Description

If you’re converting that old Ford NAA or 8N from 6-volt to 12-volt, you know the devil’s in the details—and the right pulley makes all the difference. This single groove pulley is sized perfectly for TISCO alternator conversion kits and gives you the proper belt alignment you need for reliable charging. No more jury-rigging pulleys that don’t quite fit or wondering if your charging system will hold up when you’re working long days.

What You’re Getting

Single groove design with 5/8-inch width for proper V-belt fit
2-1/4 inch diameter provides correct alternator speed for optimal charging
Works specifically with TISCO conversion kits and 8NE10305SE alternator
Direct replacement—no modifications or adapters needed

Built for Conversion Projects

This pulley is designed for Ford and New Holland tractors that are getting the alternator upgrade treatment. Whether you’re restoring an old NAA Jubilee or updating an 8N for modern electrical demands, this pulley ensures your new alternator spins at the right speed to keep your battery charged and your lights bright.

Made to Last

Farm equipment pulleys take a beating from belt tension, engine vibration, and weather exposure. This one’s built with quality materials that can handle the constant duty cycle of a working tractor. The precise machining ensures smooth operation and proper belt tracking so you won’t have charging problems down the road.

Good to Know

Installation is straightforward if you’re already doing the alternator conversion—just press or thread it onto your new alternator shaft depending on the specific unit. Check your belt alignment after installation and make sure you’ve got proper tension. Too loose and you’ll get slippage; too tight and you’ll wear out bearings.