Abstract: An attachment is disclosed for mounting to the front end of a road construction vehicle having a four bar linkage and an hydraulic actuator. A scarifier attachment includes first and second moldboards arranged in a chevron shape, when viewed from above, with the bottom of the V being in the center and forward most position so that the moldboards are inclined outwardly and rearwardly relative to the centerline of the vehicle. At the bottom of each of the moldboards is a scarifier plate which is removably mounted to its associated moldboard. Reinforcing structure is added to the moldboards for strength. In one embodiment, the reinforcing structure forms a receptacle for receiving a conventional scarifier mount, and in a second embodiment, the attachment is mounted to upper and lower horizontal bars forming an integral part of the hydraulically-actuated linkage.