ACDelco GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM-recommended replacements for your vehicle's original components. These sensors create a voltage signal based on the vibrations caused by erratic air/fuel mixture combustion; the engine control module uses these signals to adjust the ignition timing and air/fuel mixture. These original equipment ignition knock sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

• Sends signals to the engine control module (ECM) to adjust timing
• Helps prevent damage to the engine caused by pre-ignition
• GM-recommended replacement part for your GM vehicle's original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

Connector Gender:	Female
Connector Quantity:	1
Connector Shape:	Round
Height (in):	1.6
Length:	2.9
Length:	60.71
Meets or Exceeds Original Equipment Manufacture Specifications:	Yes
Mounting Hardware Included:	No
Programming Required:	No
Terminal Quantity:	1
Terminal Type:	Pin
Threaded End Diameter:	0.25
Threaded End Diameter:	6.35
Weight (lb):	0.22
Width (in):	2
Wire Harness Included:	No

• 1998-1999 Chevrolet P30
• 2001-2002 Chevrolet Express 3500
• 2001-2006 Chevrolet Silverado 2500 HD
• 2001-2006 Chevrolet Silverado 3500
• 2001-2006 Chevrolet Suburban 2500
• 2001-2002 GMC Savana 3500
• 2001-2006 GMC Sierra 2500 HD
• 2001-2006 GMC Sierra 3500
• 2001-2006 GMC Yukon XL 2500
• 2002-2006 Chevrolet Avalanche 2500
• 2007 Chevrolet Silverado 2500 HD Classic
• 2007 Chevrolet Silverado 3500 Classic
• 2007 GMC Sierra 2500 HD Classic
• 2007 GMC Sierra 3500 Classic