Looking for aftermarket parts to modify or upgrade your 1990 GMC C3500 with pulleys - crank, underdrive? At Tunersports.com we carry a huge selection of the top name brand performance pulleys - crank, underdrive parts and accessories.

IN STOCK - DROPSHIPS 1603Install a set of BBK performance underdrive pulleys and see an average of 8-15 additional horsepower over the stock pulleys. Under drive pulleys increase engine output by reducing the draw of the engines accessories by slowing them down and reducing the HP they use. Additional and significant perfor... BBK 88-95 GM Truck 4.3 5.0 5.7 Underdrive Pulley Kit - Lightweight CNC Billet Aluminum (3pc) 1988-1993 GMC C3500 Sierra / Sierra SLX 1988-1995 GMC C3500 Sierra SLE $279.99 |

OUT OF STOCK 38019Gates 87-01 Jeep Cherokee 6-Cyl. 4.0L Grooved Belt Drive Pulley 1988-1993 GMC C3500 Sierra / Sierra SLX 1988-1995 GMC C3500 Sierra SLE $53.79 |
OUT OF STOCK 38024Gates 90-95 Chevrolet C & K Series Pickup V-8 5.7L Idler Belt Drive Pulley 1990-1993 GMC C3500 Sierra / Sierra SLX 1990-1995 GMC C3500 Sierra SLE $57.92 |