John Deere 42 Deck Drive Belt for the L100 100 and Sabre/Scotts Series of Lawn Tractors. This drive belt is brand new. It is a good idea to check your idlers and pullies to make sure they are in good operating condition when you install your new belt. If you find that you need an idler you can email or call us and we can take care of that when you purchase the belt. Remember we combine shipping on multiple items so be sure to go to our store and look at the L100 series section to see if we are listing other items you may need. This belt will fit the following tractors with 42 decks on them; L100 L107 L110 L111 102 105 115 125 135 SABRE 14.542GS 1642HS 1742HS 17.542HS SCOTTS L1742 L17.542