Overview
The ZF 4644.106.082 SHIFT SYSTEM is a precision-engineered mechanical assembly designed specifically for the ZF WG180 series powershift transmission. This OEM genuine part governs the engagement and disengagement of gear ratios by translating driver input into precise hydraulic valve actuation within the transmission control module. As the critical interface between the operator and the drivetrain, the shift system ensures smooth, reliable gear changes under heavy-duty operating conditions. The SKU 4644.106.082 is the direct factory replacement for this component, guaranteeing exact fitment and original ZF performance specifications.
Symptoms of Failure
When the ZF 4644.106.082 shift system begins to wear, operators typically notice these specific failure indicators:
- Delayed or harsh gear engagement – A noticeable lag or jarring sensation when shifting between forward and reverse, often accompanied by a clunking noise.
- Intermittent gear slipping under load – The transmission may momentarily lose power delivery during acceleration or when climbing grades, indicating worn shift detents or linkage components.
- Hydraulic fluid contamination – Internal wear particles from the shift system can migrate into the transmission fluid, causing discoloration or a burnt odor during routine oil checks.
- Stuck or inoperable shift lever – The shift lever may feel stiff, require excessive force, or fail to return to neutral, pointing to binding within the shift mechanism.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number (SKU) | 4644.106.082 |
| OEM Reference | ZF 4644.106.082 |
| Material | High-strength cast aluminum alloy with hardened steel detent components |
| Weight | Approximately 1.8 kg (4.0 lbs) |
| Overall Length | 215 mm |
| Mounting Hole Centers | 120 mm x 80 mm |
| Operating Temperature Range | -40°C to +120°C |
| Sealing Surface Finish | Ra 0.8 µm |
Compatibility
This shift system is engineered for the ZF WG180 series transmission family. It is also compatible with the following ZF models that share the same shift mechanism architecture: WG180, WG200, and WG211 series. The part is designed to interface directly with the TRANSMISSION HOUSING (4644101043) and the TRANSMISSION HOUSING (4644301194), which provide the structural mounting points. For proper identification, always verify the TYPE PLATE (0730365067) on your transmission before ordering. The assembly is secured using the GROOVED STUD (0631311009) to ensure correct alignment and torque retention.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101043 | TRANSMISSION HOUSING | Main structural casing for shift system mounting |
| 4644301194 | TRANSMISSION HOUSING | Alternate housing variant for WG180 series |
| 0730365067 | TYPE PLATE | Identification plate for transmission model verification |
| 0631311009 | GROOVED STUD | Fastener for shift system to housing attachment |
| 4644303060 | COVER PLATE | Seals shift mechanism access port |
| 4644303061 | COVER PLATE | Alternate cover plate for different housing configurations |
| 0634801098 | SEALING RING | Prevents fluid leakage at shift shaft interface |
| 0634801250 | SEALING RING | High-temperature sealing ring for shift system |
| 0636305026 | SCREW PLUG | Closes hydraulic test ports on shift system |
| 0636305019 | SCREW PLUG | Magnetic screw plug for debris collection |
ZF 4644.106.082 SHIFT SYSTEM – Shift System RFQ Support
ZF 4644.106.082 SHIFT SYSTEM can be reviewed as a shift-system sourcing item for WG, BP, HL, or ERGOPOWER-related service work when the application evidence is available.
Part-Number Summary
Use ZF number 4644.106.082 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 | 4644.106.082 |
|---|---|
| Normalized SKU | 4644106082 |
| Part name | SHIFT SYSTEM |
| Product category | shift system |
| 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.
Related Parts
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- ZF 4651.106.023 SHIFT SYSTEM
- ZF 2095.106.017 SHIFT SYSTEM
- ZF 4644.159.303 SHIFT SYSTEM
