Shift Shaft O-ring 34-40-0900

This is an authentic manufacturer-approved replacement part which is specially designed for use with Milwaukee rotary hammers. The purpose of this o-ring is to provide an air-tight seal between connected parts, please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Unfortunately, over time the material may wear out and begin to fail eventually requiring a replacement. Keep in mind this high-quality rubber seal is sold individually.