Note: This overhaul rebuild kit will fit Briggs & Stratton opposed engines only, WILL NOT FIT INTEK or VANGUARD engines WHICH ARE OVERHEAD VALVE! TWIN OPPOSED CYLINDER MODELS THAT START WITH EITHER 40 OR 42 in the model number, 400400, 400700, 401400, 401700, 402700, 404700, 402400 & 422700.