3E-6799 126.72 mm ID O-Ring
Cat® O-Ring (Torque Converter, Power Train)
Description
O-rings are used for static sealing and some dynamic applications. Cat® O-rings are made from materials matched to the fluids, temperatures and pressures in Cat engines and machines. These materials resist abrasion and extrusion and provide excellent compression set resistance for the seal. In addition, some Cat O-rings are coated with PTFE to minimize seal twisting and cutting during installation.
Our O-rings are dimensioned to strictly follow tight tolerances, ensuring they are properly seated in the seal groove with the right seal compression. With more than 2500 different sizes and materials of O-rings, Cat O-rings are the best solution for your O-ring needs on Cat and other mobile equipment. Cat sealing systems prevent leaks and contamination of more expensive parts. Protect your investment with Genuine Cat seals. O-rings are used in many static and dynamic joints in Cat machines and engines.
Specifications
| Polymer | FKM (Fluorocarbon) |
|---|---|
| Material Hardness | 75A |
| Dash Size | 49 in |
| Compatible | Diester Lubricants; Halogenated Hydrocarbons (Above 100 Degrees C); Excellent Compression Set Resistant Material; Petroleum Fluids; Phosphate Ester Fluids; Silicone Oils; Certain Acids |
| Cross-Section Diameter | 1.78 mm (0.07 in) |
| Inside Diameter | 126.72 mm (4.989 in) |
| Material | FKM |
Compatible Equipment
- Generator Sets: C7.1
- Track Loaders: 816F
- Compactors: 816, 815, 814
- Dozers: D6N, D6M
- Wheel Loaders: 966 GC
- Off-Highway Trucks: 773, 773E, 773D, 771D, 777E, 777
Additional information
| Machine Model | 771D, 773, 773D, 773E, 777, 777E, 814, 815, 816, 816F, 966 GC, C7.1, D6M, D6N |
|---|---|
| Equipment Type | Wheel Loaders, Track Loaders, Dozers, Off-Highway Trucks, Compactors, Generator Sets |
| Part Source | Genuine OEM |








