Used True Fitness TZ5 450HRC 550HRC Treadmill 115V DC Drive Motor Assembly L5D011Item Condition: Used Item Tested, 30 day Guarantee, picture is for reference only. Volts: 115 AMPS: 20 Used on the following models: True Fitness 450HRC 500 AOP 500 Series 500ZT 500A HRCO 95 97 500Z 540ZT 550CI 550HRC 550P Z5 ZTX 550 120V & 220V 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