Overview
The ZF 4642.199.393 LOOSE PARTS kit is a critical service component designed specifically for the WG 150 transmission series. This OEM genuine part consolidates essential hardware and sealing elements that maintain the structural integrity of the gearbox assembly. Positioned within the main casing interface, the 4642.199.393 kit ensures that internal pressure regulation and fluid containment remain optimal during high-torque operations. When paired with the 4642101047 TRANSMISSION HOUSING or the 4642301207 TRANSMISSION HOUSING, this loose parts set provides the necessary fasteners and spacers to secure the shift mechanism and prevent vibrational loosening. The SKU 4642.199.393 is frequently ordered during major overhauls to replace worn clips, washers, and seals that degrade over extended service intervals.
Symptoms of Failure
- Transmission fluid seepage at housing joints – When the 4642.199.393 loose parts wear, the sealing elements lose elasticity, leading to visible oil drips around the WG150 casing flanges. This is a common long-tail search query for “ZF WG150 oil leak repair kit.”
- Intermittent gear slippage under load – Degraded retaining components within this kit can cause slight axial movement of the shift forks, resulting in momentary loss of drive engagement during acceleration.
- Abnormal rattling or metallic noise from the bell housing – Loose hardware from a failing 4642.199.393 assembly allows internal components to vibrate against the 0730365067 TYPE PLATE, creating a distinct chatter that worsens with RPM.
- Difficulty engaging reverse gear – Worn positioning elements in this kit can misalign the shift rail, making reverse selection stiff or requiring multiple attempts.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.199.393 |
| Product Type | Loose Parts Kit (Hardware & Seals) |
| Material Composition | Steel alloy with nitrile rubber seals |
| Weight | 0.45 kg (estimated) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| OEM Reference | ZF 4642.199.393 |
| Thread Pitch (included studs) | M10 x 1.5 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This 4642.199.393 loose parts kit is engineered primarily for the ZF WG 150 series transmissions. Based on the hardware configuration and seal dimensions, it is also compatible with the WG 180 and WG 200 models when used in conjunction with the correct 0631311009 GROOVED STUD for alignment. The kit supports both on-highway and off-highway applications, including municipal trucks and construction loaders. For WG 120 variants, verify the housing bore diameter before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101047 | TRANSMISSION HOUSING | Main casing for gear train support |
| 4642301207 | TRANSMISSION HOUSING | Alternate housing variant for WG150 |
| 0730365067 | TYPE PLATE | Identification plate for transmission specs |
| 0631311009 | GROOVED STUD | Alignment stud for housing assembly |
| 4642301168 | SCREEN SHEET | Filter mesh for oil sump protection |
| 4642301169 | SCREEN SHEET | Secondary filter screen variant |
| 0636100621 | HEXAGON SCREW | Fastener for cover plate retention |
| 4642301186 | SCREEN SHEET | Fine-mesh screen for high-flow systems |
| 4644106300 | SHIFT SYSTEM | Complete shift fork and rail assembly |
| 4644306500 | COVER PLATE | Sealing plate for shift mechanism access |
