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 1984 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 1982 1981 Choose your GMC Model C 1984 C1500 Truck Knock Sensor 1984 C2500 Truck Knock Sensor 1984 C3500 Truck Knock Sensor 1984 Caballero Knock Sensor G 1984 G1500 Knock Sensor 1984 G2500 Knock Sensor 1984 G3500 Knock Sensor J 1984 Jimmy Knock Sensor 1984 Jimmy S-15 Knock Sensor K 1984 K1500 Truck Knock Sensor 1984 K2500 Truck Knock Sensor 1984 K3500 Truck Knock Sensor P 1984 P2500 Knock Sensor 1984 P3500 Knock Sensor S 1984 S-15 Pickup Knock Sensor 1984 Suburban C1500 Knock Sensor 1984 Suburban C2500 Knock Sensor 1984 Suburban K1500 Knock Sensor 1984 Suburban K2500 Knock Sensor