This Hayden Drive Belt Idler Pulley fits your 1987 GMC R1500 and is perfect for a tune up or performance upgrade. .
Hayden Drive Belt Idler Pulley for 1985-1987 Oldsmobile Calais - Engine hq
Hayden Drive Belt Idler Pulley for 1991-2004 Ford Grand Marquis - Engine gw
Hayden Drive Belt Idler Assembly for 1975-1986 Ford E-250 Econoline - Belts ki
Hayden Drive Belt Idler Pulley for 1990-2005 GMC Safari - Engine Bearing ah
Hayden Drive Belt Idler Assembly for 1970-1972 Ford F-350 - Belts Cooling ph
Hayden Drive Belt Idler Pulley for 1997-2007 Pontiac Grand Prix 3.8L V6 - da
