Overview
This complete ZF 4656.054.175 4 WG 160 Powershift Transmission Assembly is a fully integrated unit designed for heavy-duty off-highway applications. As a core component of the WG 160 series, this assembly manages torque distribution and gear ratio selection under high-load conditions. The SKU 4656.054.175 replaces the entire rotating assembly, including the clutch packs, planetary gearsets, and hydraulic control elements. It sits directly between the engine flywheel housing and the final drive, serving as the primary power transfer module. When rebuilding a WG 160 transmission, this complete unit is often paired with a new TRANSMISSION HOUSING to ensure proper alignment and sealing of the internal components.
Symptoms of Failure
- Delayed engagement or gear slipping under load: Worn clutch discs or damaged seals inside the 4656.054.175 assembly cause the transmission to hesitate before engaging forward or reverse, especially when operating on inclines.
- Hydraulic fluid contamination with metallic debris: As internal bearings and gears degrade, fine metal particles circulate through the system, often visible when checking the dipstick or draining the oil.
- Erratic shift patterns or loss of high range: A failing powershift unit may skip gears or fail to shift into 3rd or 4th gear, indicating internal piston seal failure or valve body wear.
- External oil seepage from the bell housing area: Cracks in the HOUS.FRONT SECT or HOUSING REAR PART allow pressurized oil to escape, leading to low fluid levels and eventual transmission failure.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4656.054.175 |
| Assembly Type | Complete Powershift Unit (4 WG 160) |
| Dry Weight (approx.) | 185 kg (408 lbs) |
| Overall Length | 620 mm |
| Overall Width | 480 mm |
| Overall Height | 510 mm |
| Housing Material | High-Grade Cast Iron (GGG-40) |
| OEM Reference | ZF 4 WG 160 |
| Torque Capacity | 1,600 Nm (1,180 lb-ft) |
| Fluid Capacity | 22 liters (5.8 gallons) |
Compatibility
This 4656.054.175 assembly is engineered for the ZF WG 160 series powershift transmissions. It is directly compatible with the following ZF models: WG 160, WG 161, and WG 162. While primarily designed for the 4-speed WG 160 variant, the unit can also be adapted to certain WG 180 and WG 200 series applications with modifications to the HOUSING REAR SECTION. Always verify the spline count and bell housing pattern before installation. This assembly is commonly found in ZF-ergopower transmissions used in agricultural tractors, wheel loaders, and telescopic handlers from manufacturers such as Claas, Deutz-Fahr, and JCB.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101058 | TRANSMISSION HOUSING | Main structural casing that encloses the gear train and hydraulic system |
| 4656201075 | HOUS.FRONT SECT | Front section housing that supports the input shaft and pump drive |
| 4656201079 | HOUSING REAR PART | Rear housing segment that contains the output shaft and parking brake |
| 4656298051 | HOUSING REAR SECTION | Additional rear section for extended wheelbase or PTO configurations |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing-to-housing positioning |
| 4656301148 | FIXING PLATE | Retaining plate for clutch piston springs |
| 0636100817 | CAP SCREW | High-tensile bolt for securing the valve body cover |
| 4656301016 | SCREEN SHEET | Fine mesh filter for the main hydraulic suction line |
| 4656301017 | SCREEN SHEET | Secondary filter screen for the lubrication circuit |
| 0636100803 | CAP SCREW | M12 bolt for final drive housing attachment |
Frequently Asked Questions
Q: Can the ZF 4656.054.175 be installed without replacing the housing sections?
A: Yes, but only if the existing TRANSMISSION HOUSING and HOUS.FRONT SECT are free from cracks and warpage. We recommend replacing all housing gaskets and seals during the swap.
Q: What is the typical lifespan of this complete powershift assembly?
A: Under normal operating conditions with proper maintenance (every 1,000 hours), the 4656.054.175 unit can last 8,000 to 12,000 hours before requiring a rebuild.
Q: Does this assembly include the valve body and solenoids?
A: No, the 4656.054.175 is a mechanical rotating assembly. The valve body and solenoids must be ordered separately. Check the FIXING PLATE and SCREEN SHEET for compatibility with your existing hydraulic controls.
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Phone: +86 158 2286 3467 |
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