Product Details: Keep your lawn mower running smoothly with the MTD 42 in. High-Lift Lawn Mower Blade Set. These replacement blades are compatible with Troy-Bilt, MTD, Yard-Man, Huskee, Yard Machines and Bolens models. For Troy-Bilt, MTD, Yard-Man, Huskee, Yard Machines and Bolens OE part# 942-04308, 742-04308 https://mtd.convergenceweb.com/Libraries/ItemsReadOnly/ItemMasterInquiry/tabid/8786/Default.aspx?ItemPk=d977ea8e-a83b-458d-8bc1-d8afe83c8c0f#:~:text=Original equipment part for Blades starting with 942-04308, 742-04308, 942-04312 and 742-04312. Refer to the Parts List label under the rider hood or under the zero-turn seat mounting bracket for original equipment parts. The zero-turn seat will need to be pivoted forward for visibility of the Parts List label. Factory tested and approved to provide the perfect fit, strength, durability and performance. Sharp-edged blades cut grass cleanly and make their way through grass more efficiently, reducing overall mowing time and effort. Bagging blades propel more clippings into the bags and leave fewer clippings behind, creating a well-manicured lawn. The higher air flow helps prevent clogging when mowing tall or wet grass. for detailed installation instructions, please refer to your operator's manual.