This poly-V pulley retrofit kit is designed for use on Bosch brand alternators for Stairmaster steppers.
It includes both the alternator and transmission pulleys, along with a new belt, for a complete replacement setup.
Browse more replacement components in our Other Replacement Parts category, or compare related fitness parts like the Chain Idler Pulley, Concept 2.
This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.