3SX Stock Size Aluminum Crank Pulley 1992-1999 3000GT DOHC 4-groove+6-groove Fits 1992-1999 DOHC Mitsubishi 3000GT with 4-groove serpentine belt for power steering pump Weighs only 1.7 pounds versus stock pulley that weighs 6.7 pounds Direct replacement for stock crank pulley and uses the factory original sized belts