Description

When a hydraulic cylinder is weeping oil or a plumbing connection is dripping, it’s usually one of these simple rubber O-rings that’s gone bad. These Buna-N O-rings are workhorses in farm equipment—they handle the pressure in hydraulic systems, keep fuel lines sealed, and maintain proper sealing in countless applications around the farm and shop. Getting a 10-pack means you’ll have spares on hand when you need them most.

What You’re Getting

High-quality 70 durometer Buna-N rubber that resists oils, fuels, and hydraulic fluids
Precise 5-5/8 inch inside diameter and 5-7/8 inch outside diameter for exact fit applications
1/8 inch cross-section width provides proper groove fill and sealing pressure
10-piece package gives you plenty for repairs and smart to keep extras in your parts bin
Temperature range from -40°F to 230°F handles everything from winter startups to hot summer operations

Built for Real Farm Work

These O-rings are sized for larger hydraulic components, plumbing connections, and equipment seals commonly found on tractors, implements, and shop equipment. Whether you’re rebuilding a hydraulic cylinder, fixing a fuel system leak, or maintaining irrigation equipment, having the right O-ring size saves trips to town and keeps you working.

Made to Last

Buna-N rubber is the go-to choice for farm applications because it holds up to petroleum products, doesn’t get brittle in cold weather, and maintains its sealing properties through thousands of pressure cycles. These O-rings won’t swell up in diesel fuel or crack from hydraulic fluid exposure like cheaper rubber compounds.

Good to Know

Always clean the groove thoroughly before installing a new O-ring—dirt and old rubber bits cause new seals to fail quickly. A light coating of compatible grease or hydraulic fluid helps installation and prevents pinching. Keep O-rings in a cool, dry place away from sunlight and they’ll stay fresh for years.