Overview
The ZF 4642.199.380 LOOSE PARTS set is a critical OEM genuine service kit designed specifically for the WG 201 series transmission. This assembly contains the essential loose hardware required to secure and seal internal components within the transmission housing. As a precision-engineered kit, the SKU 4642.199.380 ensures that all fasteners, bushings, and sealing elements meet ZF’s exacting tolerances for reliable power transfer and hydraulic pressure retention. When rebuilding or servicing a WG201, this loose parts kit is indispensable for maintaining the structural integrity of the gear train and valve body assembly. It is frequently ordered alongside the 4644101160: TRANSMISSION HOUSING to guarantee a complete overhaul.
Symptoms of Failure
When the components within the 4642.199.380 kit degrade, operators typically encounter several distinct failure modes. Oil seepage around the housing mating surfaces is the most common indicator, often caused by worn threaded bushings or degraded sealing hardware. Another frequent symptom is intermittent gear engagement or delayed shifting, which results from loose fasteners allowing internal components to shift out of alignment. You may also notice abnormal vibration or whining noise during acceleration, a sign that the loose parts are no longer providing adequate clamping force to the planetary gear sets. Finally, hydraulic fluid contamination with metallic debris can occur when worn bushings begin to shed material into the oil circuit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.199.380 |
| OEM Reference | ZF 4642.199.380 |
| Material Composition | Steel alloy, hardened steel, nitrile rubber (seals) |
| Weight (estimated) | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 40 mm |
| Thread Specifications | M8, M10, M12 (various) |
| Operating Temperature Range | -40°C to +120°C |
| Compatible Fluid Type | ZF TE-ML 03, 04, 05, 07 |
Compatibility
This loose parts kit is engineered primarily for the ZF WG 201 series transmissions, which are widely used in off-highway vehicles, construction equipment, and agricultural machinery. Based on the part’s design and thread patterns, it is also compatible with the WG 180 and WG 200 series transmissions that share the same housing architecture. For installations requiring additional sealing, the 4644301323: TRANSMISSION HOUSING provides the necessary structural support. When replacing the housing, always pair it with the 4644301189: THREADED BUSH to ensure proper thread engagement. The kit also integrates with the 4475280043: SCREW PLUG for sealing drain or fill ports.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101160 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301323 | TRANSMISSION HOUSING | Alternative housing variant for WG series |
| 4644301189 | THREADED BUSH | Provides threaded insert for bolt retention |
| 4475280043 | SCREW PLUG | Seals hydraulic ports and access points |
| 0634306198 | O-RING | Creates fluid-tight seal between components |
| 0730365067 | TYPE PLATE | Identification plate for transmission model |
| 4644301161 | COVER PLATE | Encloses valve body or access opening |
| 0636100621 | HEXAGON SCREW | Fastener for housing and cover attachment |
| 0631610020 | SET SCREW | Adjustable locking fastener for shafts |
| 0501218540 | BREATHER | Equalizes pressure and vents moisture |
