Overview
The ZF 2094.111.021 OUTPUT (SKU: 2094.111.021) is a critical OEM genuine component designed for the output section of ZF heavy-duty transmissions. This part serves as the primary interface between the transmission and the driveline, transferring rotational torque from the planetary gear set to the output flange. Located at the rear of the transmission housing, it ensures precise alignment and load distribution during high-stress operations in construction machinery. The 2094.111.021 output component works in concert with the 2094101017: TRANSMISSION HOUSING and the 2094301069: HOUSING to maintain structural integrity under extreme torque loads.
Symptoms of Failure
- Oil leaks at the output shaft seal: When the 2094.111.021 output wears, hydraulic fluid often escapes past the seal, leaving puddles under the transmission. This is a common symptom in ZF WG-series units operating in excavators.
- Gear slipping under load: A worn output component can cause intermittent loss of power transfer, especially during heavy digging or lifting. Operators may notice the transmission “hunting” for gears on inclines.
- Vibration or driveline shudder: Excessive play in the output section leads to driveline oscillations at specific RPM ranges, often mistaken for universal joint issues.
- Metallic debris in transmission fluid: Spalling or pitting on the output surface generates fine metal particles, detectable during routine oil changes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2094.111.021 |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Outer Diameter | 112 mm (est.) |
| Overall Length | 185 mm (est.) |
| Weight | 2.8 kg (est.) |
| OEM Reference | ZF Friedrichshafen AG |
| Surface Finish | Ground and polished (Ra ≤ 0.8 µm) |
| Heat Treatment | Carburized and tempered to HRC 58-62 |
Compatibility
This OEM genuine output component is engineered for ZF power shift transmissions commonly found in construction machinery. Based on its design and spline configuration, the 2094.111.021 is compatible with the following ZF models: WG180, WG200, and WG211 series. It also fits select variants of the WG150 and WG250 transmissions used in wheel loaders and dozers. For proper installation, ensure the 2094298054: HOUSING is free of wear and that the 0636302008: SCREW PLUG is torqued to factory specifications to prevent fluid bypass.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101017 | TRANSMISSION HOUSING | Encases the gear train and output assembly |
| 2094301069 | HOUSING | Supports the output shaft bearing |
| 2094298054 | HOUSING | Rear cover for the output section |
| 0636302008 | SCREW PLUG | Seals the oil drain or fill port |
| 0634801165 | SEALING RING | Prevents fluid leakage at joints |
| 0635460022 | BALL | Check valve component for hydraulic circuits |
| 2094301071 | COVER | Protects the output shaft end |
| 2094301030 | GASKET | Provides a leak-proof seal between housings |
| 0750111371 | SHAFT SEAL | Dynamic seal for the rotating output shaft |
| 0634303085 | O-RING | Static seal for hydraulic ports |
