Overview
The ZF 4642.199.518 LOOSE PARTS kit is a critical service component designed for the WG 200 Series transmission. This OEM genuine assembly contains the specific fasteners, retainers, and small hardware required to secure internal sub-assemblies within the transmission housing. Positioned within the main gear train area, this kit ensures that all loose components remain properly torqued and aligned during high-torque operations. The SKU 4642.199.518 is factory-matched to prevent vibration-induced loosening, which can lead to catastrophic internal damage. When rebuilding a WG200 unit, this kit is typically replaced alongside the 4644101249: TRANSMISSION HOUSING to guarantee a complete seal and structural integrity.
Symptoms of Failure
- Intermittent gear slippage under load: Worn loose parts can cause shift forks or clutch packs to lose positional accuracy, resulting in sudden power loss during acceleration.
- Metallic rattling from the transmission bell housing: Unsecured hardware creates a distinct loose-metal sound, especially when the transmission is in neutral or during low-speed coasting.
- Oil seepage around the housing mating surfaces: Degraded retainers allow the 0634306323: O-RING to shift, breaking the hydraulic seal and causing slow fluid loss.
- Erratic shift timing or delayed engagement: When internal fasteners loosen, hydraulic pressure pathways become obstructed, leading to harsh or delayed gear changes.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4642.199.518 |
| OEM Reference | ZF 4642.199.518 |
| Material Composition | Hardened steel with zinc-nickel plating |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| Compatible Housing | 4644301402: TRANSMISSION HOUSING |
| Sealing Component | 0634306323: O-RING |
| Cover Plate Reference | 4644301298: COVER PLATE |
Compatibility
This ZF 4642.199.518 LOOSE PARTS kit is specifically engineered for the WG 200 Series transmission family. It is also compatible with the WG180 and WG200 models that share the same modular housing architecture. The kit is designed to interface directly with the 4644301402: TRANSMISSION HOUSING and the 4644301298: COVER PLATE. For optimal performance, always pair this kit with a new 0634306323: O-RING to prevent fluid bypass. This part is not backward-compatible with older WG150 series units without housing modification.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101249 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301402 | TRANSMISSION HOUSING | Alternate housing variant for WG200 |
| 4644301298 | COVER PLATE | Seals the access port on the housing |
| 0634306323 | O-RING | Hydraulic seal between housing and cover |
| 0636305026 | SCREW PLUG | Seals fluid drain/fill ports |
| 4644301279 | SCREEN SHEET | Filters debris from hydraulic fluid |
| 4644301088 | SEALING CAP | Protects exposed shaft ends |
| 4644109044 | PARKING BRAKE | Electro-hydraulic parking lock assembly |
| 0501211070 | BRAKE | Friction brake for output shaft |
| 0501317036 | PISTON | Hydraulic actuator for clutch/brake packs |
