Description
Ever found the perfect implement at a farm auction only to get home and discover the PTO shaft doesn’t match your tractor? Or maybe you’ve got a trusty older piece of equipment that’s sized for a smaller PTO but works perfectly otherwise. This splined reducer solves those frustrating compatibility issues by stepping down from your tractor’s 1-3/8 inch PTO to the smaller 1-1/8 inch size needed by many older implements.
What You’re Getting
- Universal forged construction that handles up to 75 PTO horsepower without slipping or breaking under load
- Six-spline design on both ends ensures full contact and maximum power transfer to your implement
- Extends PTO by 2-13/16 inches, giving you extra clearance for tight-fitting implements
- Direct splined connection – no set screws to work loose or wear points to maintain
Built for Real Farm Work
This reducer is perfect for running smaller implements like older finish mowers, rotary cutters, post hole diggers, or small tillers on tractors with the larger 1-3/8 inch PTO shaft. Many compact and mid-size tractors came with the bigger PTO, but plenty of useful implements were built for the smaller size. This adapter bridges that gap so you can use equipment that’s perfectly good but just doesn’t quite match.
Made to Last
PTO adapters must handle tremendous torque loads, and this forged steel construction is built to do exactly that. The heat-treated alloy steel with rust preventative finish stands up to the vibration, weather, and hard use that comes with farm work. The splined connection eliminates the play and wear you get with slip-on adapters.
Installation Notes
Clean your tractor’s PTO shaft thoroughly before installation – any buildup prevents proper seating. The splined connection slides right on and locks in place. Always make sure your implement’s PTO shield covers the adapter completely during operation. A good tip: keep track of the extra length this adds to your setup to avoid U-joint damage when making tight turns.






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