Overview
The ZF 4699.197.046 CARRIER is a critical load-bearing component within the planetary gearset of heavy-duty construction machinery transmissions. As an OEM genuine part, it functions as the central hub that houses and supports the planetary gears, ensuring precise torque distribution and rotational stability. Located in the intermediate or final drive section of the transmission, this carrier directly interfaces with the HOUSING and the INPUT shaft assembly. The SKU 4699.197.046 is engineered to withstand extreme axial and radial loads, making it indispensable for maintaining driveline integrity in excavators, wheel loaders, and cranes.
Symptoms of Failure
- Transmission gear slipping under load — When the carrier’s bearing journals or splines wear, the planetary gears lose alignment, causing intermittent slipping during heavy excavation or lifting operations.
- Metallic grinding noise from the transmission housing — Worn carrier pockets allow planetary gears to shift, producing a distinct grinding sound, especially when shifting between forward and reverse.
- Oil leaks near the output flange — A cracked or fatigued carrier can distort the sealing surface, leading to hydraulic fluid seepage around the OUTPUT shaft seal.
- Vibration during low-speed operation — Uneven wear on the carrier’s gear pockets creates imbalance, transmitting vibration through the chassis during precision maneuvering.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.197.046 |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 8.7 kg (19.2 lbs) |
| Outer Diameter | 185 mm |
| Inner Bore Diameter | 65 mm |
| Overall Height | 92 mm |
| OEM Reference | ZF 4699.197.046 |
| Heat Treatment | Carburized & tempered to HRC 58-62 |
Compatibility
This carrier is specifically designed for ZF WG-series power shift transmissions used in construction machinery. It is a direct fit for the WG180 and WG200 series, commonly found in 20-40 ton excavators and wheel loaders. The part also integrates with the GK10LD gear kit, which includes the mating planetary gears and sun shaft. For complete assembly verification, always cross-reference the carrier with the transmission’s serial number.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699001185 | GK10LD | Planetary gear kit for torque distribution |
| 4699101108 | HOUSING | Encloses the carrier and gear assembly |
| 4699102172 | INPUT | Transfers engine torque to the carrier |
| 4699103057 | OUTPUT | Delivers reduced speed to the final drive |
| 4699105096 | TURNTABLE BEARING | Supports rotational load on the output side |
| 0501329881 | HOUSING COVER | Seals the transmission housing |
| 0630513065 | SNAP RING | Secures the carrier in its bore |
| 0634306309 | O-RING | Prevents oil leakage at the carrier joint |
| 0637885612 | BREATHER | Equalizes internal transmission pressure |
| 0769100082 | TYPE PLATE | Identification tag for the transmission |
