AM133924 Double Deck Drive Belt Tightener Pulley for John Deere 48″ and 54″ Deck. Enhance Your Mowing Experience. Upgrade your John Deere LX series or GX series lawn mower (LX280, LX288, LX289, GX255, GX325, GX345, GX355) with this AM133924 Double Deck Drive Belt Tightener Pulley. Designed to fit both 48-inch and 54-inch decks, it ensures compatibility and smooth operation. This pulley is a suitable replacement for multiple part numbers, including AM133924, AM127594, and AM125668. Easily install it to restore your mower’s optimal functionality. Renew the performance of your mower’s deck by replacing worn-out dual pulleys with the AM133924. Maintain safe and consistent blade rotation for efficient mowing that keeps your lawn looking its best. Crafted from premium materials, the AM133924 Double Deck Drive Belt Tightener Pulley guarantees robustness and longevity. Its high-quality construction ensures dependable performance over extended periods of use. 1 x AM133924 Double Deck Drive Belt Tightener Pulley. Absolutely Fast and Safe! We will always here to solve them for you. It is important that we know when your return is expected. We need this in case there are any issues during transit. Any question, please let me know. We try our best to reply to your emails as soon as possible. Please allow 24 hours for us to response. Your understanding and patience is much appreciated! Good communication is helpful for both of us to resolve any problems and issues. Your kind support will be highly appreciated by us and keep us moving forward.