Replaces Part Number: 12569240, 1580380, 16017460, 16137039, 16158055, 17112715, 2131545, 2251001, 33000153, 33000273, 8125692400, 8160174600, 81613-70390, 8161370390, 89330-00153, 8933000153. Fitment: for 1985-2004 Chevy Impala, for 1988-1998 Chevy Silverado K1500, for 1984-2003 Buick Century, for 1992-1997 GMC Yukon, for 1987-1995 Jeep Wrangler, for 1999-2003 Oldsmobile Alero - most for GM vehicles. How it work: Replacement map sensors the changes in the intake manifold or vacuum pressure during various engine operating loads and sends a corresponding signal to the ECU. Also safe your time and money, just need to change the old one to the new one.. Package Included: 1 Pack Manifold Absolute Pressure Sensors.
