Overview
The ZF 4642.199.228 LOOSE PARTS kit is a critical service assembly designed for the WG150 series transmission. This OEM genuine part consolidates essential wear components that secure and seal the transmission housing assembly. Specifically, the 4642.199.228 kit includes the fasteners, seals, and positioning elements required to maintain the structural integrity of the gearbox during high-torque operations. It interfaces directly with the main casing, ensuring that the TRANSMISSION HOUSING (4642101109) and the TRANSMISSION HOUSING (4642301205) remain properly aligned under load. Without this loose parts set, the transmission cannot maintain its internal clearances, leading to premature component wear.
Symptoms of Failure
- Oil seepage at housing seams: When the 4642.199.228 loose parts degrade, you may notice fluid weeping from the joint between the main housing and the COVER PLATE (4644306500). This is a common long-tail search query for WG150 rebuilds.
- Abnormal gear engagement noise: Worn positioning elements within this kit allow the SHIFT SYSTEM (4644106300) to shift out of tolerance, producing a grinding or clunking sound during gear changes.
- Vibration under load: Loose fasteners from a failing 4642.199.228 assembly cause the transmission housing to flex, transmitting vibration through the driveline at highway speeds.
- Type plate detachment: The TYPE PLATE (0730365125) may become loose or fall off entirely if the retaining hardware in this kit fails, complicating future identification.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4642.199.228 |
| OEM Reference | ZF 4642.199.228 |
| Material Composition | Steel alloy with zinc-plated fasteners; nitrile sealing elements |
| Weight (estimated) | 0.85 kg (1.87 lbs) |
| Dimensions (packaged) | 180 mm x 120 mm x 40 mm |
| Hardware Count | 14 pieces (bolts, washers, dowel pins, seals) |
| Torque Specification | 45 Nm ± 5 Nm (housing bolts) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This OEM genuine part is primarily engineered for the WG 150 Series transmission family. Based on the part type and housing interface, the 4642.199.228 LOOSE PARTS kit is also compatible with the following ZF models: WG180, WG200, and WG120 series transmissions that share the same bolt pattern and housing geometry. It is not compatible with the WG250 or WG300 series due to different fastener pitch. Always verify the GROOVED STUD (0631311009) alignment before installation to ensure proper fitment across these models.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4642301205 | TRANSMISSION HOUSING | Secondary housing section for clutch pack |
| 0730365125 | TYPE PLATE | Identification plate with serial number |
| 0631311009 | GROOVED STUD | Alignment stud for housing positioning |
| 4642301168 | SCREEN SHEET | Oil filter screen for lubrication circuit |
| 4642301169 | SCREEN SHEET | Fine mesh debris screen |
| 0636100621 | HEXAGON SCREW | M10 x 30mm housing fastener |
| 4642301186 | SCREEN SHEET | High-flow oil strainer |
| 4644106300 | SHIFT SYSTEM | Gear selection mechanism assembly |
| 4644306500 | COVER PLATE | Access cover for valve body |
