FITMENT - 1996-1999 for GMC K1500 5L,1997-1998 for GMC K1500 6.5L,1996-1999 for GMC K1500 Suburban 5.7L,1999 for GMC K1500 Suburban 6.5L,1996-2000 for GMC K2500 5.7L,1996-2000 for GMC K2500 7.4L,1996-1999 for GMC K2500 Suburban 5.7L,1999 for GMC K2500 Suburban 6.5L,1996-1999 for GMC K2500 Suburban 7.4L,1996-2000 for GMC K3500 5.7L,1996-2000 for GMC K3500 7.4L,1996-1999 for GMC P3500 4.3L,1996-1999 for GMC P3500 5.7L,1996-1999 for GMC Yukon 5.7L,1997 for GMC Yukon 6.5L. EASY to INSTALL and CLEAN - Disconnect the negative side of the battery, then loosen a couple band clamps and disconnect the harness. Pull out your old unit and re-insert new one, tighten band clamps, re-connect harness and negative battery terminal. HOW to WORK - Mass Air Flow Meter AFM Sensor measures the volume and density of air entering the engine, providing highly accurate Air Flow readings to the ECU over a wide range of ambient temperatures..
