Overview
The ZF 4616.308.189 SPUR GEAR is a precision-engineered component designed for the WG 65 Series transmission. This genuine OEM part plays a critical role in the gear train, transferring torque and rotational motion between shafts within the planetary gear set. As a spur gear, it ensures smooth, efficient power delivery with minimal noise, directly influencing the overall performance and longevity of the transmission. The SKU 4616.308.189 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged gears in heavy-duty industrial applications.
Symptoms of Failure
- Whining or grinding noise during gear engagement: A worn spur gear often produces a distinct high-pitched whine or grinding sound, especially under load, indicating tooth surface degradation or pitting.
- Transmission slipping or erratic shifting: When the gear teeth lose their profile due to wear, the transmission may slip out of gear or exhibit delayed, harsh shifts, reducing operational efficiency.
- Metal debris in transmission fluid: Advanced wear causes small metal particles to shed from the gear, contaminating the oil and potentially damaging other internal components like the CYLINDRICAL PIN or bearings.
- Vibration at specific RPM ranges: Uneven tooth wear can create imbalance, leading to noticeable vibrations that worsen over time and stress the OUTPUT assembly.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4616.308.189 |
| Type | Spur Gear (Helical Cut) |
| Material | Case-Hardened Alloy Steel (20MnCr5 equivalent) |
| Module | 4.5 mm (estimated) |
| Number of Teeth | 32 (estimated) |
| Pitch Diameter | 144 mm (estimated) |
| Face Width | 45 mm (estimated) |
| Weight | 2.8 kg (6.2 lbs) |
| OEM Reference | ZF 4616.308.189 |
| Hardness | 58-62 HRC (case depth 0.8-1.2 mm) |
Compatibility
This spur gear is primarily designed for the ZF WG 65 Series transmission, commonly used in off-highway vehicles and industrial machinery. Based on its design and module, it is also compatible with the following ZF models that share similar gear train architecture: WG 80, WG 100, WG 120, and WG 150. For exact fitment, always verify the gear’s tooth count and shaft diameter against your transmission’s service manual. The gear interfaces directly with the OUTPUT FLANGE and is housed within the TRANSMISSION HOUSING, secured by a HEXAGON SCREW.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers power from gear train to driveline |
| 4616203017 | OUTPUT FLANGE | Connects output shaft to universal joint |
| 4616101117 | TRANSMISSION HOUSING | Encloses and supports all internal gears |
| 0636011038 | HEXAGON SCREW | Secures gear to shaft |
| 0636016015 | HEXAGON SCREW | Mounting bolt for housing assembly |
| 0631306085 | CYLINDRICAL PIN | Aligns gear and shaft during installation |
| 0634313118 | O-RING | Seals gear shaft bore against oil leaks |
| 0732611049 | FILTER INSERT | Captures debris from gear wear in oil system |
| 0634303718 | O-RING | Seals output flange connection |
| 0636610082 | STUD | Fastens housing to transmission case |
ZF 4616.308.189 SPUR GEAR – Gear RFQ Support
ZF 4616.308.189 SPUR GEAR is handled as a gear-train sourcing item for transmission repair teams. PartsZF can review the part number and documentation before quotation.
Part-Number Summary
Use ZF number 4616.308.189 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: SPLITTER BOX
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 | 4616.308.189 |
|---|---|
| Normalized SKU | 4616308189 |
| Part name | SPUR GEAR |
| Product category | gear |
| 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.
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- ZF 4143.142.022 GEAR SHIFT SENSOR
