The ZYWUOY Oil Worm Gear Kit is designed specifically for 61, 66, 266, 268, and 272 chainsaw models, making it an ideal replacement for those in need. This kit includes all the necessary parts to ensure maintenance and longevity of your chainsaw's oil system. The clutch cover, bearing, gasket, hose, and filter work together to provide efficient lubrication and cooling, reducing wear and tear on critical components. By investing in this high-quality kit, you demonstrate your commitment to the efficient operation and longevity of your chainsaw.