Overview
The ZF 4642.199.805 LOOSE PARTS set is a critical service kit designed specifically for the WG 201 series transmission. This OEM genuine assembly contains the essential fasteners, seals, and positioning elements required to secure internal components within the gearbox housing. Positioned within the main casing, this part ensures that the planetary gear sets and clutch packs remain properly aligned under high torque loads. The SKU 4642.199.805 is frequently ordered during a full rebuild or when addressing oil seepage around the housing joints. For a complete overhaul, technicians often pair this kit with a replacement TRANSMISSION HOUSING (4644101160) to guarantee a leak-free assembly.
Symptoms of Failure
When the ZF 4642.199.805 LOOSE PARTS begin to degrade, operators will notice specific operational issues. Look for these failure indicators to target your diagnostic efforts:
- External oil seepage at housing seams: Worn gaskets or loose fasteners in this kit allow transmission fluid to weep from the main casing, often leaving visible drips under the vehicle.
- Intermittent gear slippage under load: If the retaining hardware loosens, internal clearances shift, causing the clutch packs to slip during acceleration or hill climbs.
- Abnormal metallic rattling from the bell housing: Loose positioning elements can vibrate against the TRANSMISSION HOUSING (4644301323), creating a distinct noise that worsens with RPM changes.
- Difficulty engaging reverse gear: Misalignment caused by worn threaded components in this kit can prevent the reverse piston from seating correctly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.199.805 |
| OEM Reference | ZF 4642.199.805 |
| Material Composition | Steel alloy with zinc plating (fasteners); Nitrile rubber (seals) |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| Thread Pitch (primary bolt) | M10 x 1.5 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This LOOSE PARTS kit is engineered for the ZF WG 201 series, but it also cross-fits several other ZF powershift models. It is directly compatible with the WG180, WG200, and WG210 transmissions used in construction and agricultural machinery. The kit is also suitable for the WG 120 series when paired with the correct THREADED BUSH (4644301189) to adapt thread depths. For installations requiring a sealed oil gallery, always install a new SCREW PLUG (4475280043) from this kit to prevent cross-threading.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101160 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301323 | TRANSMISSION HOUSING | Alternate housing variant for WG200 |
| 4644301189 | THREADED BUSH | Thread adapter for sensor ports |
| 4475280043 | SCREW PLUG | Seals oil passages in the housing |
| 0634306198 | O-RING | Static seal for housing joints |
| 0730365067 | TYPE PLATE | Identification plate for transmission model |
| 4644301161 | COVER PLATE | Access cover for valve body |
| 0636100621 | HEXAGON SCREW | Mounting fastener for cover plates |
| 0631610020 | SET SCREW | Adjustment screw for shift forks |
| 0501218540 | BREATHER | Pressure equalization valve |
