Walker Products Ignition Knock Detonation Sensor - 242-1155

Walker Products Ignition Knock Detonation Sensor - 242-1155

SKU: WPR-242-1155

Walker Products

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If provided, we'll verify fitment before your order ships and contact you if the selected part is incompatible. Enter your VIN, then add the product to your cart.

Product details

Part Name Ignition Knock Detonation Sensor
Brand Walker Products
Part Number 242-1155
UPC 00724620165078

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Fitment is guaranteed:

If your vehicle is listed on the fitment table below, the product will fit your car - we guarantee it. All you need to do is to ensure that the vehicle's Year, Make, Model, Trim, and any other notes specified inside the fitment table are respected.

Included warranty:

This product has life-time limited warranty.

Warranty starts from the date of delivery.
Proof of purchase required for all claims.
Covers manufacturing defects only.
Does not cover normal wear & tear.
Does not cover cosmetic damage or rust damage.

To initiate a claim, simply send an email to support@partspioneer.ca. For more information, read our Warranty Policy.

Choose Walker Products because:

Walker Products Ignition Knock (Detonation) Sensors are OE Replacement components that monitor engine vibrations to detect knocking or detonation events. These sensors are a critical part of the engine control system, allowing the ECU to adjust ignition timing in real time to prevent spark knock—a condition that can cause internal engine damage, reduced fuel economy, and drivability issues. Walker Knock Sensors are engineered to match OE specifications for frequency range, sensitivity, and electrical output. Each unit is tuned to detect the specific resonant frequency of knock in a given engine platform, enabling precise spark retard when knock is detected. Built from high-quality, heat- and oil-resistant materials, these sensors are designed to endure the harsh conditions of the engine block and cylinder head. With exact OE fitment, Walker Knock Sensors install directly into the original threaded locations and connect using factory-style electrical terminals. Whether addressing a fault code (e.g., P0325, P0330), correcting timing issues, or replacing a failed sensor, Walker Knock Sensors restore proper knock detection, improve engine safety, and support optimal ignition performance across a wide range of gasoline applications.

Characteristics include:

Exact OE Fit: Installs directly into original mounting locations using factory connectors and threads—no modifications required.
Built for Harsh Environments: Engineered to resist heat, vibration, and oil exposure for long-lasting signal reliability.
Detects Engine Knock: Monitors vibration frequencies to detect detonation and prevent pre-ignition engine damage.
OE Replacement Sensitivity: Calibrated to match factory frequency response and output for seamless ECU integration and spark control.
Restores Ignition Timing Accuracy: Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.

Customer Video Reviews

Watch genuine customer videos showing their upgrades and honest results of similar products

Fitment Table

This product is compatible with these vehicles:

Year	Make	Model	Notes
2015	Audi	R8	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2015	Audi	RS5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4 Color-Brown
2014	Audi	R8	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2014	Audi	RS5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4 Color-Brown
2013	Audi	RS5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4 Color-Brown
2012	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2012	Audi	R8	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2012	Audi	S5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2011	Audi	A6 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2011	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2011	Audi	R8	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2011	Audi	S5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2010	Audi	A6 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2010	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2010	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2010	Audi	R8	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2010	Audi	S5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2009	Audi	A6 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2009	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2009	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2009	Audi	R8	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2009	Audi	S5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2009	Volkswagen	Touareg	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Harness Length 500mm
2008	Audi	A6 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2008	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2008	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2008	Audi	R8	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2008	Audi	RS4	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2008	Audi	S5	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2008	Volkswagen	Touareg	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Harness Length 500mm
2007	Audi	A6 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2007	Audi	A6 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.7,8 Color-Brown Harness Length 500mm
2007	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown Harness Length 500mm
2007	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.7,8 Color-Brown Harness Length 500mm
2007	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke From Chassis/VIN 4L-7-015 001 For Cyl.3,4,7,8 Color-Brown
2007	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke From Chassis/VIN 4L-7-015 001 For Cyl.3,4 Color-Brown
2007	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke From Chassis/VIN 4L-7-015 001 For Cyl.7,8 Color-Brown
2007	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke To Chassis/VIN 4L-7-015 000 For Cyl.3,4 Color-Brown
2007	Audi	Q7	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke To Chassis/VIN 4L-7-015 000 For Cyl.7,8 Color-Brown
2007	Audi	RS4	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.3,4,7,8 Color-Brown
2007	Audi	RS4	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke For Cyl.7,8 Color-Brown
2007	Volkswagen	Touareg	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Harness Length 500mm
2006	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Color-Brown Harness Length 500mm
2006	Volkswagen	Phaeton	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Color-Brown Harness Length 500mm
2005	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Color-Brown Harness Length 500mm
2005	Volkswagen	Phaeton	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Color-Brown Harness Length 500mm
2004	Audi	A8 Quattro	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Color-Brown Harness Length 500mm
2004	Volkswagen	Phaeton	4.2L V engine 8 cylinders 3.33" bore 3.65" stroke Color-Brown Harness Length 500mm

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