Overview
The ZF 4108.014.015 P 3300 is a genuine OEM hydraulic control unit designed for heavy-duty powershift transmissions used in construction machinery. This precision-engineered component regulates oil flow and pressure within the valve body assembly, ensuring smooth clutch engagement and reliable gear shifts under extreme loads. As part number 4108.014.015, it is a direct replacement for original equipment, maintaining the exact tolerances required for ZF transmission longevity. The part sits within the main control housing, interfacing directly with the 4108101061 HOUSING and the 4108201156 HOUSING to form a sealed hydraulic circuit.
Symptoms of Failure
- Erratic or delayed gear engagement – When the 4108.014.015 wears internally, hydraulic pressure drops, causing hesitation or harsh shifting during operation.
- Transmission oil leaks at the valve body – Deteriorated seals or cracks in this unit allow ATF to escape, often pooling around the 4108301304 BEARING COVER area.
- Intermittent loss of forward or reverse – A failing control unit may fail to direct oil to specific clutches, resulting in temporary drive loss under load.
- Overheating transmission fluid – Restricted internal passages cause excessive heat buildup, accelerating wear on adjacent components like the 4108306173 GASKET.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4108.014.015 |
| OEM Reference | ZF P 3300 |
| Material | High-grade aluminum alloy with hardened steel spools |
| Weight | 2.4 kg (5.3 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 95 mm |
| Seal Type | Nitrile rubber O-rings (included) |
| Operating Pressure | 12–18 bar (174–261 psi) |
Compatibility
This genuine ZF part is engineered for use in the following transmission families commonly found in wheel loaders, graders, and dump trucks:
- ZF WG180
- ZF WG200
- ZF WG210
- ZF 4WG-200
- ZF 4WG-210
Always verify your transmission serial number before ordering. The 4108.014.015 replaces earlier revisions and is backward-compatible with most WG-series valve bodies.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101061 | HOUSING | Encloses the valve body assembly |
| 4108201156 | HOUSING | Secondary housing for hydraulic passages |
| 4108301304 | BEARING COVER | Seals and protects the output bearing |
| 4108306173 | GASKET | Prevents fluid leaks between mating surfaces |
| 0730365280 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Fastener for housing alignment |
| 4108301339 | INPUT SHAFT | Transfers torque from engine to transmission |
| 0750116277 | BALL BEARING | Supports rotating shaft loads |
| 0630502039 | RETAINING RING | Secures bearings in position |
| 0630000041 | SHIM RING | Adjusts axial play in the gear train |
