StopTech Sport Slotted Brake Rotors are 1-piece direct replacement brake discs for factory brake systems and stock calipers. The Power Slotting helps evacuate heat and brake dust, sheds water, and prevents pad glazing. This specific model (126.65153SL) is designed for the Rear Left position. Key features include: finished with a black e-coating for corrosion protection and high-grade Metallurgy to prevent cracking. This item is a single rotor (1 unit). For a complete axle set, it is recommended to pair with the Right Side rotor (126.65153SR) and matching Sport Pads (309 series). Compatible with 2018+ Ford F-150 models equipped with manual or electronic parking brakes.