The R1 Concepts drilled black brake rotor for 1974–1980 Mercury Bobcat (front left) defines the part and the wheel location in shopper-facing language. Noted as drilled and finished in black, the description ties the rotor to the listed years and model. This rotor provides the specified front-left braking surface for those Bobcat applications, making fitment clear for replacement on the stated vehicles.

R1 74-80 Mercury Bobcat Front Left Drilled Black Brake Rotor