Overview
The ZF 0501.323.206 SOLENOID is a critical electro-hydraulic actuator within the valve body assembly of ZF WG100, WG130, and WG131 transmissions. This OEM genuine part precisely regulates oil flow to control clutch and brake application, directly governing shift timing and pressure modulation. As a high-wear component exposed to continuous thermal cycling and fluid contamination, the SKU 0501.323.206 must be replaced with factory-spec hardware to maintain transmission integrity. It interfaces directly with the 4663101001: HOUSING, which channels pressurized fluid to the solenoid bore, and is secured by the 0636100817: CAP SCREW that ensures vibration-resistant mounting.
Symptoms of Failure
- Erratic or delayed gear engagement – A failing solenoid causes hesitation when shifting from Neutral to Drive or Reverse, often accompanied by a harsh “clunk” as pressure builds unevenly.
- Transmission fluid leaks near the valve body – Worn internal O-rings on the solenoid allow ATF to bypass, leaving visible drips around the 4663301025: COVER and housing interface.
- Intermittent slipping under load – When the solenoid fails to hold commanded pressure, the transmission may momentarily lose torque transfer during uphill climbs or acceleration, triggering a limp-home mode.
- Harsh downshifts and flare – A stuck or slow-reacting solenoid causes RPM flare between gears, particularly during 3-2 or 4-3 downshifts, as the valve body cannot modulate release timing.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 0501.323.206 |
| Type | Proportional Pressure Control Solenoid |
| Coil Resistance (20°C) | 5.4 ± 0.3 Ω |
| Operating Pressure Range | 0–22 bar |
| Body Material | Hardened Steel / Anodized Aluminum |
| Seal Material | FKM (Viton) O-Ring |
| Weight | 0.18 kg (0.40 lbs) |
| OEM Reference | ZF 0501.323.206 |
| Mounting Torque | 8–10 Nm |
Compatibility
This solenoid is engineered specifically for ZF’s WG series powershift transmissions used in off-highway and industrial applications. Confirmed fitment includes WG100, WG130, and WG131 models. It is also commonly retrofitted into WG180 and WG200 valve bodies when upgrading to proportional pressure control, though cross-referencing the 0631306816: CYLINDRICAL PIN alignment is required for correct installation. Always verify the solenoid bore diameter in your specific housing variant before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4663101001 | HOUSING | Encloses valve body channels and solenoid bore |
| 4663301025 | COVER | Seals the valve body assembly against debris |
| 0631306816 | CYLINDRICAL PIN | Aligns solenoid and housing during assembly |
| 0636100817 | CAP SCREW | Secures solenoid to housing with precise torque |
| 4656301148 | FIXING PLATE | Retains solenoid wiring harness connector |
| 0636611009 | STUD | Provides threaded anchor for cover mounting |
| 0634303928 | O-RING | Seals solenoid-to-housing fluid port |
| 4475280099 | SCREW PLUG | Closes unused test ports in valve body |
| 0634303266 | O-RING | Seals screw plug against leakage |
| 4475280018 | SCREW PLUG | Alternate port plug for pressure tap |
ZF 0501.323.206 SOLENOID – Solenoid Valve RFQ Support
For ZF 0501.323.206 SOLENOID, PartsZF helps buyers prepare solenoid valve RFQs with part-number lookup, documentation review, and export coordination.
Part-Number Summary
Use ZF number 0501.323.206 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 | 0501.323.206 |
|---|---|
| Normalized SKU | 0501323206 |
| 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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