Overview
The ZF 4644.105.417 DISCONNECTION is a critical OEM genuine component engineered specifically for the WG 200 Series transmission. This part functions as a mechanical isolation device, enabling the selective engagement and disengagement of the transmission’s output shaft from the driveline. Positioned within the rear housing assembly, it ensures precise torque interruption during gear shifts and stationary operations. The SKU 4644.105.417 is manufactured to ZF’s exacting tolerances, guaranteeing seamless integration with the 4644303547: OUTPUT FLANGE and 4644303012: OUTPUT FLANGE to maintain driveline integrity.
Symptoms of Failure
- Intermittent gear slipping under load: A worn 4644.105.417 disconnection unit can cause unexpected torque loss, particularly during uphill climbs or heavy hauling, leading to erratic shifting patterns.
- Hydraulic fluid seepage near the output housing: Degraded seals within this part often result in oil leaks around the 4644101121: TRANSMISSION HOUSING, leaving visible puddles under the vehicle.
- Delayed engagement when shifting from neutral to drive: Failure of the disconnection mechanism produces a noticeable lag, often accompanied by a clunking sound, as the transmission struggles to lock the output shaft.
- Vibration or shuddering during low-speed maneuvers: A compromised disconnection assembly can induce driveline oscillations, especially when paired with a misaligned 4644301240: TRANSMISSION HOUSING.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4644.105.417 |
| OEM Reference | ZF WG200 Series |
| Material | High-tensile steel with corrosion-resistant coating |
| Weight | 1.8 kg (approx.) |
| Dimensions (L x W x H) | 145 mm x 95 mm x 60 mm |
| Operating Temperature Range | -40°C to +120°C |
| Torque Capacity | Up to 2,500 Nm |
Compatibility
This OEM genuine disconnection part is primarily designed for the ZF WG 200 Series transmissions, including models WG200, WG180, and WG150. It is also compatible with select variants of the WG 211 and WG 220 series where the output shaft configuration matches. For optimal performance, always verify fitment with your specific transmission serial number. The part integrates directly with the 4644303547: OUTPUT FLANGE and 4644303012: OUTPUT FLANGE to ensure secure torque transmission.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644303547 | OUTPUT FLANGE | Connects transmission output to driveshaft |
| 4644303012 | OUTPUT FLANGE | Alternative flange for torque transfer |
| 4644101121 | TRANSMISSION HOUSING | Encloses internal gearset and shafts |
| 4644301240 | TRANSMISSION HOUSING | Rear housing for output assembly |
| 0730365067 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Fastener for housing alignment |
| 4644301286 | COVER PLATE | Seals the disconnection access port |
| 4644301242 | COVER SHEET | Protective shield for internal components |
| 0636101026 | CAP SCREW | Secures housing and flanges |
| 4644301279 | SCREEN SHEET | Filters debris from hydraulic fluid |
