Overview
The ZF 1269.337.031 PLANETARY GEAR is a critical power-transfer component engineered specifically for the WG 65 Series transmission. This OEM genuine part sits within the planetary gearset assembly, where it manages torque distribution and speed reduction between the input shaft and the 4616105415: OUTPUT shaft. Precision-machined from high-strength alloy steel, the 1269.337.031 planetary gear ensures smooth, synchronized rotation under heavy loads. As an OEM genuine part, it guarantees exact fitment and durability, eliminating the risk of premature wear associated with aftermarket alternatives. The SKU 1269.337.031 is a direct replacement for the original factory-installed gear in WG65 transmissions.
Symptoms of Failure
When the ZF 1269.337.031 PLANETARY GEAR begins to wear, operators may notice several distinct failure indicators. Transmission gear slipping under load is a primary symptom, often accompanied by a grinding noise during acceleration. Metallic debris in the transmission fluid signals tooth surface fatigue or pitting on the planetary gear. Intermittent loss of drive power in forward gears, particularly at low RPM, points to worn gear teeth failing to engage properly with the 4616303144: OUTPUT FLANGE. Additionally, vibration through the driveline during steady-speed operation indicates uneven gear wear that can cascade into damage to the 4616101094: TRANSMISSION HOUSING if left unaddressed.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 1269.337.031 |
| Gear Type | Planetary (Sun/Planet Carrier) |
| Outer Diameter | 145 mm (estimated) |
| Tooth Count | 42 teeth (estimated) |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 2.8 kg (6.2 lbs) |
| OEM Reference | ZF 1269.337.031 |
| Surface Treatment | Carburized & ground |
Compatibility
This planetary gear is designed for the ZF WG 65 Series transmission family. It is compatible with the following ZF models: WG65, WG80, WG120, WG150, WG180, and WG200 transmissions. The 1269.337.031 gear interfaces directly with the sun gear and ring gear assemblies in these units. For proper installation, ensure the 0636011038: HEXAGON SCREW is torqued to factory specifications to secure the gear carrier to the output shaft. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105415 | OUTPUT | Transfers torque from planetary gear to driveline |
| 4616303144 | OUTPUT FLANGE | Connects output shaft to driveshaft |
| 4616101094 | TRANSMISSION HOUSING | Encloses and supports planetary gear assembly |
| 0636011038 | HEXAGON SCREW | Secures gear carrier to output shaft |
| 0636011118 | HEXAGON SCREW | Fastens planetary cover to housing |
| 0636016015 | HEXAGON SCREW | Mounts flange to output shaft |
| 0631306085 | CYLINDRICAL PIN | Aligns planetary carrier to housing |
| 0634313118 | O-RING | Seals output flange against leakage |
| 0732611049 | FILTER INSERT | Removes debris from transmission fluid |
| 0634303718 | O-RING | Seals housing cover joint |
ZF 1269.337.031 PLANETARY GEAR – Gear RFQ Support
ZF 1269.337.031 PLANETARY 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 1269.337.031 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: DIFFERENTIAL
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 | 1269.337.031 |
|---|---|
| Normalized SKU | 1269337031 |
| Part name | PLANETARY 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.
Related Parts
- ZF 4661.302.010 GEAR
- ZF 2094.306.024 GEAR SHIFT RAIL
- ZF 4642.353.026 SPUR GEAR
- ZF 4143.142.013 GEAR SHIFT SENSOR
- ZF 4143.142.022 GEAR SHIFT SENSOR
