Overview
This ZF 4657.064.005 4 WG 211 Powershift Transmission Assembly is a complete, factory-matched unit designed for heavy-duty industrial applications. As the core rotating assembly within the WG 211 series, it integrates the planetary gear sets, clutch packs, and valve body components necessary for smooth, reliable power delivery under high torque loads. The SKU 4657.064.005 serves as a direct replacement for worn or failed assemblies, restoring full operational efficiency in wheel loaders, dozers, and material handlers. This complete unit eliminates the need for piecemeal repairs, ensuring that all internal clearances and hydraulic circuits meet OEM specifications from the first shift.
Symptoms of Failure
When the ZF 4657.064.005 assembly begins to degrade, operators typically notice one or more of the following failure modes:
- Delayed or harsh engagement: A noticeable lag when shifting from neutral to forward or reverse, often accompanied by a jarring clunk, indicates worn clutch discs or degraded sealing rings inside the assembly.
- Intermittent gear slipping under load: The transmission may momentarily lose power during uphill climbs or when digging, a classic sign of hydraulic pressure loss or worn friction material within the 4 WG 211 unit.
- External oil seepage at the bell housing: Leaks originating from the joint between the transmission housing and the front section suggest a compromised gasket or seal, often linked to fatigue in the main assembly structure.
- Unusual whining or grinding noises: A high-pitched whine that changes with engine RPM, or a low grinding sound during deceleration, points to bearing failure or gear tooth damage inside the complete unit.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4657.064.005 |
| Assembly Type | Complete Powershift Unit (4-speed) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Primary Material | High-grade cast iron & alloy steel |
| OEM Reference | ZF 4 WG 211 |
| Torque Capacity (est.) | 1,200 Nm |
Compatibility
This 4657.064.005 assembly is engineered specifically for the ZF WG 211 series of powershift transmissions. It is a direct fit for models including the WG180, WG200, and WG211. The unit is commonly found in articulated dump trucks, wheel loaders, and industrial forklifts produced between 2005 and 2020. Always verify the transmission serial number against your equipment’s service manual to confirm compatibility before installation.
Related Components
During installation of the 4657.064.005 assembly, several companion parts must be inspected or replaced to guarantee a leak-free, long-lasting rebuild. The 4657101049 TRANSMISSION HOUSING provides the structural backbone for the entire gear train. The 4657301130 HOUS.FRONT SECT and 4657301131 HOUSING REAR PART enclose the clutch packs and final drive components. A 0631306816 CYLINDRICAL PIN is critical for aligning these housing sections during assembly, preventing misalignment that could lead to premature bearing wear.
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657301130 | HOUS.FRONT SECT | Front section enclosing clutch packs |
| 4657301131 | HOUSING REAR PART | Rear section for output shaft support |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636102489 | CAP SCREW | Fastener for housing flanges |
| 4656301148 | FIXING PLATE | Retains bearing preload |
| 0636102463 | CAP SCREW | Secures fixing plate |
| 4657201133 | SCREEN SHEET | Filter mesh for hydraulic circuit |
| 0636115287 | CAP SCREW | Fastener for valve body |
| 4657301065 | PLATE | Spacer or shim for clutch clearance |
Frequently Asked Questions
Q: Is the 4657.064.005 assembly pre-filled with oil?
A: No. This complete unit is shipped dry. You must add the correct ZF-approved transmission fluid (typically ZF TE-ML 03 or 05 specification) after installation and before initial operation.
Q: Can I reuse my old transmission housing with this new assembly?
A: While possible, we strongly recommend replacing the 4657101049 TRANSMISSION HOUSING at the same time. Old housings often have microscopic cracks or worn dowel pin bores that can cause misalignment and premature failure of the new assembly.
Q: What is the typical service life of this 4 WG 211 unit?
A: With proper maintenance—including regular oil changes and filter replacements—this assembly can last 8,000 to 12,000 operating hours in heavy-duty applications. Harsh environments or frequent shock loading may reduce this interval.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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