When your hydraulic cylinder starts seeping fluid or that fitting won’t hold pressure like it should, you need a reliable seal that can handle the punishment of daily farm work. This 2-1/2 inch ID by 2-3/4 inch OD O-ring is built to stop leaks in hydraulic systems, keeping your equipment running and your hydraulic fluid where it belongs—in the system, not on the ground.
What You’re Getting
- Durable Buna-N rubber that stands up to hydraulic fluid, temperature swings, and pressure cycles
- 70 durometer rating provides the right balance of flexibility and strength for farm equipment
- Ten O-rings per package gives you spares for future repairs or multiple applications
- Standard 1/8 inch cross-section fits common hydraulic cylinder bores and fittings
- Precise dimensions ensure proper fit in grooves and seal faces
Built for Real Farm Work
These O-rings handle the demanding conditions found in tractor hydraulic systems, loader cylinders, and implement connections. Whether you’re sealing a bucket cylinder on your loader, fixing a leaky three-point hitch cylinder, or rebuilding hydraulic fittings, this size works in countless applications across different brands and models of farm equipment.
Made to Last
Buna-N rubber resists the petroleum-based hydraulic fluids common in agricultural equipment while maintaining its sealing properties through thousands of pressure cycles. The material stays flexible in cold weather and won’t harden or crack under the heat generated by hard-working hydraulic systems. This isn’t a temporary fix—it’s a proper repair that lasts.
Good to Know
Always clean the O-ring groove thoroughly before installation and check that the surfaces are smooth. A tiny nick or piece of debris will cause the new O-ring to fail quickly. Lightly coat the O-ring with hydraulic fluid before assembly to prevent pinching during installation. Having ten in a package means you can tackle multiple repairs or keep spares in your toolbox.








