compatible with certain WG 170 variants when used with the correct HOUSING REAR PART adapter kit. For precise fitment verification, always cross-reference your machine’s serial number with the 4657.063.017 designation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train and supports all internal shafts. |
| 4657301130 | HOUS.FRONT SECT | Forward section of the housing that aligns the input shaft and pump drive. |
| 4657301131 | HOUSING REAR PART | Rear housing segment that contains the output shaft bearing and parking brake interface. |
| 0631306816 | CYLINDRICAL PIN | Precision dowel pin used for exact alignment of housing halves during assembly. |
| 0636102489 | CAP SCREW | High-strength bolt securing the transmission housing to the engine bellhousing. |
| 4656301148 | FIXING PLATE | Locking plate that prevents rotation of the output flange retaining nut. |
| 0636102463 | CAP SCREW | Bolt used to fasten the valve body cover to the main housing. |
| 4657201133 | SCREEN SHEET | Fine mesh filter that protects the hydraulic pump from debris in the sump. |
| 0636115287 | CAP SCREW | Fastener for the PTO cover plate on the rear of the transmission. |
| 4657301065 | PLATE | Inspection cover plate providing access to the clutch pressure taps. |
Frequently Asked Questions
Q: Is the 4657.063.017 a direct bolt-in replacement for a WG 211 transmission?
A: Yes, this complete unit is a factory-spec assembly designed to replace the entire WG 211 powershift transmission. Ensure you also inspect the CYLINDRICAL PIN for wear, as misalignment during installation can cause premature failure.
Q: What tools are needed to install this assembly?
A: Standard heavy-duty shop tools including a transmission jack, torque wrench, and alignment fixtures are required. You will also need new CAP SCREW fasteners to meet OEM torque specifications.
Q: Can this unit be rebuilt, or is it only sold as a complete assembly?
A: While individual internal components are available, the 4657.063.017 is sold as a complete, pre-assembled and tested unit to minimize downtime. For partial repairs, consider the HOUS.FRONT SECT if only the front casing is damaged.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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