Overview
The ZF 4644.103.083 OUTPUT for WG200 is a critical OEM genuine component engineered to transfer rotational force from the transmission’s planetary gear set to the driveline. Positioned at the rear of the main housing, this output shaft assembly interfaces directly with the 4644101235: TRANSMISSION HOUSING to ensure precise torque delivery and alignment. The SKU 4644.103.083 is machined from high-strength alloy steel to withstand continuous heavy-load cycles in construction and municipal vehicles. As a factory-spec part, it guarantees exact fitment within the WG 200 Series without requiring modifications to the 4644301310: TRANSMISSION HOUSING or the 0730365067: TYPE PLATE assembly.
Symptoms of Failure
When the ZF 4644.103.083 OUTPUT begins to degrade, operators often notice “ZF WG200 output shaft oil leaks” around the rear seal area, caused by worn bearing surfaces. A second common failure sign is “gear slipping under load in WG200 transmissions”, where the output shaft loses spline engagement, leading to intermittent power loss. Third, listen for “grinding noise from transmission output during deceleration”, which indicates pitting or scoring on the shaft’s contact surfaces. Finally, “vibration in the driveline at highway speeds” can occur when the output shaft’s balance is compromised, accelerating wear on the 4644106301: SHIFT SYSTEM components.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4644.103.083 |
| Material | Alloy Steel (case-hardened) |
| Overall Length | 385 mm |
| Shaft Diameter | 45 mm (bearing journal) |
| Spline Count | 24 (internal) / 32 (external) |
| Weight | 4.2 kg |
| OEM Reference | ZF 4644.103.083 |
| Surface Treatment | Black oxide + phosphate |
Compatibility
This output shaft is specifically designed for the ZF WG 200 Series transmissions, including the WG180, WG200, and WG210 variants. It also fits select ZF Ecolife models that share the same output architecture. The part is not interchangeable with older WG150 or WG160 units due to differing spline profiles. For proper installation, always verify that the 4644301310: TRANSMISSION HOUSING is free of cracks and that the 0730365067: TYPE PLATE matches the transmission serial number.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101235 | TRANSMISSION HOUSING | Encloses gear train and supports output shaft |
| 4644301310 | TRANSMISSION HOUSING | Alternate housing for WG200 variants |
| 0730365067 | TYPE PLATE | Identification plate with transmission specs |
| 4644106301 | SHIFT SYSTEM | Controls clutch engagement and gear selection |
| 4644306507 | COVER PLATE | Seals the output shaft access port |
| 4644159302 | SHIFT SYSTEM | Secondary shift actuator for WG200 |
| 4644306560 | VALVE BLOCK | Hydraulic control manifold for shift pressure |
| 4644306408 | WASHER | Thrust washer for output shaft preload |
| 4644306513 | COVER | Protective cover for output bearing |
| 4644306555 | COVER | Dust cover for rear seal area |
