Overview
The ZF 2095.313.009 PRESSURE PIN (SKU: 2095.313.009) is a precision-machined component engineered for the hydraulic control systems within ZF WG100, WG130, and WG131 transmissions. This OEM genuine part acts as a critical interface between the valve body and clutch pack assemblies, transmitting precise hydraulic pressure to engage or disengage gear sets. Located within the transmission’s spring and fastener assembly, the pressure pin ensures consistent force application during shifting operations. When paired with a properly functioning 5838109007: DIFFERENTIAL, it helps maintain smooth power delivery under heavy loads.
Symptoms of Failure
When the ZF 2095.313.009 pressure pin wears or fractures, operators often notice distinct operational issues. Look for these specific failure indicators:
- Delayed or harsh shifting – The pin fails to maintain consistent hydraulic pressure, causing erratic gear engagement, especially during upshifts under load.
- Transmission slipping in higher gears – Worn pins reduce clamping force on clutch packs, leading to power loss in WG100/WG130 units.
- Hydraulic fluid contamination – Metal debris from a fractured pressure pin can circulate through the system, damaging the 0750117075: TAPER ROLLER BEARING and adjacent valve bodies.
- Intermittent neutral conditions – The pin may stick in its bore, temporarily disengaging drive in WG131 models during low-speed maneuvers.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2095.313.009 |
| Material | Case-hardened alloy steel (HRC 58-62) |
| Overall Length | 38.5 mm |
| Outer Diameter | 12.0 mm |
| Weight | 0.034 kg |
| OEM Reference | ZF 2095.313.009 |
| Surface Finish | Ground & polished (Ra 0.4 μm) |
| Compatible Spring | Integrated with 0631329086: SPRING PIN assembly |
Compatibility
This pressure pin is specifically validated for ZF WG-series transmissions. It is a direct replacement for the following models:
- ZF WG100 – All variants (1998-2012 production)
- ZF WG130 – Standard and heavy-duty configurations
- ZF WG131 – Including models with integrated retarder
- ZF WG180 – Limited compatibility (verify bore depth)
- ZF WG200 – Requires inspection of adjacent 2095209019: DIFFERENTIAL assembly for clearance
Always confirm the pin’s free movement within the valve body bore before installation. For WG180/WG200 applications, measure the existing pin length to ensure proper preload.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports axial and radial loads on main shaft |
| 2095209019 | DIFFERENTIAL | Rear planetary gear set carrier |
| 0631329086 | SPRING PIN | Retains pressure pin within valve body bore |
| 5838300817 | THRUST WASHER | Reduces axial friction in clutch drum |
| 5838300682 | DIFFERENTIAL AXLE | Cross-shaft for planetary gear set |
| 5838300811 | THRUST WASHER | Spacer for output shaft assembly |
| 5841302064 | THRUST WASHER | Bearing surface for sun gear |
| 5838300137 | OUTER CLUTCH DISK | Steel friction plate for clutch pack |
| 5838300138 | INNER CLUTCH DISK | Friction-lined plate for torque transfer |
