Home/Shop by Part/Engine & Engine Management/Engine Sensors & Electrical/Knock Sensor Narrow The Number Of Models Shown By Telling Us The Year Filter Models by Year 1991 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 Choose your Chevrolet Model A 1991 Astro Knock Sensor B 1991 Beretta Knock Sensor 1991 Blazer Knock Sensor 1991 Blazer S10 Knock Sensor C 1991 C1500 Truck Knock Sensor 1991 C2500 Truck Knock Sensor 1991 C3500 Truck Knock Sensor 1991 C3500HD Knock Sensor 1991 Camaro Knock Sensor 1991 Caprice Knock Sensor 1991 Cavalier Knock Sensor 1991 Corsica Knock Sensor 1991 Corvette Knock Sensor G 1991 G10 Knock Sensor 1991 G20 Knock Sensor 1991 G30 Knock Sensor K 1991 K1500 Truck Knock Sensor 1991 K2500 Truck Knock Sensor 1991 K3500 Truck Knock Sensor L 1991 Lumina Knock Sensor 1991 Lumina APV Knock Sensor P 1991 P30 Knock Sensor R 1991 R3500 Truck Knock Sensor S 1991 S10 Pickup Knock Sensor 1991 Suburban R1500 Knock Sensor 1991 Suburban R2500 Knock Sensor 1991 Suburban V1500 Knock Sensor 1991 Suburban V2500 Knock Sensor V 1991 V3500 Truck Knock Sensor