Overview
The ZF 4616.306.090 GASKET for WG 65 is a precision-engineered sealing component designed to maintain hydraulic integrity within the WG 65 series transmission. Positioned between the main casing and the auxiliary housing, this OEM genuine gasket prevents fluid migration and pressure loss, ensuring consistent clutch engagement and torque converter performance. The SKU 4616.306.090 is manufactured to ZF’s exacting tolerances, providing a reliable barrier against contamination and leakage in heavy-duty industrial drivetrains. This gasket is a critical element in the transmission’s sealing architecture, working in conjunction with the 4616101066 TRANSMISSION HOUSING to create a leak-proof assembly.
Symptoms of Failure
When the 4616.306.090 gasket deteriorates, operators may notice several distinct failure indicators. External oil seepage around the WG 65 housing joint is the most common symptom, often visible as dark streaks on the transmission casing. Gradual gear slipping under load occurs as internal hydraulic pressure drops due to fluid bypassing the gasket. Contaminated transmission fluid with metallic particles may appear if the gasket allows debris ingress between mating surfaces. Erratic shift timing during cold starts frequently signals a compromised seal, as viscosity changes exacerbate minor leaks. Addressing these issues promptly prevents damage to the 0636011118 HEXAGON SCREW fasteners and adjacent components.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4616.306.090 |
| Material | Nitrile rubber (NBR) with fiber reinforcement |
| Thickness | 1.5 mm |
| Outer Diameter | 195 mm |
| Inner Diameter | 165 mm |
| Weight | 0.045 kg |
| OEM Reference | ZF 4616.306.090 |
| Operating Temperature | -40°C to +120°C |
| Hardness (Shore A) | 70 ± 5 |
Compatibility
This gasket is specifically engineered for the ZF WG 65 series transmission, but its sealing profile also applies to several related models. Compatible transmissions include the WG 65, WG 80, WG 120, and WG 180 series when used with the corresponding 4616301307 HOUSING or 4616301309 HOUSING. Always verify housing part numbers before installation, as variations exist between early and late production units. The gasket is not compatible with WG 200 or larger series without adapter plates.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101066 | TRANSMISSION HOUSING | Main casing for gear assembly |
| 0636011118 | HEXAGON SCREW | Fastener for housing joints |
| 4616301307 | HOUSING | Auxiliary housing section |
| 4616301309 | HOUSING | Alternate housing variant |
| 0636011038 | HEXAGON SCREW | Mounting bolt for covers |
| 0636016015 | HEXAGON SCREW | High-torque fastener |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housings |
| 0634313118 | O-RING | Static seal for fluid ports |
| 0636304019 | SCREW PLUG | Drain/fill port closure |
| 0634801152 | SEALING RING | Copper crush washer for plugs |
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