How to Buy Exercise Equipment Replacement Parts: Locate your Model Name & Model (Icon)/ Serial (All Other Manufacturers) Number. Then find the information in product description. For Serial Numbers the first 2-5 characters will suffice. Please check compatibility options in description.. If you are uncomfortable with diagnosing and treating your machine with the RIGHT replacement parts we can recommend a fitness technician in your area via zip code. Part#: 003-5872 & 003-5871.