Ignition Knock (Detonation) Sensors detect engine block vibrations caused from engine knock and send signals to the computer to retard ignition timing.

Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001/IATF16949 certified company, we are committed to supplying the highest quality products. -¬ 2023 Walker Products Inc. All rights reserved.

• Effective Engine Protection: Our premium Knock Sensors provide accurate detection of engine knocking, safeguarding your engine against potential damage.
• Durable Build: Crafted with high-quality materials, these sensors are built to endure harsh conditions, ensuring long-lasting performance and reducing the frequency of replacements.
• Effortless Installation: Designed for easy and straightforward installation, these sensors minimize vehicle downtime during replacement, keeping your vehicle on the road.
• Engineered for OE Performance: These sensors are meticulously engineered and rigorously tested to meet and exceed OE performance and durability standards, ensuring reliable detection and response to engine knocking.
• Precise monitoring for knocking events, these sensors help optimize the engine's timing and combustion, promoting better fuel efficiency and reducing the risk of costly repairs, all while maintaining optimal engine performance.

CA_Prop65_Lead:	WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. www.p65warnings.ca.gov
Connector Gender:	Female
Connector Quantity:	1
Connector Shape:	Rectangle
Mounting Hardware Included:	No
Terminal Gender:	Male
Terminal Quantity:	2
Terminal Type:	Blade
Wiring Harness Included:	No

• Airtex: 5S2166
• ACDelco: 213-924
• BWD: S8697
• General Motors: 21024981
• Forecast: KS62
• ACDelco: 21024981
• Wells: SU1333
• SMP: KS115
• General Motors: 21024729

• 2000-2002 Cadillac DeVille
• 2000-2002 Cadillac Seville
• 2000-2002 Saturn SL1
• 2001-2005 Chevrolet Express 2500
• 2001-2004 Chevrolet Silverado 1500
• 2001-2004 GMC Safari
• 2001-2005 GMC Savana 2500
• 2001-2002 GMC Savana 3500
• 2002-2004 Chevrolet S10
• 2005 Chevrolet Astro | Note: Stamped #21024981
• 2005 Chevrolet Blazer | Note: Stamped #21024981
• 2005 GMC Safari | Note: Stamped #21024981
• 2000-2002 Cadillac Eldorado
• 2000-2002 Saturn SC1
• 2000-2002 Saturn SL
• 2001-2004 Chevrolet Astro
• 2001-2005 Chevrolet Express 1500
• 2001-2005 GMC Savana 1500
• 2001-2004 GMC Sierra 1500
• 2001-2002 Oldsmobile Aurora
• 2002-2004 Chevrolet Blazer
• 2002-2004 GMC Sonoma