Ignition Knock (Detonation) Sensor

Part Number 242-1028 (117547765)

UPC: 724620071614

Package contents: 1 Each per Box

Select vehicle for guaranteed fit

Color

$13.74

In stockShips by 6th Nov

Description

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.

Fitment

This part fits the following vehicles.

Audi

2006-2009 A3 Quattro
2016-2018 A3 Sportback e-tron
2005-2009 A4
2005-2009 A4 Quattro
2019 A6 Quattro
2012-2018 A8 Quattro
2007-2010 Q7
2018-2019 RS5
2019 RS5 Sportback
2014-2018 RS7
2018-2019 S4
2018-2020 S5
2018-2020 S5 Sportback
2013-2018 S6
2013-2018 S7
2013-2018 S8
2018-2019 SQ5
2001-2006 TT
2001-2006, 2008-2009 TT Quattro

Porsche

2004-2006, 2008-2014, 2016-2021 Cayenne
2019-2021 Macan
2017-2021 Panamera

Seat

2001-2005, 2007, 2009, 2011-2016 Ibiza

Volkswagen

2018-2023 Atlas
2020-2023 Atlas Cross Sport
1998-2005 Beetle
2009-2016 CC
2007-2008 Eos
2009-2013, 2016-2018 Gol
2000-2006, 2019-2021 Golf
2019 Golf SportWagen
2010-2013 Gol Sedan
2001-2005, 2011-2022 Jetta
2006-2008, 2012-2018 Passat
2006 Phaeton
2000, 2003-2004, 2006, 2008-2009 Pointer
2004, 2008 R32
2022 Taos
2004-2017 Touareg
2014-2018 Vento

Features & benefits

Restores Ignition Timing Accuracy: Supports optimal fuel efficiency, performance, and emissions by correcting spark advance during knock conditions.
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.
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.
Direct replacement - this ignition knock sensor is made to match the fit, function and performance of the original equipment on specified vehicles
Ideal solution - engineered to detect vibrations from knock and other combustion problems and replace a knock sensor that has failed
Durable construction - designed and manufactured to strict specifications for reliable performance
Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience

Specifications

Connector Gender	Female
Connector Quantity	1
Connector Shape	Oblong
Country Of Origin	MX
Length	53.4400
Mounting Hardware Included	No
Street Legal	Yes
Terminal Gender	Male
Terminal Quantity	2
Terminal Type	Blade
Wiring Harness Included	No