127-9485 120 mm OD O-Ring
Cat® Rubber O-Ring for Hydraulic Piston Motors and Piston Pumps
Description
OD-controlled O-rings are used in sealing applications where the seal outside diameter is the critical dimension.
Features
Cat® O-rings are made from materials compatible with the fluids, temperatures and pressures in Cat engines and machines. These materials resist wear and extrusion, giving the seals excellent compression set resistance. 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 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.
Applications
OD-controlled O-rings are used in many static and dynamic joints in Cat machines and engines, including ORFS (O-Ring Face Seal) and STOR (Straight Thread O-Ring) couplings and adapters.
Specifications
| Polymer | NBR (Nitrile butadiene) |
|---|---|
| Material | Nitrile / NBR / HNBR / XNBR Rubber |
| Material Hardness | 75A |
| Cross-Section Diameter | 2.5 mm (0.1 in) |
| Inside Diameter | 120 mm (4.528 in) |
Compatible Equipment
- Generator Sets: C9
- Track Loaders: 973K, 982, 972, 826K, 834H, 824C
- Compactors: CS7, 824K, 825K, CS11, CS-54, CS54B, CP54B, CS64B, CS-533E, CS-54B
- Engines: C13, C27, C15, C11, C32, C18
- Excavators: 390F L, 390D L, 374F, 6030, 385B, 385C L, 345C, 390F, 621K, 385C, 374F L, 345C L, 385C FS, 621H, 390D, 6020B, 365B L
- Asphalt Pavers: AD63
- Motor Graders: 18, 16M3, 16, 14
- Wheel Excavators: MD6200
- Dozers: D8T, D7, D8, D8R, D6T LGP, D6T, D8N, D5N
- Wheel Loaders: 980H, RM500B, 972H, 980G, 972G, 980, 966, 966H, 924GZ, 966K, 924HZ, 966L, 950L, 972L, 980L, 988H, 988G
- Off-Highway Trucks: 772G, 770G
Additional information
| Machine Model | 14, 16, 16M3, 18, 345C, 345C L, 365B L, 374F, 374F L, 385B, 385C, 385C FS, 385C L, 390D, 390D L, 390F, 390F L, 6020B, 6030, 621H, 621K, 770G, 772G, 824C, 824K, 825K, 826K, 834H, 924GZ, 924HZ, 950L, 966, 966H, 966K, 966L, 972, 972G, 972H, 972L, 973K, 980, 980G, 980H, 980L, 982, 988G, 988H, AD63, C11, C13, C15, C18, C27, C32, C9, CP54B, CS-533E, CS-54, CS-54B, CS11, CS54B, CS64B, CS7, D5N, D6T, D6T LGP, D7, D8, D8N, D8R, D8T, MD6200, RM500B |
|---|---|
| Equipment Type | Excavators, Wheel Excavators, Wheel Loaders, Track Loaders, Dozers, Motor Graders, Off-Highway Trucks, Compactors, Asphalt Pavers, Engines, Generator Sets |
| Part Source | Genuine OEM |








