Overview
The ZF 4699.303.086 PLANETARY GEAR is a critical torque-multiplying component engineered for the WG100, WG130, and WG131 transmission series. Positioned within the planetary gearset assembly, this OEM genuine part transfers rotational force from the sun gear to the ring gear, enabling smooth ratio changes under heavy loads. The SKU 4699.303.086 is precision-machined to ZF’s exacting tolerances, ensuring minimal backlash and consistent power delivery in industrial drivelines. When installed alongside the 4699101155 HOUSING and 4699201018 HOUSING, this planetary gear forms the core of the transmission’s load-bearing structure.
Symptoms of Failure
- Erratic gear slipping under load: Worn planetary gear teeth cause intermittent power loss, especially during acceleration or uphill operation.
- Metallic grinding or whining noise: Pitted or chipped gear surfaces produce audible distress signals from the transmission housing.
- Oil contamination with metallic debris: Flakes or particles in the transmission fluid indicate advanced wear of the 4699.303.086 gear set.
- Delayed engagement or harsh shifting: Damaged planetary gears disrupt hydraulic pressure balance, leading to jerky gear changes.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.303.086 |
| Type | Planetary Gear (Sun/Planet Carrier Assembly) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 2.85 kg (6.28 lbs) |
| Outer Diameter | 118 mm |
| Tooth Count | 24 (sun) / 36 (planet) |
| OEM Reference | ZF 4699.303.086 |
| Torque Capacity | 1,200 Nm (885 lb-ft) |
| Operating Temperature Range | -20°C to +120°C |
| Hardness | 58-62 HRC (case depth 0.8 mm) |
Compatibility
This planetary gear is specifically designed for ZF WG100, WG130, and WG131 transmissions used in construction, agricultural, and material handling equipment. It also fits select WG180 and WG200 variants with identical planetary carrier dimensions. For proper installation, always pair the 4699.303.086 with the 4699309077 HOUSING COVER and secure it using 0636100132 TORX SCREW fasteners to prevent oil leaks and misalignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101155 | HOUSING | Encloses planetary gearset; provides structural support |
| 4699201018 | HOUSING | Secondary housing for torque converter section |
| 4699309077 | HOUSING COVER | Seals the planetary gear cavity; prevents contamination |
| 0636100132 | TORX SCREW | High-strength fastener for housing cover retention |
| 0631302072 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0634801038 | SEALING RING | Prevents fluid leakage at housing joints |
| 0636302013 | SCREW PLUG | Closes oil drain or fill ports |
| 0501319149 | SCREW PLUG | Magnetic plug for debris collection |
| 0637101790 | BREATHER | Equalizes internal pressure; vents moisture |
| 0631302221 | CYLINDRICAL PIN | Secondary alignment pin for cover installation |
ZF 4699.303.086 PLANETARY GEAR – Gear RFQ Support
PartsZF helps B2B buyers source ZF 4699.303.086 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 4699.303.086 when sending your RFQ. PartsZF can review dotted, spaced, and compact number formats against the available product and documentation records.
Application Context
- Illustration section: OUTPUT
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 | 4699.303.086 |
|---|---|
| Normalized SKU | 4699303086 |
| 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
