The replacement knock sensor is made for select 1997-2005 Cadillac and Saturn applications. It detects the vibration frequencies of engine detonation so the engine computer can retard ignition timing.

Walker Products 242-1071 Knock Sensor Features:

• Fits 1997-2001 Cadillac Catera; 2003-2004 Cadillac CTS; 2000 Saturn LS2, LW2; 2001-2005 Saturn L300; 2001-2003 Saturn LW300; 2002-2003 Saturn Vue
• Engine coverage includes 3.0L V6, 3.2L V6 applications
• Female rectangle electrical connector with 2 blade terminals
• 44.28 mm (1.7 in.) overall length
• 546 mm (21.5 in.) wiring harness
• Includes wiring harness
• Mounting hardware not included