Overview
The ZF 4644.183.127 LOOSE PARTS kit is a critical service component designed specifically for the WG 200 series transmission. This OEM genuine part contains the necessary loose hardware and small components required to secure and seal internal assemblies during a rebuild or major repair. Positioned within the transmission’s main housing, these parts ensure that key elements like the valve body and clutch packs remain properly fastened under high torque and vibration. The SKU 4644.183.127 is a factory-original release, guaranteeing exact fitment and metallurgical consistency with ZF’s engineering tolerances. When replacing the 4644101249: TRANSMISSION HOUSING or the 4644301402: TRANSMISSION HOUSING, this loose parts kit is mandatory to complete the assembly correctly.
Symptoms of Failure
- Transmission oil seepage at housing joints: Worn or missing loose parts can cause micro-gaps, leading to slow but persistent fluid loss around the 0634306323: O-RING sealing surfaces.
- Audible rattling or loose internal components: When fasteners in this kit fatigue, you may hear metallic noise from the bell housing area, especially during gear changes.
- Intermittent gear engagement failure: Loose hardware can allow the 4644301298: COVER PLATE to shift, disrupting hydraulic pressure to clutch packs.
- Vibration during acceleration: Unsecured internal parts create imbalance, transmitting vibration through the drivetrain at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4644.183.127 |
| Material | Hardened steel / zinc-plated alloy |
| Weight | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| OEM Reference | ZF 4644.183.127 |
| Compatible Series | WG 200 |
Compatibility
This loose parts kit is engineered for the ZF WG 200 series transmissions. It is also compatible with the WG 180 series when used in conjunction with the correct housing variants. The kit directly interfaces with the 0636305026: SCREW PLUG and the 4644301279: SCREEN SHEET for oil filtration pathways. For parking brake assemblies, verify fitment with the 4644109044: PARKING BRAKE and the 0501211070: BRAKE components. Always confirm your transmission model number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101249 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4644301402 | TRANSMISSION HOUSING | Alternate housing variant for WG200 |
| 4644301298 | COVER PLATE | Seals access port to valve body |
| 0634306323 | O-RING | Hydraulic seal for fluid passages |
| 0636305026 | SCREW PLUG | Threaded plug for oil drain/fill ports |
| 4644301279 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4644301088 | SEALING CAP | Protective cap for sensor ports |
| 4644109044 | PARKING BRAKE | Mechanical parking lock assembly |
| 0501211070 | BRAKE | Friction brake component for PTO |
| 0501317036 | PISTON | Hydraulic actuation piston for clutch |
