The Oregon® 509604X Power Mate Rim Sprocket System includes a 3/8" pitch standard 7 spline (SD7) rim sprocket that can be used on all types of chain saws. This sprocket system allows you to extend operational life by maximizing chain and bar groove alignment, all while reducing your overall costs. The sprocket system's two-piece design includes a drum with replaceable rim, allowing the rim to be replaced multiple times before the entire unit needs to be replaced. This sprocket should be replaced every three rims. Many parts look similar, so it’s crucial to ensure you’re choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement.

• For best performance, replace every three rims
• Extend operational life by maximizing chain and bar groove alignment

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov