When you’re hauling a loaded manure spreader down a hill or backing up to the feed bunk with a heavy mixer, the last thing you want is brake problems. A worn brake O-ring might seem like a small thing, but it can turn into a big safety issue fast. Brake fluid dripping from worn O-rings is more than an annoyance – it’s a safety hazard that gets worse with every use. This small brake O-ring keeps your Case IH tractor’s hydraulic brake system sealed up tight so you can stop when you need to.
What You’re Getting
- Small size specification at 8 1/4″ diameter with 1/8″ cross section for precise fit
- Pack of 2 O-rings sold at per-unit pricing – perfect for replacing both sides at once
- Special compounds that resist swelling from brake fluid absorption while maintaining the flexibility needed for proper sealing
- Material stays stable across temperature extremes, from cold morning starts to hot brake conditions
- Direct replacement that fits without modifications or special tools
Built for Real Farm Work
This O-ring is designed for Case IH tractors across their general purpose lineup. Whether you’re running a smaller utility tractor for chores around the farmyard or a bigger machine for field work, reliable brakes keep you safe when you’re moving heavy implements, working on slopes, or traveling between fields on public roads.
Made to Last
Brake system O-rings face unique challenges – exposure to hygroscopic brake fluid, high pressure during brake application, and heat from heavy braking. This O-ring is built to handle all of that plus the vibration, temperature swings, and tough conditions that come with farm work.
Installation Notes
Watch for early warning signs: brake fluid on wheels or axles, dropping fluid levels, or that spongy brake pedal feel. Common O-ring failure points include wheel cylinders, brake valve connections, and master cylinder fittings. During installation, clean all mating surfaces thoroughly – old fluid residue can cause premature failure. Apply fresh brake fluid to the O-ring for easier installation and initial lubrication. Since you get two O-rings, it’s smart to replace both sides at the same time.








