6V-5391 37.77 mm ID O-Ring
Cat® O-rings for hydraulic check valves prevent fluid backflow, maintaining one-way flow
Description
O-rings are used for static sealing and some dynamic applications.
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.
Specifications
| Compatible | Anti-Wear Agents; Alpha-Olefin-Based Synthetic Lubricants; Glycols; Hydrocarbon Fuels; Petroleum-Based Lubricants; Silicone Oils and Greases; Water, Water-Based Engine Coolants; ORFS, STORS Seals |
|---|---|
| Material Hardness | 90A |
| Dash Size | 0 in |
| Polymer | NBR (Nitrile butadiene) |
| Cross-Section Diameter | 2.62 mm (0.103 in) |
| Inside Diameter | 37.77 mm (1.487 in) |
| Material | NBR – Nitrile |
Compatible Equipment
- Generator Sets: 3406C, 3406B
- Motor Graders: 140G, 316F
- Wheel Excavators: M313D, M322D, M320D2, M320, M315D, M315, M317D2, M315D2
- Compactors: CS12, CP56B, CB-534D, CS56B, CS68B
- Dozers: D9R, D8N, D7H, D8R
- Excavators: 349F L, 313D2, 352, 340, 312D2 GC, 318D L, 312C L, 312E L, 312D2 L, 312C, 314D CR, 313F L, 312D, 311C, 313D2-GC, 312D L, 314D LCR, 314C, 312D2, 312E, 313D2 GC, 315C, 318D2 L, 315D L, 311D LRR, 313D, 312F, 318D2, 315F LCR, 349E L, 349E, 352F, 349E L VG, M325D L MH, 330
- Wheel Loaders: 950H, 966H, 972H
- Skid Steer Loaders: 313D2 LGP
Additional information
| Machine Model | 140G, 311C, 311D LRR, 312C, 312C L, 312D, 312D L, 312D2, 312D2 GC, 312D2 L, 312E, 312E L, 312F, 313D, 313D2, 313D2 GC, 313D2 LGP, 313D2-GC, 313F L, 314C, 314D CR, 314D LCR, 315C, 315D L, 315F LCR, 316F, 318D L, 318D2, 318D2 L, 330, 340, 3406B, 3406C, 349E, 349E L, 349E L VG, 349F L, 352, 352F, 950H, 966H, 972H, CB-534D, CP56B, CS12, CS56B, CS68B, D7H, D8N, D8R, D9R, M313D, M315, M315D, M315D2, M317D2, M320, M320D2, M322D, M325D L MH |
|---|---|
| Equipment Type | Excavators, Wheel Excavators, Wheel Loaders, Skid Steer Loaders, Dozers, Motor Graders, Compactors, Generator Sets |
| Part Source | Genuine OEM |








