Description
Nothing ruins a productive day like hydraulic fluid dripping all over your shop floor or finding your loader won’t lift after sitting overnight. Most of the time, it’s not a major component failure—it’s a simple O-ring that’s gone hard and brittle. These 4-1/2 inch inside diameter Buna-N O-rings are exactly what you need to stop those frustrating leaks and get your systems sealed up tight.
What You’re Getting
- Ten quality Buna-N rubber O-rings in one package—plenty for the job plus spares
- 70 durometer compound handles hydraulic pressure and temperature swings like a champ
- 3/16 inch cross-section provides excellent sealing in standard groove dimensions
- Oil-resistant material won’t swell or deteriorate when exposed to hydraulic fluid
- Precise 4-1/2 inch inside diameter fits common tractor hydraulic components
Built for Real Farm Work
These O-rings show up in hydraulic cylinders, valve bodies, filter housings, and pump assemblies across all kinds of farm equipment. Whether you’re rebuilding loader cylinders, servicing three-point hydraulics, or repairing power steering components, this size is common enough that you’ll use them. The 4-7/8 inch outside diameter makes them perfect for medium-duty hydraulic applications where standard automotive O-rings just won’t cut it.
Made to Last
Buna-N rubber is the gold standard for hydraulic seals because it handles the punishment that farm equipment dishes out. Temperature swings from winter storage to summer field work won’t make these rings brittle, and they’ll maintain their flexibility even after thousands of pressure cycles.
Good to Know
Keep the groove clean and lightly lubricate the O-ring with hydraulic fluid before installation—it prevents pinching and ensures proper seating. With ten in the pack, you can tackle that repair job and still have spares in your toolbox for the next time. Store them in a cool, dry place away from direct sunlight to keep the rubber in top condition.
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