Overview
The ZF 0501.217.284 SOLENOID is a critical electro-hydraulic actuator within the valve body assembly of WG100, WG130, and WG131 series transmissions. This OEM genuine part precisely regulates oil flow to clutch packs and shift valves, converting electrical signals from the transmission control unit (TCU) into hydraulic pressure. As a direct replacement, the SKU 0501.217.284 ensures factory-specified shift timing and line pressure modulation. The solenoid mounts directly into the 4663101001: HOUSING, where it interfaces with the main control bore. For complete sealing during installation, the 0634303928: O-RING must be replaced to prevent fluid bypass around the valve spool.
Symptoms of Failure
- Delayed or harsh engagement — When the solenoid fails, you may experience a pronounced lag when shifting from Neutral to Drive or Reverse, followed by a jarring engagement. This is often accompanied by a “solenoid stuck off” diagnostic code.
- Erratic shift patterns and gear slipping — A worn 0501.217.284 can cause the transmission to hunt for gears or slip under load, particularly during 2-3 or 3-4 upshifts. Drivers report a “flaring” sensation as RPMs rise without corresponding acceleration.
- Transmission overheating and limp mode — Internal electrical shorts or blocked hydraulic passages force the TCU to default to a failsafe mode. The vehicle may lock in a single gear, often 3rd or 4th, accompanied by a warning light on the dash.
- Oil leaks at the valve body — Deterioration of the solenoid’s internal seals allows pressurized ATF to escape past the 4663301025: COVER interface, leaving visible drips on the transmission pan or bellhousing area.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 0501.217.284 |
| Coil Resistance (20°C) | 5.0 – 6.5 Ω |
| Operating Pressure Range | 0 – 20 bar (290 psi) |
| Body Material | Hard-anodized aluminum / steel spool |
| Seal Material | Viton (FKM) O-rings |
| Weight | 0.18 kg (0.40 lbs) |
| Mounting Torque | 8 Nm (6 lb-ft) |
| Connector Type | DIN 43650 (2-pin) |
Compatibility
This solenoid is engineered specifically for ZF WG series powershift transmissions used in industrial and off-highway applications. It is a direct fit for the WG100, WG130, and WG131 models. While primarily designed for these three variants, the 0501.217.284 may also be compatible with select WG180 and WG200 valve bodies that share the same hydraulic circuit architecture. Always verify the valve body casting number before ordering. The solenoid is secured in place using a 0631306816: CYLINDRICAL PIN and a 0636100817: CAP SCREW to ensure precise alignment within the housing bore.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4663101001 | HOUSING | Main valve body housing that contains solenoid bores and oil galleries |
| 4663301025 | COVER | Seals the valve body cavity and retains internal components |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for solenoid positioning in the housing |
| 0636100817 | CAP SCREW | Fastener securing the solenoid bracket to the valve body |
| 4656301148 | FIXING PLATE | Retainer plate that locks the solenoid in its bore |
| 0636611009 | STUD | Threaded stud for mounting the fixing plate |
| 0634303928 | O-RING | Primary seal between solenoid body and housing bore |
| 4475280099 | SCREW PLUG | Seals unused test ports on the valve body |
| 0634303266 | O-RING | Seal for the screw plug (4475280099) |
| 4475280018 | SCREW PLUG | Alternate sealing plug for pressure tap holes |
ZF 0501.217.284 SOLENOID – Solenoid Valve RFQ Support
Use this page to request ZF 0501.217.284 SOLENOID support for hydraulic control or shift-control service work. Photos and visible markings help confirm the quotation path.
Part-Number Summary
Use ZF number 0501.217.284 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: SHIFT SYSTEM
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 | 0501.217.284 |
|---|---|
| Normalized SKU | 0501217284 |
| Part name | SOLENOID |
| Product category | solenoid valve |
| RFQ support | Part-number lookup and documentation review |
| Media support | Product photo or diagram review when available |
Image and Documentation Notes
Current product media status: fallback. 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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