Replaces AUC11063, BG20815, BG20706, BG20439, BG20372, BG20942. The Edge Cutting System has been trademarked to emphasize the advantages of the John Deere mower deck designs. They give superior convenience, performance, and reliability: Deep-deck mower design lifts grass for a clean, even cut. Smooth underside of mower prevents grass buildup and evenly disperses grass clippings. The rolled outer edge of the deck provides extra strength and protection. Dual-stage E-coat and powder paint coatings provide extra protection from rust. Mower deck is a three-spindle design with heavy-duty characteristics. Four mower wheels are standard equipment for a smooth mowing job, even in rolling terrain. Flexible discharge chute minimizes property and mower deck damage. No tools are required to go from mulching (with mulch cover) to side discharge to rear bagging. Mulch cover is an optional attachment. A high-performance mulching blade (GX21786) is available to enhance mulching performance. The mower deck has a rolled lip to provide greater strength and protection. The rugged 12-gauge 0.105-in. 2.7-mm steel mower will provide years of dependable mowing. The blade-to-spindle design provides a unique mounting system for the mower blade that gives extra safety and convenience. A wash port is provided to make cleaning the underside of the mower deck easy. A hose connector is included with mower deck. The StarLock blade design keeps the blade bolt at the correct torque for easy removal. Optional blades for difficult mulching or bagging conditions are available. Please message us with your model and serial number if you have any questions, and we will be happy to help! We reserve the right to cancel the sale of any item to any person/business that is NOT the end user of this product. Warning: Cancer and Reproductive Harm – Visit.