Overview
The ZF 4616.306.083 COVER is a critical OEM genuine component engineered specifically for the WG 65 Series transmission. This cover serves as the primary sealing and protective barrier for the transmission housing, safeguarding internal gears and hydraulic circuits from contamination while maintaining optimal oil pressure. Positioned on the rear or side of the transmission casing, it integrates directly with the 4616105413: OUTPUT assembly to ensure secure torque transfer. The part number 4616.306.083 is precision-machined to ZF’s exacting tolerances, making it a direct replacement for worn or damaged covers in heavy-duty industrial applications.
Symptoms of Failure
- Transmission oil leaks at the cover gasket: A degraded or cracked cover often results in visible oil seepage around the mating surface, leading to low fluid levels and potential gear damage.
- Gear slipping under load: When the cover fails to maintain internal pressure, hydraulic clutch engagement becomes inconsistent, causing intermittent slipping during acceleration or heavy hauling.
- Contaminated transmission fluid: A compromised cover allows dirt and moisture to enter the housing, accelerating wear on the 4616101117: TRANSMISSION HOUSING and internal bearings.
- Unusual whining or grinding noises: Misalignment or warping of the cover can create metal-on-metal contact with rotating components, producing audible distress signals from the transmission.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4616.306.083 |
| Material | Die-cast aluminum alloy (A380) |
| Weight | 2.4 kg (5.3 lbs) |
| Dimensions (L x W x H) | 320 mm x 210 mm x 45 mm |
| OEM Reference | ZF 4616.306.083 |
| Surface Treatment | Corrosion-resistant anodized coating |
| Bolt Torque Spec | 45 Nm (33 ft-lbs) |
Compatibility
This cover is designed for the WG 65 Series transmission family, which includes models such as the WG180, WG200, and WG250. It is also compatible with certain ZF off-highway and industrial transmissions that share the same housing architecture. For proper installation, pair this cover with the 4616203017: OUTPUT FLANGE and secure it using the 0636011038: HEXAGON SCREW to achieve factory-specified clamping force.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105413 | OUTPUT | Transfers rotational force from transmission to driveline |
| 4616203017 | OUTPUT FLANGE | Connects output shaft to universal joint |
| 4616101117 | TRANSMISSION HOUSING | Main structural casing for gear and clutch assembly |
| 0636011038 | HEXAGON SCREW | Secures cover to housing (M10 x 30 mm) |
| 0636016015 | HEXAGON SCREW | Fastener for output flange attachment |
| 0631306085 | CYLINDRICAL PIN | Alignment pin for precise cover positioning |
| 0634313118 | O-RING | Seals cover-to-housing interface |
| 0732611049 | FILTER INSERT | Traps debris in hydraulic oil circuit |
| 0634303718 | O-RING | Secondary seal for output flange |
| 0636610082 | STUD | Threaded rod for mounting auxiliary brackets |
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