Overview
The ZF 5838.300.246 PLANETARY GEAR is a critical torque-multiplying component engineered for the final drive assembly of WG100, WG130, and WG131 transmissions. This OEM genuine part sits within the planetary gear set, directly meshing with the sun gear and ring gear to distribute load evenly across the drivetrain. As a high-precision gear, the SKU 5838.300.246 ensures smooth power transfer from the transmission output shaft to the differential assembly. When paired with a 5838109012: DIFFERENTIAL, this planetary gear maintains optimal gear mesh alignment, reducing wear on adjacent components like the 0750117075: TAPER ROLLER BEARING.
Symptoms of Failure
- Whining or grinding noise during acceleration: Worn planetary gear teeth create a high-pitched whine that intensifies under load, often mistaken for differential failure.
- Intermittent gear slipping under heavy torque: Damaged gear flanks cause momentary loss of drive engagement, particularly when climbing grades or towing.
- Metallic debris in transmission fluid: Flaking or pitting on the planetary gear surface sheds fine steel particles, visible during routine oil changes.
- Vibration through the chassis at highway speeds: Uneven gear wear induces cyclical vibrations that resonate through the driveline, often accompanied by a rhythmic thumping sound.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.246 |
| Gear Type | Planetary (Helical Cut) |
| Material | Case-Hardened Alloy Steel (20MnCr5) |
| Outside Diameter | 98.5 mm |
| Tooth Count | 24 |
| Weight | 1.42 kg |
| OEM Reference | ZF 5838.300.246 |
| Hardness | 58-62 HRC |
Compatibility
This planetary gear is designed exclusively for ZF WG-series transmissions. Verified compatible models include WG100, WG130, and WG131. It also fits select WG180 and WG200 variants when used with the correct 5838300626: DIFFERENTIAL HOUSING. For dual-differential configurations, the gear integrates with the 2093209023: DIFFERENTIAL assembly. Always verify axle ratios before installation, as mismatched planetary gears can cause premature failure of the 0750117075: TAPER ROLLER BEARING.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports planetary gear shaft rotation |
| 2093209023 | DIFFERENTIAL | Secondary torque split in dual-axle setups |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses planetary gear and differential assembly |
| 0631329088 | SPRING PIN | Secures planetary gear to carrier |
| 5838300811 | THRUST WASHER | Reduces axial play in gear stack |
| 5838300721 | AXLE BEVEL GEAR | Transfers power from planetary to axle shaft |
| 5838300633 | AXLE | Drives wheel hub from differential |
| 5838300753 | THRUST WASHER | Prevents gear-to-housing contact |
| 5838300818 | THRUST WASHER | Controls end float on planetary carrier |
Frequently Asked Questions
Q: Can the 5838.300.246 planetary gear be replaced without removing the entire transmission?
A: Yes, in most WG100/WG130 applications, the gear is accessible after removing the differential housing cover and the 5838300626: DIFFERENTIAL HOUSING. However, the 0750117075: TAPER ROLLER BEARING must be removed first to access the gear carrier.
Q: What is the typical service life of this OEM planetary gear?
A: Under normal operating conditions with proper lubrication, the 5838.300.246 lasts 300,000–500,000 km. Premature failure often occurs if the 5838109012: DIFFERENTIAL develops excessive backlash.
Q: Is this gear compatible with aftermarket differential housings?
A: Only when the housing matches OEM ZF dimensions. Using a non-OEM 5838300626: DIFFERENTIAL HOUSING may alter gear mesh depth and cause rapid tooth wear.
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ZF 5838.300.246 PLANETARY GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 5838.300.246 PLANETARY GEAR with fast RFQ support, expert part-number lookup, documentation review, and export coordination. This gear 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 5838.300.246 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 | 5838.300.246 |
|---|---|
| Normalized SKU | 5838300246 |
| Part name | PLANETARY GEAR |
| Product category | gear |
| 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.
Related Parts
- ZF 4646.302.128 HELICAL GEAR
- ZF 4143.316.088 PINION
- ZF 4657.302.007 INPUT GEAR
- ZF 4657.354.044 OUTPUT GEAR
- ZF 4644.306.326 GEAR SHIFT HOUSING
