Overview
The ZF 2094.109.002 DIFFERENTIAL is a critical torque-distribution component engineered for heavy-duty construction machinery. Positioned within the final drive assembly of ZF powershift transmissions, this OEM genuine part transfers rotational force from the driveshaft to the axle shafts, allowing wheels to rotate at different speeds during turns. The SKU 2094.109.002 is precision-machined to maintain gear mesh accuracy under extreme loads, directly influencing traction and driveline efficiency. This differential integrates seamlessly with the 2094101017: TRANSMISSION HOUSING and the 2094301069: HOUSING, forming the core of the axle assembly.
Symptoms of Failure
- Grinding or whining noise during turns: Worn spider gears or side gears inside the 2094.109.002 cause metallic grinding sounds, especially when maneuvering at low speeds. This is a classic “differential noise on turns” failure.
- Oil leaks from axle housing: Degraded seals around the differential unit allow gear oil to escape. Look for puddles near the 2094298054: HOUSING interface, often accompanied by low lubricant levels.
- Uneven tire wear or wheel hop: A failing differential cannot distribute torque evenly, leading to one wheel spinning faster than the other. This manifests as “differential slipping under load” on uneven terrain.
- Hard shifting or driveline clunk: Excessive backlash in the differential gears creates a noticeable clunk when engaging the transmission or changing direction, often misdiagnosed as a transmission issue.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.109.002 |
| Type | Differential Assembly (Open or Limited-Slip) |
| Material | Case-Hardened Alloy Steel (Gears); Ductile Iron (Case) |
| Weight | Approx. 18.5 kg (40.8 lbs) |
| Dimensions (L x W x H) | 320 mm x 280 mm x 210 mm |
| OEM Reference | ZF 2094.109.002 |
| Bolt Torque Spec | 120 Nm (bearing cap bolts) |
Compatibility
This differential is designed for ZF powershift transmissions commonly found in wheel loaders, graders, and telehandlers. It is a direct fit for the ZF WG180 and ZF WG200 series, as well as the ZF 4WG-200 and ZF 6WG-200 models. The 2094.109.002 also integrates with older ZF 3WG-171 and ZF 4WG-180 drivelines. Always verify axle housing compatibility, particularly with the 0636302008: SCREW PLUG used for drain/fill ports on these assemblies.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101017 | TRANSMISSION HOUSING | Encloses gear train; mounts differential |
| 2094301069 | HOUSING | Axle housing section for differential support |
| 2094298054 | HOUSING | Final drive housing; seals differential |
| 0636302008 | SCREW PLUG | Seals oil fill/drain holes |
| 0634801165 | SEALING RING | Prevents oil leaks at plug interface |
| 0635460022 | BALL | Check valve ball for pressure relief |
| 2094301071 | COVER | Differential access cover |
| 2094301030 | GASKET | Seals cover-to-housing joint |
| 0750111371 | SHAFT SEAL | Prevents oil leakage at axle shaft exit |
| 0634303085 | O-RING | Seals hydraulic line connections |
