Upgrade your Stihl chainsaw with the Stihl Filler Cap for Stihl 088, 066 (OEM 0000 350 0509). This genuine Stihl replacement cap is made for use on chainsaw fuel or chain oil tanks, featuring a secure screw-type closure to help prevent leaks and contamination during operation and transport. Built from tough, chemical-resistant materials, it�s designed to match the original fit and function for reliable sealing in demanding jobsite conditions. Ideal as a direct replacement for a worn, cracked, or lost cap, it supports proper maintenance and consistent performance on models including the Stihl 088 and Stihl 066. OEM: 0000 350 0509.