Overview
The ZF 2094.310.091 COVER is a critical OEM genuine component designed to seal and protect the internal mechanisms of heavy-duty ZF transmissions used in construction machinery. This part, identified by SKU 2094.310.091, mounts directly onto the TRANSMISSION HOUSING to prevent contamination from debris, moisture, and dust while maintaining proper oil pressure within the gear train. As a factory-spec cover, it ensures structural integrity at the rear or side access point of the transmission, directly interfacing with the HOUSING assembly. Without this cover, the transmission’s internal components—including clutches and planetary gears—are exposed to premature wear and hydraulic inefficiency.
Symptoms of Failure
When the ZF 2094.310.091 COVER begins to fail, operators and fleet managers often notice distinct warning signs. Look for these specific failure symptoms to diagnose the issue early:
- Oil leaks around the transmission housing: A cracked or warped cover allows transmission fluid to seep out, leaving visible puddles under construction equipment.
- Gear slipping or delayed engagement: Loss of hydraulic pressure from a compromised cover leads to erratic shifting, especially under load.
- Contaminated transmission fluid: Dirt and water ingress through a damaged cover causes fluid discoloration and reduces lubrication efficiency.
- Unusual whining or grinding noises: Insufficient sealing allows metal particles to enter the gear train, accelerating internal wear.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number (SKU) | 2094.310.091 |
| Material | Die-cast aluminum alloy (high tensile strength) |
| Weight | 1.2 kg (2.65 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 25 mm |
| OEM Reference | ZF Friedrichshafen AG |
| Surface Treatment | Corrosion-resistant coating |
| Bolt Pattern | 6-hole, M10 thread |
Compatibility
This ZF 2094.310.091 COVER is engineered for use in ZF’s WG series transmissions commonly deployed in construction machinery, including wheel loaders, graders, and excavators. It is directly compatible with the following ZF transmission models:
- WG180 (used in compact loaders)
- WG200 (medium-duty wheel loaders)
- WG210 (heavy-duty graders)
- WG310 (large excavators and dozers)
Always verify fitment by cross-referencing your existing part number. For a complete seal, pair this cover with the BALL detent mechanism and the COVER gasket to ensure zero leakage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101011 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 2094301045 | HOUSING | Secondary housing for valve body or clutch pack |
| 0635460022 | BALL | Steel ball for detent or check valve function |
| 2094301044 | COVER | Secondary access cover for inspection ports |
| 0750111371 | SHAFT SEAL | Prevents oil leakage around rotating shafts |
| 0634303085 | O-RING | Static seal for cover-to-housing interface |
| 2094301030 | GASKET | Compressible seal for cover mounting surface |
| 0631306670 | CYLINDRICAL PIN | Alignment pin for precise cover positioning |
| 0636011356 | HEXAGON SCREW | Fastener for securing cover to housing |
| 4475280060 | SCREW PLUG | Seals oil drain or fill ports in the cover |
