PrecMower Belt Dimensions: This mower belt has an outer circumference of 2082mm, an inner circumference of 2032mm and a width of 13mm. OE Replacement Parts: This mower belt replaces OEM parts 535411901, 531006096 and 594978001. Broad Compatibility: Designed to be compatible with Husqvarna including Rider R316T, 155 AWD, 15V2, 16, 16H, 175, 175 AWD, Pro 15, Pro 18 AWD, Pro 18, 320 AWD, PR 18 AWD and Proflex 18/21. Essential Mower Belt: This belt is specifically designed for the center center pulley for deck replacement on mowers. Natural Rubber Material: Made of natural rubber, this belt is highly resistant to cracking and deformation. The durable construction ensures long-lasting performance, high efficiency and reliability when cutting grass.