Overview
The ZF 4699.372.117 SPROCKET WHEEL is a critical OEM genuine component engineered for the power transfer assembly within heavy-duty construction machinery transmissions. This part functions as the primary drive interface between the transmission output shaft and the final drive, converting rotational torque into linear motion for tracked vehicle propulsion. As an integral element of the drivetrain, the sprocket wheel ensures precise gear engagement and load distribution under extreme operating conditions. The SKU 4699.372.117 is specifically designed to meet ZF’s original manufacturing tolerances, guaranteeing seamless integration with the 4699101090: HOUSING assembly, which encloses the entire gear cluster. Without this sprocket wheel, the transmission cannot transfer power effectively, leading to operational downtime in excavators, loaders, and dozers.
Symptoms of Failure
- Irregular track tension and jerky movement: When the sprocket wheel’s teeth wear unevenly, the track chain skips, causing sudden lurches during acceleration or deceleration. This is a common long-tail search query for “ZF transmission jerky movement fix.”
- Metallic grinding noise from the final drive: Worn sprocket teeth produce a distinct high-pitched grinding sound, especially under load. Operators searching for “grinding noise ZF final drive” often find this part as the root cause.
- Premature track chain wear: A damaged sprocket wheel accelerates wear on the track chain links and bushings. This symptom is frequently searched as “track chain wearing fast ZF transmission.”
- Oil contamination in the housing: Cracks in the sprocket wheel can allow transmission fluid to mix with debris, leading to sludge buildup. This is often linked to failure of the 0634306309: O-RING seal, which must be replaced simultaneously.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4699.372.117 |
| Material | Case-hardened alloy steel (16MnCr5) |
| Weight | 4.8 kg (10.6 lbs) |
| Outer Diameter | 210 mm |
| Tooth Count | 23 |
| Bore Diameter | 45 mm |
| OEM Reference | ZF 4699.372.117 |
| Surface Hardness | HRC 58-62 |
Compatibility
This sprocket wheel is engineered for ZF WG-series powershift transmissions commonly deployed in construction machinery. Based on its tooth profile and bore dimensions, it is compatible with the following ZF models: WG180, WG200, WG210, and WG250. These transmissions are found in equipment from manufacturers such as Caterpillar, Volvo, and Liebherr. For proper installation, the sprocket wheel must be paired with the 0501329881: HOUSING COVER to protect the gear cavity from debris ingress. Additionally, the 0637885612: BREATHER must be checked for clogs to prevent pressure buildup that could misalign the sprocket.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101090 | HOUSING | Encloses and supports the sprocket wheel assembly |
| 0501329881 | HOUSING COVER | Seals the housing top to prevent contamination |
| 0634306309 | O-RING | Provides fluid-tight seal between housing and cover |
| 0637885612 | BREATHER | Equalizes internal pressure and vents moisture |
| 0501319149 | SCREW PLUG | Seals oil drain or fill ports in the housing |
| 0636302022 | SCREW PLUG | Alternative thread size plug for auxiliary ports |
| 0634801038 | SEALING RING | Prevents leakage at threaded plug interfaces |
| 0730365801 | TYPE PLATE | Identification plate for transmission model verification |
| 4699001116 | GK10 | Gear kit for complementary drive train repairs |
| 4699102158 | INPUT | Input shaft assembly that drives the sprocket wheel |
