Overview
The ZF 4660.103.804 OUTPUT for WG200/WG92 is a critical driveline component engineered to transfer torque from the transmission’s planetary gearset to the output flange. Positioned at the rear of the gearbox, this OEM genuine part ensures precise rotational alignment and load distribution under high-stress operating conditions. The SKU 4660.103.804 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged outputs in heavy-duty industrial applications. When installed alongside the 4660101011: TRANSMISSION HOUSING, it maintains the structural integrity required for sustained performance in construction, mining, and agricultural machinery.
Symptoms of Failure
- Oil leaks near the output seal: A worn 4660.103.804 output often causes fluid seepage around the rear housing, leading to low transmission fluid levels and potential overheating.
- Gear slipping under load: When the output shaft splines degrade, torque transfer becomes inconsistent, resulting in intermittent slipping during acceleration or uphill operation.
- Excessive driveline vibration: Bearing surface wear on the output creates harmonic vibrations that amplify through the driveshaft, particularly at speeds above 30 mph.
- Metallic debris in transmission fluid: Spalling from the output’s hardened steel surface contaminates the oil, often detected during routine filter inspections.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4660.103.804 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 3.2 kg (7.05 lbs) |
| Overall Length | 215 mm |
| Spline Count | 24 (involute, DIN 5480) |
| Surface Hardness | 58-62 HRC |
| OEM Reference | ZF 4660.103.804 |
| Operating Torque Capacity | 1,200 Nm (885 ft-lbs) |
Compatibility
This output is specifically designed for ZF WG200 and WG92 series transmissions, including models WG180, WG200, WG92, and WG150. It directly replaces the original output in both 2-speed and 4-speed variants. For proper installation, ensure the 4660301018: HOUSING is free of cracks, and verify that the 0631306174: CYLINDRICAL PIN aligns correctly with the output’s locating bore. The 0769123894: TYPE PLATE should be inspected for legibility to confirm transmission model identification.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101011 | TRANSMISSION HOUSING | Encloses gearset and supports output shaft bearings |
| 4660301018 | HOUSING | Rear housing section that seals the output area |
| 0631306174 | CYLINDRICAL PIN | Aligns output shaft to housing during assembly |
| 0769123894 | TYPE PLATE | Identification plate for transmission model and serial number |
| 4660221012 | SUCTION TUBE | Draws fluid from sump to pump |
| 0634100317 | O-RING | Seals output housing joint against leaks |
| 0636103273 | CAP SCREW | Fastens output flange to shaft |
| 0750100022 | SCREW PLUG | Closes oil drain or fill ports |
| 4660101804 | TRANSMISSION HOUSING | Alternate housing variant for WG200 series |
| 4660301008 | HOUSING | Early design housing for WG92 transmissions |
