StairMaster 4000PT Upright Stepper Alternator Generator (GP107) Best for Runners By opting for a pre-owned

By opting for a pre-owned part

A functioning control board is crucial for a safe and effective workout experience

Own a piece of proven engineering that keeps your workouts on track

Choosing a pre-owned Horizon Fitness OEM part is a smart and sustainable decision

This approach extends the life of your investment

StairMaster 4000PT Upright Stepper Alternator Generator (GP107) Best for Runners By opting for a pre-ownedEach part has been carefully inspected by our skilled technicians to ensure optimal performance and safety. Please note that pictures are for reference only, we carry multiple stock therefore some parts may look slightly different. (It will always be the exact model and part itself). By opting for used fitness parts, you not only save on costs but also contribute to reducing waste and environmental impact. We're proud to support the principles of