Overview
The ZF 4108.016.054 P 4300 is an OEM genuine internal clutch piston or hydraulic actuator component specifically engineered for heavy-duty construction machinery transmissions. This part sits within the main valve body or clutch pack assembly of ZF powershift transmissions, where it directs hydraulic pressure to engage and disengage gear sets. As a precision-machined component, the SKU 4108.016.054 ensures consistent oil flow and positive clutch locking under extreme torque loads. It is frequently replaced alongside the 4108101110 HOUSING and the 4108201261 HOUSING, as these parts form the sealed pressure chamber that governs shift timing.
Symptoms of Failure
- Delayed or harsh gear engagement – When the 4108.016.054 piston loses sealing integrity, hydraulic pressure drops, causing sluggish shifts or sudden clunking during acceleration.
- Internal transmission oil leaks – Worn seals on this part allow ATF to bypass the clutch pack, leading to low fluid levels and visible drips from the bell housing or vent.
- Intermittent gear slipping under load – A failing actuator cannot maintain clamping force on clutch discs, resulting in RPM flare without corresponding vehicle speed, especially on inclines.
- Erratic shift patterns – The transmission may skip gears or fail to hold a selected range due to inconsistent hydraulic feedback from a degraded 4108.016.054 unit.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 4108.016.054 |
| OEM Reference | ZF P 4300 |
| Material | Hardened alloy steel with nitrile sealing surface |
| Outer Diameter | 68.5 mm (2.70 in) |
| Inner Diameter | 32.0 mm (1.26 in) |
| Height / Length | 42.0 mm (1.65 in) |
| Weight | 0.34 kg (0.75 lb) |
| Seal Type | Integrated PTFE lip seal |
Compatibility
This genuine ZF 4108.016.054 component is designed for use in the following ZF transmission models commonly found in wheel loaders, excavators, and telehandlers: WG180, WG200, 4WG200, and 6WG200 series. It also fits select P 4300 splitter boxes. Always verify the 0501215601 OIL LEVEL GAGE and the 4108301293 BEARING COVER for correct installation clearance during rebuilds.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101110 | HOUSING | Encloses the clutch piston assembly |
| 4108201261 | HOUSING | Secondary housing for hydraulic feed passages |
| 0501215601 | OIL LEVEL GAGE | Verifies correct fluid level after service |
| 4108301293 | BEARING COVER | Protects output shaft bearing from debris |
| 4108306172 | GASKET | Seals mating surfaces to prevent oil leaks |
| 0730365280 | TYPE PLATE | Identification tag for transmission model |
| 4108301436 | INPUT SHAFT | Transfers engine torque to gear train |
| 0735330931 | BALL BEARING | Supports rotating shaft with minimal friction |
| 0630532160 | RETAINING RING | Axial lock for bearing or gear |
| 0630531130 | RETAINING RING | Internal snap ring for housing retention |
