The knock sensor is a direct replacement for select 1999-2009 Chevy, Oldsmobile, Pontiac and Saturn applications. It detects the vibration frequencies of engine detonation so the engine computer can retard ignition timing.

Walker Products 242-1014 Knock Sensor Features:

• Fits 1999-2005 Chevy Cavalier, Pontiac Grand Am, Sunfire; 1999-2009 Chevy Malibu; 2004-2005 Chevy Classic; 2005-2008 Chevy Cobalt
• Fits 2006-2008 Chevy HHR, Pontiac G6, Solstice; 1999-2004 Oldsmobile Alero; 2007-2008 Pontiac G5, Saturn Aura, Sky; 2000 Saturn LS, LS1, LW1; 2001-2002 Saturn L100
• Also fits select Chevy, Oldsmobile, Pontiac and Saturn applications
• Female rectangle electrical connector with 1 blade terminal
• 383 mm (15.1 in.) overall length
• 255 mm (10 in.) wiring harness
• Includes wiring harness
• Mounting hardware not included