Overview
The ZF 4642.199.225 LOOSE PARTS kit is a critical service component designed specifically for the WG 150 series transmission. This OEM genuine assembly includes all necessary fasteners, seals, and small hardware required to secure internal transmission elements during a rebuild or major repair. Positioned within the main gear train housing, this kit ensures that the shift system and planetary gear sets remain properly torqued and aligned under heavy load conditions. The SKU 4642.199.225 is factory-matched to ZF’s original specifications, eliminating guesswork during installation. When paired with a 4642101109: TRANSMISSION HOUSING or a 4642301205: TRANSMISSION HOUSING, this loose parts set provides the exact hardware needed to complete the assembly without sourcing individual bolts or washers.
Symptoms of Failure
When the ZF 4642.199.225 LOOSE PARTS kit begins to fail or is missing components, operators often notice distinct performance issues. Oil leaks around the housing seam are a primary indicator, as degraded gaskets or loose fasteners allow transmission fluid to escape. Gear slipping under load occurs when internal hardware loosens, causing misalignment between the clutch packs and planetary gears. Unusual metallic rattling or vibration from the transmission bell housing suggests that retaining bolts have backed out, potentially damaging the 0730365125: TYPE PLATE or other identification components. Finally, difficulty engaging forward or reverse gears can result from a compromised shift linkage due to loose mounting hardware within this kit.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.199.225 |
| Product Type | LOOSE PARTS (Hardware Kit) |
| Material | Steel (fasteners), Nitrile Rubber (seals) |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 150 mm x 100 mm x 40 mm |
| OEM Reference | ZF 4642.199.225 |
| Thread Size (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 150 series, but its hardware specifications also support adjacent models in the WG family. Compatible transmissions include the WG 150, WG 180, and WG 200 series, where the same bolt pattern and seal dimensions are used. It is also suitable for certain WG 120 variants that share the modular housing design. For installations requiring a 0631311009: GROOVED STUD, this kit provides the matching nuts and washers to complete the fastening system. Always verify the housing casting number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG150 |
| 0730365125 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Alignment stud for housing assembly |
| 4642301168 | SCREEN SHEET | Filter screen for oil circulation |
| 4642301169 | SCREEN SHEET | Secondary filter screen variant |
| 0636100621 | HEXAGON SCREW | Fastener for cover plate mounting |
| 4642301186 | SCREEN SHEET | Fine mesh screen for debris filtration |
| 4644106300 | SHIFT SYSTEM | Gear selection mechanism assembly |
| 4644306500 | COVER PLATE | Protective plate for shift system access |
