Overview
The ZF 2094.310.142 SLIDING SLEEVE is a precision-engineered OEM genuine component designed to facilitate smooth gear engagement within heavy-duty construction machinery transmissions. This part functions as a synchronizer hub, sliding axially along the main shaft to lock the selected gear to the output shaft, ensuring positive torque transfer. As a critical wear item, the 2094.310.142 sliding sleeve interfaces directly with the 2094101017: TRANSMISSION HOUSING and the 2094301069: HOUSING to maintain precise alignment during shifting cycles. The SKU 2094.310.142 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in high-cycle applications.
Symptoms of Failure
- Grinding or clashing noises during gear engagement – When the sliding sleeve’s internal splines wear, they fail to mesh cleanly with the gear hub, producing audible metal-on-metal contact. This symptom often leads to “hard shifting in construction loaders” and “transmission grinding under load” search queries.
- Intermittent gear slipping or pop-out – A worn sleeve cannot maintain full engagement depth, causing the transmission to unexpectedly disengage from gear, particularly under heavy torque. This is frequently reported as “ZF transmission jumps out of gear” in field service reports.
- Metallic debris in transmission oil – As the sliding sleeve’s hardened surface flakes or spalls, fine steel particles contaminate the lubricant. This manifests as “shiny particles on transmission drain plug” and accelerates wear on adjacent components like the 2094298054: HOUSING.
- Increased shift effort or stuck selector – Binding between the sleeve and shaft splines creates resistance in the shift linkage, often described as “stiff gear lever in ZF powershift” during cold operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2094.310.142 |
| Material | Case-hardened alloy steel (16MnCr5 equivalent) |
| Outside Diameter | 120 mm (estimated) |
| Inside Diameter (Spline) | 65 mm (estimated) |
| Length | 85 mm (estimated) |
| Weight | 1.45 kg (3.2 lbs) |
| Surface Treatment | Manganese phosphate + oil impregnation |
| OEM Reference | ZF 2094.310.142 |
| Torque Capacity | Up to 2,500 Nm (in WG series) |
Compatibility
This sliding sleeve is primarily designed for ZF’s WG series powershift transmissions used in construction machinery. It is a direct fit for the following transmission models: WG180, WG200, WG210, and WG250. These units are commonly found in wheel loaders, telehandlers, and backhoe loaders from manufacturers such as Liebherr, Volvo, and JCB. The sleeve also serves as a service replacement for certain 4WG-200 and 5WG-200 variants. Always verify spline count and shift fork slot width against your original part before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101017 | TRANSMISSION HOUSING | Encloses and supports all rotating assemblies |
| 2094301069 | HOUSING | Intermediate housing for clutch pack support |
| 2094298054 | HOUSING | Rear housing providing bearing alignment |
| 0636302008 | SCREW PLUG | Seals oil passages in the housing |
| 0634801165 | SEALING RING | Prevents oil bypass between stationary parts |
| 0635460022 | BALL | Check valve ball for pressure regulation |
| 2094301071 | COVER | Access cover for clutch inspection |
| 2094301030 | GASKET | Seals the cover-to-housing interface |
| 0750111371 | SHAFT SEAL | Prevents fluid leakage at rotating shafts |
| 0634303085 | O-RING | Static seal for hydraulic connections |
