Overview
The ZF 4642.309.024 OUTPUT FLANGE is a critical driveline component engineered for the WG 150 Series transmission. This OEM genuine part serves as the mechanical interface between the transmission output shaft and the propeller shaft, transferring rotational torque from the gearbox to the vehicle’s drivetrain. As a precision-machined flange, it ensures concentric alignment and vibration-free power delivery. The SKU 4642.309.024 is specifically designed to mate with the TRANSMISSION HOUSING (4642101109) and the TRANSMISSION HOUSING (4642301205), forming a sealed assembly that protects internal gears from contamination. When replacing this flange, technicians should also inspect the TYPE PLATE (0730365125) for correct model identification and verify the GROOVED STUD (0631311009) for secure mounting.
Symptoms of Failure
- Transmission fluid leaking from the output shaft seal area: A worn or cracked output flange allows oil to seep past the seal, leaving puddles under the vehicle and reducing lubrication levels.
- Vibration or driveline shudder during acceleration: Spline wear or flange distortion causes imbalance, transmitting harsh vibrations through the chassis at highway speeds.
- Clunking noise when shifting between forward and reverse: Excessive backlash in the flange-to-shaft connection produces audible metallic impacts during gear engagement.
- Difficulty maintaining gear engagement under load: A loose flange can cause the output shaft to shift axially, leading to intermittent power loss or gear slipping in the WG150 transmission.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4642.309.024 |
| OEM Reference | ZF 4642.309.024 |
| Material | Forged steel, induction-hardened |
| Outer 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) |
| Weight | 3.2 kg (7.05 lbs) |
| Spline Count | 24 internal splines |
| Torque Capacity | 1,500 Nm (1,106 lb-ft) |
Compatibility
This output flange is engineered for the ZF WG 150 Series transmission family. Based on its spline configuration and bolt pattern, it is compatible with the following ZF models: WG150, WG180, WG200, and WG210. It is also used in select ZF Ecomat 4HP and ZF Ecolife variants that share the same output shaft interface. Always cross-reference the TYPE PLATE (0730365125) on your transmission to confirm fitment before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Encloses gear train and supports shafts |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG150 |
| 0730365125 | TYPE PLATE | Identifies transmission model and specs |
| 0631311009 | GROOVED STUD | Secures flange to output shaft |
| 4642301168 | SCREEN SHEET | Filters debris from transmission fluid |
| 4642301169 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 0636100621 | HEXAGON SCREW | Fastens flange to transmission housing |
| 4642301186 | SCREEN SHEET | High-capacity filter element |
| 4644106300 | SHIFT SYSTEM | Controls gear selection mechanism |
| 4644306500 | COVER PLATE | Seals shift system access port |
