【REPLACES】918-04608a Spindle Assembly Replaces MTD 918-0671B, 918-0671, 918-04608A, 618-0671, 618-04608A, 618-0671B, 618-04608, 618-0671D, 918-0671D. 【IDLER PULLEY】756-04129 Idler Pulley Replaces MTD/Troy-Bilt/Cub Cadet 753-08068, 753-08068A, 753-08171, 756-04129, 75604129B, 756-04129B, 756-04129C, YS-756-04129.Specification: Height 1", OD 4.84", ID 0.4". 【GREASED SPINDLE】The Spindle Assembly Kit has been Greased to Lubricate the Shaft, Sleeve and Main Shaft Housing to Make it Run Smoothly. 【DOUBLE SEALD SPINDLE BEARINGS】The Bearings on Spindle Assembly are Double Sealed and Pre-Grease before leaving factory. 【HIGH QUALITY】Our spindles are crafted from high-quality aluminum alloy and feature durable steel grease zerks and strong, Grade 5 compliant screws. Through precise CNC machining, we ensure smooth, burr-free threads that allow for easy and secure assembly of bolts and nuts. 【FITMENT】Fits for MTD Lawn Mowers: 17AF2ACK004, 17AF2ACK099, 17AF2ACK897, 17BK2ACK, 17BK2ACK090; Fits for Troy-Bilt Lawn Mowers: 17WF2ACP011, 17WF2ACP211; Fits for Craftsman Lawn Mowers: 247250610; Fits for Cub Cadet Lawn Mowers: 17AI2ACK010, 17AI2ACK709, 17AI2ACK710, 17WF2ACK010, 17WI2ACK010, 17WI2ACK056, 17YI2ACK010; Fits for Yard Man Lawn Mowers: 17AF2ACK004. 【GREASED SPINDLE】The Spindle Assembly Kit has been Greased to Lubricate the Shaft, Sleeve and Main Shaft Housing to Make it Run Smoothly. 【DOUBLE SEALD SPINDLE BEARINGS】The Bearings on Spindle Assembly are Double Sealed and Pre-Grease before leaving factory. 【HIGH QUALITY】Our spindles are crafted from high-quality aluminum alloy and feature durable steel grease zerks and strong, Grade 5 compliant screws. Through precise CNC machining, we ensure smooth, burr-free threads that allow for easy and secure assembly of bolts and nuts. 【EASY INSTALLATION】This Assembly Tool kit makes your installation easy and convenient, includes 2x 14mm L Shaped Angled Hex Socket Wrench+1x 13mm Socket Wrench Screwdriver+1x 22x24mm Forged Double Head Open End Spanner+1x Anti-slip Cotton Knit Safety Work Gloves