Description
If you’ve got an International Harvester tractor with power disc brakes that’s getting spongy or not stopping like it should, worn seals in the brake piston housing are likely the culprit. This complete seal kit gives you everything you need to rebuild those brake calipers and get your stopping power back where it belongs—no more pumping the pedal or worrying about brake failure when you need it most.
What You’re Getting
- Complete set of all four seals needed for proper brake piston operation
- Includes lip seal, outer piston ring seal, inner piston ring seal, and brake housing seal ring
- Quality TISCO construction that stands up to hydraulic pressure and brake heat
- Direct replacement for IH part 406726R91—fits like the original
Built for Real Farm Work
This seal kit fits a wide range of International Harvester tractors including the popular Hydro 100 and the reliable 6-digit series like the 706, 766, 826, 856, 1066, 1206, 1256, and 1466, plus their industrial counterparts. Whether you’re using your tractor for heavy fieldwork, loader operations, or highway transport, reliable brakes are essential for safe operation.
Made to Last
Power disc brakes see a lot of action on farm tractors, dealing with hydraulic pressure, brake fluid, and the heat generated from stopping heavy loads. These seals are built to handle those conditions and maintain proper sealing over thousands of brake applications, keeping your brake system leak-free and responsive.
Installation Notes
Rebuilding brake calipers requires removing the pistons and cleaning all surfaces thoroughly before installing new seals. Make sure to bleed the brake system completely after reassembly and test brake operation before putting the tractor back to work. If you’re not comfortable with brake work, this is a job best left to an experienced mechanic.





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