Overview
The ZF 0501.320.204 SOLENOID VALVE is a critical electro-hydraulic actuator within the WG90, WG92, and WG98 transmission series. This OEM genuine part modulates hydraulic pressure to control clutch engagement and gear shifts. Positioned on the valve body assembly, it receives electrical signals from the transmission control unit (TCU) to direct oil flow precisely. The SKU 0501.320.204 is engineered to ZF’s exacting tolerances, ensuring reliable operation in heavy-duty commercial vehicles and off-highway equipment. When paired with a robust 4660101023: TRANSMISSION HOUSING, this solenoid valve maintains consistent hydraulic circuit integrity under high thermal loads.
Symptoms of Failure
- Erratic or delayed gear engagement: A failing 0501.320.204 solenoid valve often causes hesitation when shifting from neutral to drive or reverse, especially in WG92 and WG98 transmissions.
- Transmission oil leaks near the valve body: Worn internal seals or corrosion on the solenoid can produce fluid seepage around the mounting point, often mistaken for a housing gasket failure.
- Intermittent gear slipping under load: When the solenoid fails to maintain proper pressure, the transmission may slip between gears during acceleration, triggering fault codes in the TCU.
- Harsh or clunky shifting: A stuck or slow-responding solenoid valve can cause abrupt clutch engagement, leading to driveline shock and premature wear on components like the 0631306174: CYLINDRICAL PIN.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0501.320.204 |
| Type | Normally Closed Solenoid Valve |
| Operating Voltage | 12V / 24V DC (PWM controlled) |
| Max Pressure Rating | 18 bar (261 psi) |
| Body Material | Hardened Steel with Zinc-Nickel Plating |
| Seal Material | NBR (Nitrile Rubber) |
| Weight | 0.45 kg (1.0 lb) |
| OEM Reference | ZF 0501.320.204 |
| Thread Size | M12 x 1.5 |
Compatibility
This solenoid valve is engineered for ZF’s WG series powershift transmissions, specifically the WG90, WG92, WG94, and WG98 models. It is a direct replacement for units used in ZF WG180, WG200, and WG210 configurations found in agricultural tractors, wheel loaders, and industrial forklifts. The valve interfaces with the 4660301058: HOUSING and requires a 0750100022: SCREW PLUG for proper sealing during installation. Always verify your transmission serial number against ZF’s parts catalog to confirm fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101023 | TRANSMISSION HOUSING | Encloses gear train and valve body assembly |
| 4660301058 | HOUSING | Supports solenoid valve mounting and oil galleries |
| 0631306174 | CYLINDRICAL PIN | Aligns valve body to transmission case |
| 0750100022 | SCREW PLUG | Seals unused hydraulic ports |
| 4660301009 | BRACKET | Secures solenoid wiring harness |
| 4660221039 | TUBE | Routes oil from valve to clutch pack |
| 0636103274 | CAP SCREW | Fastens valve body to housing |
| 0634306185 | O-RING | Prevents fluid leakage at solenoid base |
| 4660221041 | TUBE | Secondary oil feed line |
| 4660221040 | TUBE | Return oil line to sump |
ZF 0501.320.204 SOLENOID VALVE – Solenoid Valve RFQ Support
PartsZF helps B2B buyers source ZF 0501.320.204 SOLENOID VALVE with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This solenoid valve page is built from confirmed catalog, media, and reference data to reduce sourcing uncertainty for construction machinery transmission parts.
Part-Number Summary
Use ZF number 0501.320.204 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: CONTROL UNIT
- Illustration section: SHIFT SYSTEM
- Illustration section: COUPLING
Cross Reference Support
If you have an OEM number, old supplier number, or visible marking, include it with your RFQ so PartsZF can compare it with the available records.
Specification Snapshot
| ZF part number | 0501.320.204 |
|---|---|
| Normalized SKU | 0501320204 |
| Part name | SOLENOID VALVE |
| Product category | solenoid valve |
| Cross-reference support | Available for RFQ review |
Image and Documentation Notes
Current product media status: diagram. Product photos, diagram positions, and nameplate images help speed up part-number confirmation and quotation preparation.
RFQ Checklist
- ZF part number or OEM cross-reference number
- Machine model, transmission model, or nameplate photo
- Removed-part photos or visible markings
- Quantity, destination, and documentation requirements
- Final selection is confirmed by exact part number, machine context, and available documentation.
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