The MTD 954-05012A Lawn Tractor Deck Belt helps transfer engine power to the mower deck for consistent blade operation. This replacement belt connects compatible pulleys and moves as the engine runs, transmitting rotational force through the deck drive system. Its design supports proper belt engagement and helps maintain smooth power delivery to the cutting components during mowing. R... https://www.wholetoolbox.com/mtd-954-05012a-lawn-tractor-belt-deck-a-sec-137/954-05012A.html