Overview
This ZF 4656.054.071 4 WG 160 Powershift Transmission Assembly is a complete unit engineered for heavy-duty industrial applications. It serves as the central power distribution hub within the WG 160 series, managing torque flow and gear selection for wheel loaders, dozers, and material handlers. The SKU 4656.054.071 integrates the main gear cluster, clutch packs, and hydraulic control components into a single, ready-to-install assembly. When rebuilding a WG 160, this unit works in concert with the 4656101031: TRANSMISSION HOUSING to ensure proper alignment and oil circulation.
Symptoms of Failure
- Delayed or harsh gear engagement — When the internal clutch packs wear, operators experience a noticeable lag or a jarring shift when moving from neutral to forward or reverse.
- Low hydraulic pressure and slipping under load — Worn seals or damaged pistons inside the assembly cause the transmission to slip during heavy digging or climbing, reducing machine productivity.
- External oil leaks near the bell housing — Cracks in the main casing or degraded gaskets allow transmission fluid to escape, often visible as drips beneath the torque converter area.
- Unusual whining or grinding noises — Bearing failure or gear tooth damage inside the 4656.054.071 produces metallic sounds that intensify with engine RPM.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4656.054.071 |
| Assembly Type | Complete Powershift Transmission Unit |
| Series | WG 160 |
| Weight (estimated) | 185 kg (408 lbs) |
| Dimensions (L x W x H) | 620 mm x 480 mm x 410 mm |
| Primary Material | Cast iron housing with hardened steel gears |
| OEM Reference | ZF 4 WG 160 |
| Hydraulic Pressure Range | 14–18 bar (203–261 psi) |
| Number of Speeds | 4 forward / 4 reverse |
Compatibility
This complete unit is designed specifically for the ZF WG 160 series. It is also compatible with the WG 180 and WG 200 series when used with the appropriate adapters. The assembly directly replaces units in ZF 4 WG 160, 4 WG 180, and 4 WG 200 transmissions found in articulated dump trucks, graders, and compact loaders. For proper installation, ensure the 4656201075: HOUS.FRONT SECT and the 4656201036: HOUSING REAR PART are inspected for wear. In some applications, the 4472239179: HOUSING REAR PART is used as an alternative rear section.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural casing for gear and shaft alignment |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft and pump drive |
| 4656201036 | HOUSING REAR PART | Rear casing supporting output shaft and PTO |
| 4472239179 | HOUSING REAR PART | Alternate rear housing for specific WG 160 variants |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 4656301148 | FIXING PLATE | Secures clutch pack retaining rings |
| 0636100817 | CAP SCREW | Fastener for valve body attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | Bolt for securing the oil pan |
Frequently Asked Questions
Q: Can the 4656.054.071 be installed without replacing the housing sections?
A: Yes, but we strongly recommend inspecting the TRANSMISSION HOUSING and both front and rear sections for cracks or warping before reuse.
Q: What is the typical service life of this complete unit?
A: Under normal operating conditions with proper maintenance, the 4 WG 160 assembly can last 8,000–12,000 hours. Symptoms like slipping or noise indicate it is time for replacement.
Q: Does this part include the valve body or torque converter?
A: No, the 4656.054.071 is the main gear and clutch assembly only. The valve body and torque converter must be ordered separately.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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