For 1998 GMC C1500 Courtesy Light Bulb API 83171DHRJ

API ProTune Courtesy Light Bulb fits Chevy C1500 1993-1998 98TYDV

API ProTune Courtesy Light Bulb fits Chevy C1500 1993-1998 77VCGT

API ProTune Courtesy Light Bulb fits GMC C1500 Suburban 1998-1999 74TTRQ

API ProTune Courtesy Light Bulb fits GMC C1500 1985-1986, 1992-1998 91SRRF

For 1985-1986, 1992-1998 GMC C1500 Courtesy Light Bulb API 36862CZYV 1993 1994

API ProTune Courtesy Light Bulb fits GMC Yukon 1998-2006 85JKVR

API ProTune Courtesy Light Bulb fits Chevy C1500 1993-1998 82SNVW