Overview
The ZF 4657.056.196 6 WG 210 Powershift Transmission Assembly | Complete Unit is a fully assembled, factory-grade replacement for heavy-duty powershift transmissions used in construction, agricultural, and material handling equipment. This complete unit integrates the main gear train, clutch packs, and hydraulic control system into a single, ready-to-install package. As a core component of the WG 210 series, it replaces the entire transmission assembly to restore original performance after catastrophic failure or high-hour rebuilds. The SKU 4657.056.196 is the direct OEM reference for this complete unit, ensuring precise fitment and eliminating guesswork during procurement.
Symptoms of Failure
When the ZF 4657.056.196 assembly begins to fail, operators typically notice these specific warning signs:
- Erratic shifting or gear slipping under load — Worn clutch packs or hydraulic valve body issues cause the transmission to hesitate or lose torque during operation, especially when climbing grades or carrying heavy loads.
- External oil leaks from housing joints — Cracks or fatigue in the TRANSMISSION HOUSING or HOUS.FRONT SECT allow transmission fluid to escape, leading to low pressure and eventual overheating.
- Loud grinding or whining noises from the bell housing — Bearing failure or gear tooth damage inside the assembly produces metallic sounds that intensify with engine RPM.
- Delayed engagement when shifting from neutral to drive — Internal seal degradation or pump wear reduces hydraulic pressure, causing a 2-5 second lag before the transmission engages.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | 4657.056.196 |
| Assembly Type | Complete Powershift Transmission Unit |
| Series | WG 210 |
| Overall Length (approx.) | 780 mm |
| Overall Width (approx.) | 520 mm |
| Overall Height (approx.) | 610 mm |
| Dry Weight (approx.) | 385 kg |
| Housing Material | High-strength cast iron |
| OEM Reference | ZF 4657.056.196 |
| Related Housing Parts | HOUSING REAR PART, HOUSING REAR SECTION |
| Fasteners & Hardware | CAP SCREW, CAP SCREW, CYLINDRICAL PIN |
| Internal Components | FIXING PLATE, SCREEN SHEET, SCREEN SHEET |
Compatibility
This ZF 4657.056.196 complete unit is designed primarily for the WG 210 series transmissions. Based on its housing architecture and clutch configuration, it is also compatible with the following ZF powershift models: WG 180, WG 200, and WG 211 (with minor adapter plate modifications). It is commonly found in ZF-equipped loaders, graders, and telescopic handlers from manufacturers such as Volvo, Case, and JCB. Always verify the existing transmission serial number against the SKU before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing input shaft and pump |
| 4657201170 | HOUSING REAR PART | Rear casing supporting output flange |
| 4657298102 | HOUSING REAR SECTION | Alternate rear housing variant for WG 210 |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | M12 bolt for securing housing sections |
| 4656301148 | FIXING PLATE | Retains clutch pack assembly in place |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | M10 bolt for valve body mounting |
