Description
When your old Case or International tractor starts having charging problems—dim lights, a dead battery in the morning, or that telltale ammeter bouncing around—it’s often a worn-out voltage regulator that’s to blame. This 6-volt external regulator gets your vintage generator system back to working like it should, controlling the voltage so your battery stays properly charged without getting cooked from overcharging.
What You’re Getting
- External 6-volt positive ground design that mounts outside the generator for easy access and service
- Four terminal flat mount configuration that connects directly to your existing wiring harness
- Works with the original generators found on many Case and IH models from that era
- Can be used with conversion kit VRK 1815 to modernize older Delco cutout systems
Built for Real Farm Work
This regulator fits tractors with 6-volt positive ground electrical systems and works with generators typically found on Case and International Harvester tractors from the 1940s through 1960s. These are the workhorses that are still earning their keep on farms today, whether they’re running a buzz saw, pulling a hay rake, or doing chores around the farmstead.
Made to Last
Vintage tractor electrical systems need parts that can handle the vibration, weather, and years of service that come with farm life. This TISCO-manufactured regulator is built to replace those original units that have finally given up after decades of faithful service. The external mounting makes it easy to check and replace when needed.
Good to Know
Make sure your tractor has a 6-volt positive ground system before installing—this won’t work on 12-volt or negative ground setups. If you’re upgrading from an old Delco cutout system, you’ll want to grab the VRK 1815 conversion kit at the same time to make the changeover complete. Always disconnect the battery before working on electrical components.






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