Overview
This ZF 4656.054.181 4 WG 160 Powershift Transmission Assembly is a complete, ready-to-install unit engineered for heavy-duty industrial applications. As the core assembly for the WG 160 series, it integrates the main gear cluster, clutch packs, and hydraulic control system into a single robust package. The SKU 4656.054.181 replaces worn or failed transmissions in loaders, graders, and material handlers, restoring full power flow from the engine to the driveline. It works in conjunction with the 4656101058: TRANSMISSION HOUSING to provide structural integrity and oil containment for the rotating components.
Symptoms of Failure
- Delayed or harsh shifting under load: Worn clutch discs or valve body wear cause hesitation when engaging forward or reverse gears, often accompanied by a jarring engagement.
- Transmission overheating during operation: Internal seal failure or pump degradation leads to inadequate lubrication and cooling, triggering thermal alarms or fluid discoloration.
- Oil leaks at the housing joints: Cracks or gasket failure in the 4656201075: HOUS.FRONT SECT or rear sections allow hydraulic fluid to escape, reducing system pressure and causing erratic gear engagement.
- Loss of power in higher gears: Slipping clutches or worn planetary gearsets prevent the transmission from holding torque, resulting in reduced machine performance on inclines.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4656.054.181 |
| Series | WG 160 (4-speed powershift) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-strength cast iron (GGG-40) |
| Input Torque Capacity | 1,600 Nm (1,180 lb-ft) |
| OEM Reference | ZF 4 WG 160 |
| Related Fastener | 0636100817: CAP SCREW |
| Related Fastener | 0636100803: CAP SCREW |
| Alignment Component | 0631306816: CYLINDRICAL PIN |
Compatibility
This complete unit is designed for the ZF WG 160 series powershift transmissions. It is directly compatible with models including WG 160, WG 180, and WG 200, which are commonly found in telehandlers, wheel loaders, and industrial tractors. The assembly interfaces with the 4656201079: HOUSING REAR PART and the 4656298051: HOUSING REAR SECTION to complete the driveline enclosure. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101058 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft and pump drive |
| 4656201079 | HOUSING REAR PART | Rear housing section supporting output shaft bearings |
| 4656298051 | HOUSING REAR SECTION | Extended rear housing for PTO or auxiliary drives |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing mating |
| 4656301148 | FIXING PLATE | Secures clutch pack retaining rings |
| 0636100817 | CAP SCREW | High-tensile bolt for housing fastening |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | M12 bolt for valve body attachment |
Frequently Asked Questions
Q: Is the 4656.054.181 a direct replacement for all WG 160 transmissions?
A: This complete unit fits WG 160, WG 180, and WG 200 series transmissions with the same bellhousing pattern. Verify your transmission tag or consult your equipment manual to confirm spline count and PTO configuration.
Q: What other parts should I replace during installation?
A: We recommend replacing all gaskets, seals, and the 4656301016: SCREEN SHEET and 4656301017: SCREEN SHEET filters. Inspect the TRANSMISSION HOUSING for cracks and the CYLINDRICAL PIN for wear.
Q: Does this assembly include the torque converter?
A: No, this is the transmission assembly only. The torque converter and flex plate are sold separately. Ensure your existing converter is compatible with the input spline of this unit.
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Phone: +86 158 2286 3467 |
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