Overview
The ZF 4651.138.001 FILTER is a critical hydraulic filtration component engineered specifically for the WG 100 and WG 110 series transmissions. Positioned within the transmission sump or the main pressure line, this OEM genuine part ensures that hydraulic fluid remains free of particulate contaminants, thereby protecting precision valves, clutch packs, and torque converters from abrasive wear. The SKU 4651.138.001 serves as the direct replacement for the original factory filter element, maintaining the stringent cleanliness standards required for long transmission life. When installed alongside the 4651101007: TRANSMISSION HOUSING, this filter creates a sealed environment that prevents bypass contamination.
Symptoms of Failure
- Erratic gear engagement or delayed shifting: A clogged 4651.138.001 filter restricts oil flow, causing hesitation when the transmission shifts between forward and reverse gears.
- Whining or humming noise from the transmission pump: As the filter becomes saturated with debris, the pump must work harder, generating audible cavitation sounds.
- Overheating transmission fluid: Restricted filtration leads to increased internal friction and thermal buildup, often indicated by a burning smell or high temperature gauge readings.
- Visible metal particles in the oil pan: When the filter fails to capture wear debris, metallic sludge accumulates in the sump, signaling imminent internal damage.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4651.138.001 |
| Filtration Micron Rating | 25 µm (nominal) |
| Outer Diameter | 92 mm |
| Inner Diameter | 32 mm |
| Height | 145 mm |
| Media Material | Resin-impregnated cellulose with synthetic fiber |
| Housing Material | Steel with anti-corrosion coating |
| Dry Weight | 0.42 kg |
| Seal Type | Integrated O-ring (compatible with 0634303928: O-RING) |
Compatibility
This filter is designed for the ZF WG 100 and WG 110 series transmissions, commonly found in industrial forklifts, telehandlers, and mobile construction equipment. It is also compatible with the WG 180 and WG 200 series when used with the appropriate 4651301029: HOUSING adapter. For WG 120 and WG 150 variants, verify the sump depth; the filter may require the 4651301024: HOUSING to achieve proper sealing. Always confirm the part number against your transmission’s service manual before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101007 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4651301029 | HOUSING | Filter adapter housing for WG 180/200 |
| 0634303928 | O-RING | Seal for filter-to-housing interface |
| 4651301024 | HOUSING | Alternate filter housing for WG 120/150 |
| 4651203002 | SCREEN SHEET | Coarse pre-filter screen for large debris |
| 4651303005 | SCREEN SHEET | Fine mesh screen for secondary filtration |
| 0636101032 | CAP SCREW | Fastener for filter housing cover |
| 0630361028 | SEALING CAP | Protective cap for unused filter ports |
| 4475280060 | SCREW PLUG | Threaded plug for drain or test ports |
| 0634303312 | O-RING | Secondary seal for plug or cap |
ZF 4651.138.001 FILTER – Filter RFQ Support
PartsZF helps B2B buyers source ZF 4651.138.001 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 4651.138.001 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: FILTER
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 | 4651.138.001 |
|---|---|
| Normalized SKU | 4651138001 |
| Part name | FILTER |
| Product category | filter |
| 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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