Overview
The ZF 4616.199.177 LOOSE PARTS kit is a critical service component engineered specifically for the WG 65 Series transmission. This genuine OEM assembly contains the necessary loose hardware and small components required to secure and seal internal transmission elements during a rebuild or major repair. Positioned within the main gear train housing, this kit ensures that all fasteners, pins, and seals are correctly installed to maintain hydraulic pressure and mechanical alignment. The SKU 4616.199.177 is factory-matched to the WG65 platform, guaranteeing that every 0636011118 HEXAGON SCREW and sealing element meets ZF’s original torque and material specifications. Without this specific loose parts set, reassembly of the transmission housing can lead to improper clamping forces and premature wear.
Symptoms of Failure
- External oil seepage at housing joints: When the 4616.199.177 loose parts degrade or are missing, the sealing rings and screws cannot maintain a proper seal, causing transmission fluid to weep from the 4616301304 HOUSING interface.
- Intermittent gear engagement or slipping: Worn or loose hexagon screws from this kit allow the 4616101140 TRANSMISSION HOUSING to shift slightly under load, disrupting clutch pack alignment and causing delayed shifts.
- Abnormal vibration during torque converter lockup: Missing cylindrical pins or incorrect screw plugs in the loose parts set can create play between the 4616301309 HOUSING and the main casing, leading to driveline shudder.
- Increased operating noise from the gear train: If the O-rings and sealing rings within the 4616.199.177 kit fail, hydraulic pressure drops, resulting in cavitation and a whining sound from the pump area.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4616.199.177 |
| Component Type | Loose Parts Kit (Screws, Pins, Seals) |
| Material | Steel (screws), NBR (O-rings), Copper (sealing rings) |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| OEM Reference | ZF 4616.199.177 |
| Thread Size (primary screws) | M10 x 1.5 (hexagon screws) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF 4616.199.177 loose parts kit is designed for the WG 65 Series transmission family. It is directly compatible with the following ZF models: WG65, WG80, WG120, WG180, and WG200. The kit is also suitable for select off-highway and marine variants that share the same housing architecture, including the WG150 and WG250 series. Always verify the specific housing casting number—such as the 4616101140 TRANSMISSION HOUSING—to confirm fitment before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101140 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011118 | HEXAGON SCREW | Secures housing halves together |
| 4616301304 | HOUSING | Intermediate housing for clutch assembly |
| 4616301309 | HOUSING | Rear housing for output shaft support |
| 0636011038 | HEXAGON SCREW | Fastener for valve body mounting |
| 0636016015 | HEXAGON SCREW | High-tensile screw for bell housing |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing centering |
| 0634313118 | O-RING | Hydraulic seal between housing faces |
| 0636304019 | SCREW PLUG | Closes oil passages in housing |
| 0634801152 | SEALING RING | Static seal for screw plug threads |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
