Overview
The ZF 4644.262.001 STATOR is a precision-engineered hydraulic component designed specifically for the WG200 series transmission. Positioned within the torque converter assembly, this OEM genuine part redirects fluid flow to multiply torque during low-speed operation, ensuring efficient power transfer from the engine to the gearbox. The SKU 4644.262.001 is manufactured to ZF’s exacting tolerances, making it a critical element for maintaining proper converter lock-up and overall drivetrain performance. When installed alongside a robust TRANSMISSION HOUSING (4644101176), this stator supports consistent hydraulic pressure across all operating ranges.
Symptoms of Failure
- Torque converter shudder or vibration during acceleration: A worn stator can cause intermittent slipping, leading to noticeable shaking when the vehicle is under load. This is a common search query for “ZF WG200 torque converter shudder fix.”
- Delayed engagement or sluggish takeoff: If the stator fails to redirect fluid properly, you may experience a lag when shifting from neutral to drive, often described as “transmission hesitation on startup.”
- Overheating transmission fluid: A seized or slipping stator generates excessive heat due to inefficient fluid circulation, frequently flagged in searches for “ZF transmission overheating causes.”
- Reduced fuel economy and power loss: As the stator loses its ability to multiply torque, the engine works harder, resulting in noticeable drops in mileage and acceleration performance.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4644.262.001 |
| Material | High-strength aluminum alloy with hardened steel splines |
| Weight | 1.85 kg (4.08 lbs) |
| Outer Diameter | 135 mm |
| Inner Diameter (Spline) | 28 mm |
| OEM Reference | ZF 4644.262.001 |
| Torque Capacity | Up to 620 Nm |
Compatibility
This stator is primarily engineered for the ZF WG200 series transmissions, including models WG180, WG200, and WG210. It is also compatible with certain variants of the ZF 6HP and 8HP series where the torque converter design matches the 28 mm spline interface. For proper fitment, always verify the stator’s orientation with the TRANSMISSION HOUSING (4644301371) and ensure the TYPE PLATE (0730365067) matches your unit’s serial number. Secure installation requires the GROOVED STUD (0631311009) to lock the stator in place.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101176 | TRANSMISSION HOUSING | Encloses gear train and supports bearing alignment |
| 4644301371 | TRANSMISSION HOUSING | Alternate housing variant for WG200 series |
| 0730365067 | TYPE PLATE | Identification plate with transmission model and serial |
| 0631311009 | GROOVED STUD | Secures stator and torque converter assembly |
| 4644303060 | COVER PLATE | Protects valve body from debris |
| 4644201011 | COVER PLATE | Seals rear transmission section |
| 4644201010 | COVER PLATE | Front cover plate for oil pump access |
| 4644301372 | COVER PLATE | Intermediate cover for clutch pack |
| 0636610028 | STUD | Mounting stud for housing alignment |
| 0634306525 | O-RING | Seals stator shaft to prevent fluid leaks |
