Walker Products Ignition Knock Detonation Sensor - 242-1052

Walker Products Ignition Knock Detonation Sensor - 242-1052

SKU: WPR-242-1052

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Product details

Part Name Ignition Knock Detonation Sensor
Brand Walker Products
Part Number 242-1052
UPC 00724620077029

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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:

For warranty coverage information, please see our Warranty Policy.

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:

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

Customer Video Reviews

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Fitment Table

This product is compatible with these vehicles:

Year	Make	Model	Notes
2011	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2010	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2010	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2010	Ford	Mustang	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2010	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2010	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2009	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2009	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2009	Ford	Mustang	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2009	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2009	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2009	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2008	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2008	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2008	Ford	Mustang	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2008	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2008	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2008	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2007	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2007	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2007	Ford	Mustang	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2007	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2007	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2007	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2006	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2006	Ford	Mustang	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2006	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2006	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2006	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2005	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2005	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2005	Ford	Mustang	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2005	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2005	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2005	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2004	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2004	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2004	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2004	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2004	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2003	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2003	Ford	Explorer Sport	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2003	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2003	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2003	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2003	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2002	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2002	Ford	Explorer Sport	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2002	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2002	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2002	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2002	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2001	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2001	Ford	Explorer Sport	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2001	Ford	Explorer Sport Trac	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2001	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2001	Mazda	B4000	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2001	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2000	Ford	E-150 Econoline	4.2L V engine 6 cylinders 3.81" bore 3.74" stroke
2000	Ford	E-150 Econoline Club Wagon	4.2L V engine 6 cylinders 3.81" bore 3.74" stroke
2000	Ford	E-250 Econoline	4.2L V engine 6 cylinders 3.81" bore 3.74" stroke
2000	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke Engine VIN code E
2000	Ford	Ranger	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
2000	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke
1999	Ford	E-150 Econoline	4.2L V engine 6 cylinders 3.81" bore 3.74" stroke
1999	Ford	E-150 Econoline Club Wagon	4.2L V engine 6 cylinders 3.81" bore 3.74" stroke
1999	Ford	E-250 Econoline	4.2L V engine 6 cylinders 3.81" bore 3.74" stroke
1999	Ford	Explorer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke Engine VIN code E
1999	Mercury	Mountaineer	4.0L V engine 6 cylinders 3.95" bore 3.32" stroke

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