This authentic replacement item is a user's repair manual for Briggs & Stratton appliance engines. Whenever an operator has a problem with their appliance's engine, it's standard that they check the user's manual. It includes step-by-step directions for how to diagnose and then repair faulty parts. Many appliances use the same type of engine, so this manual is compatible with a wide variety of Briggs & Stratton products. It can also be used with some Toro and Lawn Boy engines as well. This product is sourced from the original manufacturer and ships individually. Any parts needed to make the repairs included in this manual will have to be purchased separately.