When your old International Harvester starts running rough or losing power, weak valve springs might be the culprit. These valve springs control how your intake and exhaust valves open and close—and when they start getting tired after years of faithful service, you’ll notice it in how your tractor runs. Fresh springs restore that crisp throttle response and smooth power delivery your engine was built to provide.
What You’re Getting
- Complete set of 8 valve springs for proper valve timing across all cylinders
- TISCO quality construction designed to handle the demands of agricultural work
- Direct replacement springs that restore factory valve control and sealing
- Compatible with engines that don’t use rotocaps for simplified installation
Built for Real Farm Work
These springs fit International Harvester 4-cylinder engines where you need 8 springs total—2 per cylinder for both intake and exhaust valves. Whether you’re running a utility tractor for chores or a field machine for crop work, proper valve springs are essential for maintaining compression, preventing valve float at higher RPMs, and keeping your engine breathing correctly under load.
Made to Last
Farm engines work hard, and valve springs take thousands of cycles every minute your engine runs. These TISCO springs are built to maintain proper tension season after season, handling the heat and stress of agricultural work without losing their temper or breaking down.
Installation Notes
Always replace valve springs as a complete set—mixing old and new springs creates uneven valve timing and can cause running problems. These are designed for engines without rotocaps, so installation is straightforward with standard valve spring tools. Perfect time to check your valve guides and seats while you’ve got things apart.
