Overview
The ZF 5838.300.159 PLANETARY GEAR is a critical torque-multiplying component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part sits at the heart of the planetary gearset assembly, transferring rotational force from the sun gear to the carrier while managing load distribution across multiple pinions. Designed to handle high-stress industrial applications, the 5838.300.159 ensures smooth power delivery and extended service life. When rebuilding your transmission, this planetary gear works in concert with the 5838109007: DIFFERENTIAL to maintain precise gear mesh alignment and load sharing.
Symptoms of Failure
- Whining or growling noise during acceleration: Worn planetary gear teeth create a distinct high-pitched whine that intensifies under load, often mistaken for bearing noise.
- Intermittent gear slipping under heavy torque: Damaged gear surfaces cause the planetary set to lose grip, resulting in momentary power loss during uphill climbs or towing.
- Metallic debris in transmission fluid: Flaking or pitting on the planetary gear teeth deposits fine metal particles in the oil pan, visible during routine fluid changes.
- Vibration at specific RPM ranges: Uneven wear on the planetary gear creates harmonic vibrations that resonate through the driveline, particularly between 1500-2500 RPM.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 5838.300.159 |
| Gear Type | Planetary (Sun/Pinion Set) |
| Material | Case-Hardened Alloy Steel (20MnCr5) |
| Outer Diameter | 142 mm |
| Inner Bore Diameter | 45 mm |
| Overall Height | 38 mm |
| Number of Teeth | 28 (Sun) / 14 (Each Pinion) |
| Weight | 1.85 kg |
| OEM Reference | ZF 5838.300.159 |
| Heat Treatment | Carburized & Tempered to HRC 58-62 |
Compatibility
This planetary gear is specifically designed for ZF WG100, WG130, and WG131 powershift transmissions commonly found in construction equipment, agricultural tractors, and material handlers. It also fits select WG180 and WG200 variants when used in low-range planetary sets. For proper installation, pair this gear with the 0750117075: TAPER ROLLER BEARING to support axial loads, and secure the assembly with the 0631329086: SPRING PIN for positive retention. In dual-differential configurations, the 2095209019: DIFFERENTIAL works alongside this gear to balance speed differences between drive wheels.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque between output shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports planetary carrier axial loads |
| 2095209019 | DIFFERENTIAL | Secondary torque splitter for dual-axle systems |
| 0631329086 | SPRING PIN | Locks planetary gear to carrier shaft |
| 5838300817 | THRUST WASHER | Reduces axial friction between gear faces |
| 5838300682 | DIFFERENTIAL AXLE | Carries differential side gears |
| 5838300811 | THRUST WASHER | Spacer for planetary gear end-play control |
| 5841302064 | THRUST WASHER | High-load washer for planetary pinion |
| 5838300137 | OUTER CLUTCH DISK | Steel friction plate for clutch pack |
| 5838300138 | INNER CLUTCH DISK | Friction-lined plate for torque transfer |
ZF 5838.300.159 PLANETARY GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 5838.300.159 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 5838.300.159 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 | 5838.300.159 |
|---|---|
| Normalized SKU | 5838300159 |
| 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
