Overview
The ZF 4166.339.288 Gasket for Converter is a precision-engineered sealing component designed for the WG 65 Series transmission family. This OEM genuine part sits between the torque converter housing and the main transmission casing, creating a critical fluid-tight barrier that prevents hydraulic oil from escaping the converter circuit. The SKU 4166.339.288 ensures exact fitment and material compatibility with ZF’s proprietary sealing surfaces, maintaining the high-pressure integrity required for proper converter lock-up and clutch application. Without this gasket, the converter assembly cannot sustain the necessary hydraulic pressure for efficient power transfer.
Symptoms of Failure
- Torque converter oil leaks at the housing seam: When the 4166.339.288 gasket degrades, transmission fluid seeps from the joint between the converter housing and the TRANSMISSION HOUSING, leaving visible drips or puddles under the vehicle.
- Low converter pressure causing gear slipping: A compromised gasket allows pressure loss in the converter circuit, leading to delayed engagement or slipping during acceleration, especially under load.
- Contaminated transmission fluid from external debris ingress: A failed seal permits dirt and moisture to enter the converter area, accelerating wear on internal components and causing fluid discoloration.
- Overheating due to reduced converter efficiency: Insufficient sealing disrupts fluid circulation, causing the torque converter to run hotter than normal and triggering thermal warning codes.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4166.339.288 |
| Material | Nitrile rubber (NBR) with fiber reinforcement |
| Inner Diameter | 288 mm (estimated) |
| Outer Diameter | 310 mm (estimated) |
| Thickness | 1.5 mm |
| Weight | 0.12 kg |
| OEM Reference | ZF 4166.339.288 |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This gasket is specifically engineered for ZF WG 65 Series transmissions, including models such as the WG180, WG200, and WG210. It is also compatible with certain WG 65 variants used in construction and agricultural machinery. The 4166.339.288 gasket interfaces directly with the HOUSING (part 4616301307) and the HOUSING (part 4616301309) in the converter assembly. For proper installation, it must be used with the HEXAGON SCREW (part 0636011118) to secure the housing components.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101066 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011118 | HEXAGON SCREW | Fastener for housing assembly |
| 4616301307 | HOUSING | Converter housing component |
| 4616301309 | HOUSING | Converter housing component |
| 0636011038 | HEXAGON SCREW | Fastener for converter assembly |
| 0636016015 | HEXAGON SCREW | Fastener for transmission casing |
| 0631306085 | CYLINDRICAL PIN | Alignment pin for housing mating |
| 0634313118 | O-RING | Seal for hydraulic passages |
| 0636304019 | SCREW PLUG | Port sealing plug |
| 0634801152 | SEALING RING | Static seal for threaded connections |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
