Replacement Gear and Sprocket Kit for Chamberlain, Sears, Craftsman 1/3 and 1/2 HP Chain Drive Models Compatible with Liftmaster 41c4220a Garage Door Opener Parts

Why This Gear Kit Outperforms the Rest 15-Minute Fix, Even for Beginners Pre-assembled shaft skips complex disassembly – 3 simple steps with our visual guide (no pro tools needed). Silent & Stronger Than Original Parts Industrial-grade steel gears tested for 50,000+ cycles (2X industry average). Precision-balanced sprockets reduce 60% noise vs. plastic competitors. Guaranteed Fit for 1984-2024 Models Works with 1/3 & 1/2 HP chain drive openers, including systems compatible with major brands*. Not an OEM part. Check model compatibility via our size chart (link in manual). Everything Included – No Hidden Costs Full kit: Gears, bearings, grease, manual, AND bonus hex wrench. Your Safety & Satisfaction Come First Tested for Extreme Conditions: -22°F to 284°F | Salt-spray resistant Pro Tip: Apply included grease every 1 years to extend gear life by 5+ years. Package Includes Gear & Sprocket Assembly ×1 Worm Gear ×1 High-Temp Grease (10ml) ×1 Motor Shaft Bearings ×2 Magnetic Tool Tray ×1 Step-by-Step Manual ×1 Need a Reliable Garage? Start Here. Click “Add to Cart” now – your future self will thank you when winter storms hit!