The Ariens Company 21547188 Lawn Tractor V-Belt Mower 42" helps deliver reliable power transfer for compatible lawn tractor mower decks. It works by transferring engine power to the mower deck components, supporting smooth blade operation and consistent cutting performance. Made to replace a worn, stretched, or damaged mower belt, it helps improve cutting efficiency, reduce slippage, ... https://www.wholetoolbox.com/ariens-company-21547188-lawn-tractor-v-belt-mower-42/21547188.html