Overview
The ZF 4642.199.391 LOOSE PARTS kit is a critical service component designed specifically for the WG 200 Series transmission. This genuine OEM assembly contains the essential loose hardware required to secure and seal internal transmission elements, ensuring proper alignment and hydraulic integrity during rebuilds or major repairs. The SKU 4642.199.391 is often utilized when replacing the 4644101222: TRANSMISSION HOUSING or the 4644301226: TRANSMISSION HOUSING, as these housings require fresh fasteners and seals to prevent premature wear. This kit sits within the main casing assembly, providing the necessary clips, bolts, and retainers that hold the valve body and clutch packs in precise position.
Symptoms of Failure
- Transmission oil leaks from housing joints: When the loose parts in this kit degrade, the sealing surfaces lose compression, leading to external fluid seepage around the bell housing or pan rail.
- Gear slipping under load: Worn retainers or loose fasteners can cause internal component shift, resulting in intermittent clutch pack disengagement and erratic gear engagement.
- Unusual rattling or metallic noise from the transmission: Missing or fatigued hardware allows internal parts to vibrate against the 0730365067: TYPE PLATE or adjacent structures, creating audible chatter during operation.
- Difficult shifting or delayed engagement: Degraded fasteners can alter the alignment of the valve body, causing hydraulic pressure inconsistencies and sluggish gear changes.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4642.199.391 |
| Material Composition | High-strength steel with zinc plating; includes nitrile rubber seals |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 180 mm x 120 mm x 40 mm |
| OEM Reference | ZF 4642.199.391 (Genuine) |
| Thread Pitch (primary bolts) | M8 x 1.25 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This loose parts kit is engineered primarily for the ZF WG 200 Series transmissions, including models such as WG180, WG200, and WG210. It is also compatible with certain variants of the WG 150 and WG 250 series that share the same housing architecture. The kit integrates directly with the 0631311009: GROOVED STUD to secure the transmission housing, and it is frequently ordered alongside the 4644301298 COVER PLATE and the 0634306525 O-RING for complete sealing solutions. Always verify your transmission model suffix before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101222 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 4644301226 | TRANSMISSION HOUSING | Alternate housing variant for WG200 series |
| 0730365067 | TYPE PLATE | Identification plate for transmission model and serial number |
| 0631311009 | GROOVED STUD | Alignment and fastening stud for housing mounting |
| 4644301298 | COVER PLATE | Seals the access port on the transmission housing |
| 0634306525 | O-RING | Hydraulic seal for fluid passages |
| 0636305026 | SCREW PLUG | Closes oil drain or fill ports |
| 4475280078 | ADAPTER | Connects transmission to external hydraulic lines |
| 4644301279 | SCREEN SHEET | Filter mesh for oil sump protection |
| 4644301088 | SEALING CAP | Protects unused ports from contamination |
