Overview
The ZF 4660.103.801 OUTPUT for WG92 is a critical driveline component engineered to transfer torque from the transmission’s planetary gearset to the output shaft flange. Positioned at the rear of the WG92 series housing, this OEM genuine part ensures precise rotational alignment and load distribution during high-torque operations. The SKU 4660.103.801 is machined from hardened alloy steel to withstand continuous stress in heavy-duty applications, making it a direct replacement for failed or worn output assemblies in ZF off-highway transmissions.
Symptoms of Failure
- Oil leaks at the rear seal interface – Worn splines or bearing surfaces on the 4660.103.801 can cause seal misalignment, leading to fluid seepage around the output flange.
- Gear slipping under load – A fatigued output hub may allow the clutch pack to disengage intermittently, resulting in power loss during acceleration or uphill travel.
- Vibration or driveline shudder – Excessive play in the output assembly creates harmonic imbalance, felt as shaking through the chassis at specific RPM ranges.
- Delayed engagement from Park to Drive – Worn internal splines on the output component can cause hesitation before torque is transmitted to the wheels.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4660.103.801 |
| Material | Hardened Alloy Steel (40CrMnMoS8-6) |
| Weight | 2.85 kg (6.28 lbs) |
| Outer Diameter | 120 mm |
| Overall Length | 185 mm |
| Spline Count | 21 (internal) / 27 (external) |
| OEM Reference | ZF 4660.103.801 |
| Torque Capacity | 1,200 Nm (885 lb-ft) |
Compatibility
This output component is specifically designed for the ZF WG92 series transmission family. It is also compatible with the WG180, WG200, and WG240 models when used in conjunction with the correct 4660198001: PERIPHERALS kit. For proper assembly, always pair the output with the 0501209818: RANGE SELECTOR to ensure correct shift logic. The 4660101011: TRANSMISSION HOUSING and 4660301018: HOUSING provide the structural envelope for this output assembly. Always verify transmission serial numbers before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | Peripherals | Mounting hardware and seals for output assembly |
| 0501209818 | Range Selector | Controls gear ratio selection via hydraulic spool |
| 4660101011 | Transmission Housing | Main structural casing for gear train |
| 4660301018 | Housing | Rear cover housing for output shaft support |
| 0631306174 | Cylindrical Pin | Alignment pin for housing-to-output positioning |
| 0769123894 | Type Plate | Identification plate with transmission specs |
| 4660221012 | Suction Tube | Oil pickup tube for lubrication circuit |
| 0634100317 | O-Ring | Seal between output flange and housing |
| 0636103273 | Cap Screw | Fastener for output flange retention |
| 0750100022 | Screw Plug | Drain/fill plug for output cavity |
