Overview
The ZF 4644.106.231 SHIFT SYSTEM is a precision-engineered OEM genuine component designed for the WG150, WG180, and WG200 series transmissions. This assembly controls the mechanical engagement and disengagement of gear ratios within the transmission housing. The shift system interfaces directly with the selector mechanism and internal linkage to ensure smooth, reliable power transfer. The SKU 4644.106.231 is a direct replacement for worn or damaged shift assemblies, restoring factory shift feel and preventing driveline damage. This part is mounted internally within the TRANSMISSION HOUSING and works in conjunction with the TRANSMISSION HOUSING to maintain proper alignment and sealing.
Symptoms of Failure
- Gear slipping or hard shifting: When the shift system wears, internal detents lose engagement, causing gears to slip under load or requiring excessive force to shift.
- Oil leaks around shift shaft: Worn seals on the 4644.106.231 assembly allow transmission fluid to escape, leading to low oil levels and eventual overheating.
- Intermittent neutral or gear hang-up: A failing shift system may fail to fully engage a gear, leaving the transmission in a false neutral or causing it to hang between ratios.
- Unusual clunking or grinding noises: Damaged shift forks or worn bushings produce metallic sounds during gear changes, indicating imminent failure of the shift system.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4644.106.231 |
| OEM Reference | ZF 4644.106.231 |
| Material | Hardened steel alloy with zinc plating |
| Weight | 1.8 kg (approx.) |
| Dimensions (L x W x H) | 210 mm x 95 mm x 65 mm |
| Compatible Housing | 4642101109 & 4642301205 |
| Identification | TYPE PLATE (0730365125) required for proper marking |
| Mounting Hardware | GROOVED STUD (0631311009) used for secure attachment |
Compatibility
This shift system is engineered specifically for ZF WG150, WG180, and WG200 series transmissions. It is a direct fit for all variants within these series, including standard and heavy-duty configurations. The 4644.106.231 replaces earlier shift assemblies and is backward-compatible with most WG180 and WG200 models produced after 1998. Always verify the existing shift system configuration and check the TYPE PLATE for exact model identification before installation. The assembly requires the GROOVED STUD for proper torque retention.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for shift system mounting |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing for WG200 series |
| 0730365125 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Fastener for shift system retention |
| 4642301168 | SCREEN SHEET | Filter screen for oil circulation |
| 4642301169 | SCREEN SHEET | Secondary filter screen variant |
| 0636100621 | HEXAGON SCREW | Mounting screw for housing assembly |
| 4642301186 | SCREEN SHEET | Fine mesh screen for debris filtration |
| 4644306470 | GASKET | Seal between housing and shift cover |
| 4644306194 | COVER PLATE | Protective cover for shift mechanism |
ZF 4644.106.231 SHIFT SYSTEM – Shift System RFQ Support
PartsZF supports ZF 4644.106.231 SHIFT SYSTEM RFQs by checking the part number, related documentation, and buyer-supplied transmission context before quotation.
Part-Number Summary
Use ZF number 4644.106.231 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 | 4644.106.231 |
|---|---|
| Normalized SKU | 4644106231 |
| 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
