Overview
The ZF 4616.105.417 VALVE for WG65 is a precision hydraulic control component engineered for the WG 65 Series transmission family. This OEM genuine part regulates oil flow and pressure within the valve body assembly, directly influencing shift timing and clutch engagement. As a critical element of the transmission’s hydraulic circuit, the SKU 4616.105.417 ensures consistent modulation of fluid to the clutch packs. When installed alongside a 0501319251: SOLENOID VALVE, it forms the core of the electro-hydraulic control system, dictating gear selection accuracy under heavy-duty industrial loads.
Symptoms of Failure
- Delayed or harsh shifting – A worn 4616.105.417 valve often causes sluggish engagement between gears, particularly when the transmission is cold. This manifests as a noticeable lag before the vehicle moves after selecting Drive or Reverse.
- Intermittent gear slipping under load – If the valve fails to maintain proper hydraulic pressure, the transmission may momentarily lose power during acceleration, especially on inclines or when towing heavy equipment.
- External oil seepage near the valve body – Degraded sealing surfaces on the valve can lead to fluid leaks around the mounting area. You may observe drips or wet spots on the transmission housing, often requiring replacement of the 0634801038: SEALING RING during service.
- Erratic pressure readings – Fluctuating line pressure during diagnostic testing indicates internal wear of the valve spool or bore, compromising the transmission’s ability to maintain steady clutch application.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 4616.105.417 |
| Product Type | Hydraulic Control Valve |
| Material | Hardened Steel with Corrosion-Resistant Coating |
| Weight | 0.45 kg (approx.) |
| Length | 85 mm |
| Width | 32 mm |
| Height | 28 mm |
| OEM Reference | ZF 4616.105.417 |
| Operating Pressure Range | 10–25 bar |
| Seal Type | NBR O-Ring (compatible with 0634801038) |
Compatibility
This valve is specifically designed for the ZF WG 65 Series, including the WG65, WG80, WG120, WG150, WG180, and WG200 transmission models. It is a direct-fit replacement for OEM applications in construction machinery, agricultural tractors, and material handling equipment. For proper installation, ensure the valve bore is clean and free of debris. Always pair this part with a new 0636302013: SCREW PLUG to secure the valve body cavity and a 4616305078: CONSOLE for mounting stability in the transmission housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0501319251 | Solenoid Valve | Electrically modulates hydraulic flow to the valve |
| 0636302013 | Screw Plug | Seals the valve body access port |
| 0634801038 | Sealing Ring | Prevents fluid leakage at valve interfaces |
| 4616305078 | Console | Provides structural support for the valve assembly |
| 0636010047 | Hexagon Screw | Fastens the valve to the transmission housing |
| 0636101020 | Cap Screw | Secures the console bracket |
| 0630001010 | Washer | Distributes load under fasteners |
| 0637006015 | Hexagon Nut | Locks threaded connections |
| 0637842523 | Screw-in Sleeve | Guides hydraulic fluid passages |
| 0501214907 | Hose Pipe | Transmits oil between valve and cooler |
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