Overview
The ZF 0501.331.979 SCREEN FILTER is a critical hydraulic filtration component engineered for the WG100, WG130, and WG131 transmission series. Positioned within the transmission’s lubrication circuit, this OEM genuine part captures particulate contaminants before they can circulate through the valve body, torque converter, and clutch packs. The SKU 0501.331.979 ensures a precise fit and consistent filtration efficiency, safeguarding internal clearances against abrasive wear. When paired with a properly maintained 2093109022: DIFFERENTIAL, this screen filter helps maintain stable hydraulic pressure across all operating conditions.
Symptoms of Failure
- Delayed or harsh gear engagement: A clogged screen filter restricts oil flow, causing hesitation when shifting from Neutral to Drive or Reverse.
- Intermittent transmission slipping under load: Contaminants bypassing a degraded filter can clog solenoid screens, leading to pressure drops during acceleration.
- Whining or humming noise from the transmission pump: Starvation caused by a blocked filter forces the pump to cavitate, producing audible distress.
- Overheating during prolonged operation: Reduced lubrication flow accelerates thermal buildup, often triggering warning lights in heavy-duty applications.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0501.331.979 |
| Filter Media | Stainless steel wire mesh (100 micron nominal) |
| Outer Diameter | 68 mm |
| Inner Diameter | 32 mm |
| Height | 45 mm |
| Weight | 0.12 kg |
| OEM Reference | ZF 0501.331.979 |
| Seal Material | Nitrile rubber (NBR) |
Compatibility
This screen filter is designed exclusively for ZF WG-series powershift transmissions, specifically the WG100, WG130, and WG131 models. It is also compatible with certain variants of the WG180 and WG200 when used in conjunction with the correct 0750117075: TAPER ROLLER BEARING and 2093209096: DIFFERENTIAL assembly. For applications requiring the 2093309073: DIFF.HOUSING, verify the filter cavity depth to ensure proper sealing. Always cross-reference your transmission serial number with the ZF parts catalog before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109022 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads in gear sets |
| 2093209096 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309073 | DIFF.HOUSING | Encloses differential gears and bearings |
| 0631100223 | SPRING PIN | Secures shift fork or linkage components |
| 0730300820 | THRUST WASHER | Controls axial play in rotating assemblies |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 2097309085 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Reduces friction in planetary gear sets |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Mesh with pinion gears for speed differentiation |
Frequently Asked Questions
Q: How often should the ZF 0501.331.979 screen filter be replaced?
A: ZF recommends replacing this filter every 1,000 operating hours or during major transmission overhaul intervals. In severe-duty applications (e.g., mining or construction), inspect the screen at every oil change.
Q: Can I clean and reuse this screen filter?
A: No. The 0501.331.979 is a disposable, crimped-screen element. Cleaning may damage the mesh integrity, allowing contaminants to bypass. Always install a new OEM part.
Q: Will a clogged filter cause damage to the differential assembly?
A: Yes. Restricted oil flow can starve the 2093109022: DIFFERENTIAL and 2093209096: DIFFERENTIAL of lubrication, leading to premature gear and bearing failure.
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ZF 0501.331.979 SCREEN FILTER – Filter RFQ Support
PartsZF helps B2B buyers source ZF 0501.331.979 SCREEN FILTER with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This filter 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 0501.331.979 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: PUMP DRIVE
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 | 0501.331.979 |
|---|---|
| Normalized SKU | 0501331979 |
| Part name | SCREEN FILTER |
| Product category | filter |
| Cross-reference support | Available for RFQ review |
| Weight | 0.026 |
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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