Description
O-rings (such as 203-3940) 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 wear and extrusion and give the seals excellent compression set resistance. In addition, some Cat O-rings are PTFE coated 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 the O-ring needs of your Cat and other mobile equipment.
Cat sealing systems prevent leaks and contamination of more expensive parts. Genuine Cat seals protect your investment.
Attributes
- Seal Type: O-Ring
- AS568 Dash Size: -113
- Cross-Section Diameter: 2.62 mm (0.10 in)
- Inside Diameter: 13.94 mm (0.55 in)
Applications
Refer to your Operation and Maintenance Manual or contact MECHSC for more information.
Specifications
| Material Hardness | 78A |
|---|---|
| Polymer | HNBR (Hydrogenated nitrile) |
| Dash Size | 113 in |
| Coating | Not Specified |
| Color Note | Actual O-ring color may differ from the image. |
| SAE AS568 Dash Size | -113 |
| Outside Diameter | 0.76 mm (19.18 in) |
| Primary Seal Material | Rubber |
| Remarks | Dimensions and material descriptions are for reference only. |
| Material Description | HNBR rubber has a service temperature range of -40 to 115C and is resistant to fuel, oil and lubricants, while providing excellent abrasion and cut resistance. |
| Hardness | 78 Shore A |
| Seal/O-Ring Type | Standard |
| Cross-Section Diameter | 2.62 mm (0.1 in) |
| O-Ring Type | Standard |
| Material | HNBR |
| Inside Diameter | 13.94 mm (0.55 in) |
Compatible Equipment
- Generator Sets: C4.4, 3406B, 3406C, C7.1
- Track Loaders: 982, 972, 953K, 963, 963K, 953, 824C, 816F, 826H
- Cold Planers: PL72, TH360B, PL61
- Compactors: 816, 815, 814, C-15
- Engines: C15, C32, C7, C175-16, C18
- Excavators: 3456, 3126, 330D L, 621G, 621H, 621K, 416F2, 428F, 325D, 432, 434F2, 3516E, 336D2 L, 325D L, 325C, 329D L, 324D L, 325C L, 657G, 637G
- Asphalt Pavers: AD30
- Skid Steer Loaders: 3126B
- Motor Graders: 140 GC, 140H, 120, 16H, 120H
- Dozers: D10T2, D10T, D6N, D7R II, D8N, D5N, D9T, D6R II, D6R III, D10, D9, D10R
- Wheel Loaders: 950 GC, 950, 988G, R2900G, 972L, 966F, 980, 966, 926M, 924K, 938M, 910, R2900 XE, 906K, 966L, 980H, 950H, 950L, 962L, 938K
- Off-Highway Trucks: 793, 745, 740 GC, 770G, 777E, 730, 794 AC, 793D, 725, 735, 789D, 777, 789, 740, 798 AC, 773, 793F, 745C, 796 AC, 725C2, 797F, 773F
Additional information
| Machine Model | 120, 120H, 140 GC, 140H, 16H, 3126, 3126B, 324D L, 325C, 325C L, 325D, 325D L, 329D L, 330D L, 336D2 L, 3406B, 3406C, 3456, 3516E, 416F2, 428F, 432, 434F2, 621G, 621H, 621K, 637G, 657G, 725, 725C2, 730, 735, 740, 740 GC, 745, 745C, 770G, 773, 773F, 777, 777E, 789, 789D, 793, 793D, 793F, 794 AC, 796 AC, 797F, 798 AC, 814, 815, 816, 816F, 824C, 826H, 906K, 910, 924K, 926M, 938K, 938M, 950, 950 GC, 950H, 950L, 953, 953K, 962L, 963, 963K, 966, 966F, 966L, 972, 972L, 980, 980H, 982, 988G, AD30, C-15, C15, C175-16, C18, C32, C4.4, C7, C7.1, D10, D10R, D10T, D10T2, D5N, D6N, D6R II, D6R III, D7R II, D8N, D9, D9T, PL61, PL72, R2900 XE, R2900G, TH360B |
|---|---|
| Equipment Type | Excavators, Wheel Loaders, Track Loaders, Skid Steer Loaders, Dozers, Motor Graders, Off-Highway Trucks, Compactors, Asphalt Pavers, Cold Planers, Engines, Generator Sets |
| Part Source | Genuine OEM |
