The R1 Concepts Geo-Carbon drilled and slotted rotor is a direct-fit rear left replacement for 2006–2012 Workhorse W42 applications. Featuring drilled holes and machined slots, this rotor offers a managed braking surface intended to support steady pad contact and assist in moving debris away from the pad interface, making it a replacement choice for commercial or heavy-use vehicles needing a durable rotor option.
R1 06-12 Workhorse W42 (9 Rear Left Drilled & Slotted Geo-Carbon Rotor