Overview
The ZF 4642.199.765 LOOSE PARTS kit is a critical service assembly designed specifically for the WG 201 series transmission. This genuine OEM part consolidates essential fasteners, seals, and small hardware required during a transmission overhaul or when replacing major subassemblies. The SKU 4642.199.765 ensures that all loose components meet ZF’s exacting tolerances for fit and durability, preventing premature wear in the gear train. When paired with a new TRANSMISSION HOUSING (4644101160) or a TRANSMISSION HOUSING (4644301323), this kit provides the necessary hardware to secure the internal valve body and clutch packs.
Symptoms of Failure
- Oil seepage at housing joints: Worn or missing loose parts can cause hydraulic fluid to weep from the transmission case, leading to low fluid levels and eventual gear slippage.
- Loose or rattling internal components: If the fasteners in this kit degrade, you may hear a metallic rattle from the bell housing during acceleration, indicating that the THREADED BUSH (4644301189) or SCREW PLUG (4475280043) has backed out.
- Intermittent gear engagement failure: A compromised loose parts assembly can cause the shift valve to stick, resulting in delayed or harsh engagement when shifting from Neutral to Drive.
- Contaminated transmission fluid: When the kit’s sealing elements fail, debris can enter the hydraulic circuit, accelerating wear on the torque converter and clutch discs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4642.199.765 |
| Material | Steel alloy with zinc-nickel plating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions | 120 mm x 80 mm x 40 mm |
| OEM Reference | ZF 4642.199.765 |
| Thread Size | M8 x 1.25 (primary fasteners) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This loose parts kit is engineered for the ZF WG 201 series, but it also fits the WG180 and WG200 models due to shared housing architecture. It is commonly used in off-highway vehicles, agricultural tractors, and construction equipment where the WG transmission is installed. Always verify the part number against your transmission’s serial plate before ordering. For complete assembly, consider the O-RING (0634306198) and TYPE PLATE (0730365067) to ensure a sealed and identifiable unit.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4644101160 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4644301323 | TRANSMISSION HOUSING | Alternative housing variant for WG series |
| 4644301189 | THREADED BUSH | Provides threaded anchor point for fasteners |
| 4475280043 | SCREW PLUG | Seals hydraulic passages in valve body |
| 0634306198 | O-RING | Creates fluid-tight seal between components |
| 0730365067 | TYPE PLATE | Identification plate for transmission model |
| 4644301161 | COVER PLATE | Protects internal components from debris |
| 0636100621 | HEXAGON SCREW | Secures housing to bell housing |
| 0631610020 | SET SCREW | Locks adjustment mechanisms in place |
| 0501218540 | BREATHER | Equalizes pressure inside transmission |
