【107713-01 Sprocket Gear】 Electric Chainsaw Inner gear Size: (Dia.)*(H) 8.9*3.5cm / 3.5*1.4inch (Approx.) . Includes 55 internal teeth, 5 teeth metal chain drive. Please measure the size of your Sprocket Gear before purchasing or check the product size in the second picture to ensure it is suitable. 【Sprocket Gear】 Electric Chainsaw replacement gear compatible with Remington / MTD Chainsaw / Polesaw ,Replace part : 107713-01, 717-04749, 717 04749, 71704749, 075752, 75752 etc. 【Remington Sprocket Gear】 107713-01 and 075752 are both 3 1/2" Diameter sprocket gears, the 075752 is the old Desa part number that the 107713-01 Desa sprocket gear has replaced. The 107713-01 Sprocket gear was one of the most popular sprockets used on the Remington Chainsaw and Remington Pole Saws. Replacement Sprocket Gear assembly for many of the Desa Chainsaws and Polesaws. 【Outstanding Quality】 Made of high quality ABS material, sturdy and durable.All finishes are non-toxic, safe and eco-friendly.Easy to install and use. 【After-Sales Guarantee】 If you are not satisfied with the product, we will provide you with a 30-day return and exchange warranty, Pls contact us first when you get some problem, we will offer you assistance asap.