Genuine Ariens Part 52609100 - Quick Turn Update Kit. 

Will fit the following snowblower models: 921002, 921003, 921004, 921006, 921007, 921008, 921009, 926001, 926002, 926003, 926004, 926005, 926006, 926007, 926008, 926009, 926010, 926011, 926012, 926013, 926014, 926015, 926016, 926017, 926021, 926022, 926023, 926024, 926025, 926026, 926027, 926041, 926043, 926101, 926102, 926103, 926500, 926501, 926504, 926505, 926508