Overview
The ZF 4460.355.254 INPUT FLANGE is a critical driveline component engineered specifically for the WG 200 series powershift transmission. This OEM genuine part serves as the primary mechanical interface between the transmission output shaft and the vehicle’s driveshaft, transmitting torque from the gearbox to the wheels. Positioned at the rear of the transmission assembly, the input flange is precision-machined to ensure concentric rotation and zero runout under heavy loads. The SKU 4460.355.254 is manufactured to ZF’s exacting tolerances, guaranteeing a direct bolt-on replacement without modification. When paired with a robust TRANSMISSION HOUSING (4644101234) or the alternative TRANSMISSION HOUSING (4644301282), this flange maintains the structural integrity of the entire drivetrain.
Symptoms of Failure
- Driveshaft vibration at highway speeds: A worn or warped input flange causes imbalance, leading to noticeable shaking that intensifies with RPM.
- Transmission fluid seepage around the output seal: Cracks or corrosion on the flange mating surface allow oil to escape, often mistaken for a rear seal failure.
- Clunking noise during gear engagement: Spline wear on the flange creates backlash, producing a metallic thud when shifting from neutral to drive or reverse.
- Premature U-joint or bearing wear: A misaligned flange transfers abnormal stress to downstream components, accelerating failure of the driveshaft and differential.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4460.355.254 |
| Material | High-strength forged steel (C45 or equivalent) |
| Overall Diameter | 180 mm (7.09 in) |
| Bolt Circle Diameter | 150 mm (5.91 in) |
| Center Bore Diameter | 45 mm (1.77 in) |
| Overall Length | 85 mm (3.35 in) |
| Spline Count | 14 (internal, 1.5 module) |
| Weight | 2.8 kg (6.2 lbs) |
| OEM Reference | ZF 4460.355.254 |
| Surface Finish | Zinc-plated with black passivation |
Compatibility
This input flange is designed for the ZF WG 200 series powershift transmissions, including the WG180, WG200, and WG210 variants. It is also compatible with select ZF 4WG-200 and 6WG-200 models used in off-highway equipment, wheel loaders, and agricultural tractors. For proper installation, ensure the transmission housing is free of debris and that the ADAPTER (4475280078) is correctly seated. Always verify the TYPE PLATE (0730365067) on your transmission to confirm model and serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101234 | TRANSMISSION HOUSING | Encloses and supports gear train and shafts |
| 4644301282 | TRANSMISSION HOUSING | Alternative housing for WG200 series |
| 4475280078 | ADAPTER | Connects flange to transmission output shaft |
| 0730365067 | TYPE PLATE | Identification plate with model and serial number |
| 0631311009 | GROOVED STUD | Secures flange to housing with positive locking |
| 4644106300 | SHIFT SYSTEM | Controls gear selection and clutch engagement |
| 4644306500 | COVER PLATE | Seals the shift system compartment |
| 4644159300 | SHIFT SYSTEM | Alternate shift assembly for WG200 |
| 4644306560 | VALVE BLOCK | Manages hydraulic pressure for clutch packs |
| 4644306408 | WASHER | Thrust washer for axial load distribution |
