Overview
The ZF 4644.159.316 SHIFT SYSTEM is a precision-engineered OEM genuine component designed for the WG200 and WG201 transmission series. This critical assembly governs gear selection and clutch modulation, ensuring smooth power delivery in heavy-duty industrial applications. As the central interface between the driver’s command and the transmission’s internal hydraulics, the shift system directly influences shift quality and operational reliability. The SKU 4644.159.316 is factory-matched to ZF’s original specifications, guaranteeing exact fitment and long service life. It integrates seamlessly with the TRANSMISSION HOUSING (4644101175) and the TRANSMISSION HOUSING (4644301221), forming the core structural envelope of the gearbox.
Symptoms of Failure
When the ZF 4644.159.316 shift system deteriorates, operators often notice distinct performance issues. Common failure symptoms include:
- Delayed or harsh gear engagement – The transmission hesitates or clunks when shifting between forward and reverse, indicating worn shift valves or detent mechanisms.
- Intermittent gear slipping under load – The transmission loses torque momentarily during acceleration, often caused by degraded shift system components failing to maintain clutch pressure.
- Oil leaks near the shift cover area – External fluid seepage around the shift housing signals seal or gasket failure, often accompanied by a burnt transmission fluid smell.
- Erratic shift patterns – The transmission may skip gears or fail to hold a selected range, pointing to internal wear in the shift system’s mechanical linkage.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4644.159.316 |
| OEM Reference | ZF 4644.159.316 |
| Material | High-grade steel alloy with hardened shift forks |
| Weight | Approx. 2.8 kg (6.2 lbs) |
| Dimensions (L x W x H) | 210 mm x 140 mm x 95 mm |
| Compatible Housing | 4644101175 & 4644301221 |
| Identification | 0730365067: TYPE PLATE |
| Fastener | 0631311009: GROOVED STUD |
Compatibility
This shift system is engineered for ZF’s WG-series transmissions, specifically the WG200 and WG201 models. It is also backward-compatible with the WG180 series in certain configurations, provided the housing and shift cover are matched. The part is not suitable for WG120 or WG150 variants due to differences in shift rail spacing. For proper installation, always verify the presence of the 0730365067: TYPE PLATE to confirm transmission model identification, and use the 0631311009: GROOVED STUD for secure mounting.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101175 | TRANSMISSION HOUSING | Main structural casing for gear and shaft assembly |
| 4644301221 | TRANSMISSION HOUSING | Alternate housing variant for WG201 series |
| 0730365067 | TYPE PLATE | Identification tag for transmission model and specs |
| 0631311009 | GROOVED STUD | Fastener for shift system mounting |
| 4644303060 | COVER PLATE | Seals the shift system access port |
| 4644303061 | COVER PLATE | Alternate cover plate for different housing variants |
| 0634306525 | O-RING | Prevents fluid leaks at shift system interfaces |
| 0636305026 | SCREW PLUG | Seals hydraulic passages in the shift assembly |
| 0501316470 | BREATHER | Equalizes pressure inside the transmission housing |
| 4644301279 | SCREEN SHEET | Filters debris from transmission fluid flow |
ZF 4644.159.316 SHIFT SYSTEM – Shift System RFQ Support
PartsZF helps B2B buyers source ZF 4644.159.316 SHIFT SYSTEM with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This shift system 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 4644.159.316 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 | 4644.159.316 |
|---|---|
| Normalized SKU | 4644159316 |
| Part name | SHIFT SYSTEM |
| Product category | shift system |
| Cross-reference support | Available for RFQ review |
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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