Description
When you’re elbow-deep in a hydraulic repair or replacing seals on your equipment, there’s nothing worse than discovering you’re one O-ring short of finishing the job. These versatile Buna-N rubber O-rings handle the tough conditions your farm equipment dishes out—from hydraulic cylinders that see thousands of pressure cycles to fuel systems that need reliable sealing year after year.
What You’re Getting
- Ten precision-molded O-rings in the popular 4-3/8″ ID x 4-3/4″ OD size with 3/16″ cross-section
- 70 durometer Buna-N rubber that resists swelling from hydraulic fluid, diesel fuel, and most farm chemicals
- Temperature range from -40°F to +250°F handles everything from winter repairs to hot engine compartments
- Consistent dimensions ensure proper seal compression and long service life
- Bulk 10-pack means you’ve got spares on hand when you need them
Built for Real Farm Work
These O-rings fit countless applications across your operation—hydraulic cylinders on loaders, fuel system connections, air brake fittings, and transmission seals. Whether you’re maintaining a compact utility tractor or overhauling hydraulics on a big row-crop machine, these are the workhorse seals that keep fluids where they belong and contaminants out.
Made to Last
Buna-N rubber is the gold standard for agricultural equipment because it stands up to the abuse farm machinery takes. Despite their simplicity, O-rings face harsh conditions. Heat cycles cause them to harden and lose elasticity. Chemical exposure from fuels and fluids degrades rubber compounds. This quality compound maintains its sealing properties through thousands of pressure cycles and temperature swings.
Good to Know
O-ring success starts with using the right size and material. Clean the groove thoroughly before installation—old seal fragments or debris will cause the new O-ring to leak. A light coating of hydraulic fluid or petroleum jelly makes installation easier and prevents damage. Using worn O-rings during maintenance is false economy – the few cents saved pale compared to cleanup costs and fluid replacement.
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