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Global Parts 1811751 Ignition Knock (Detonation) SensorOE Quality 60-Day Returns
Part #: 1811751

Global Parts 1811751 Ignition Knock (Detonation) Sensor

⚙️ 145 vehicles fit this part
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🚗Fitment: Mazda, Subaru, INFINITI, and Nissan, 6, CX-5, 3, 3 Sport, Legacy, Outback, Tribeca, M45, FX35, FX45, M35, Murano, B9 Tribeca, G35, Q45, 350Z, and Pathfinder
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Overview of Global Parts Ignition Knock Sensor 1811751

The Global Parts Ignition Knock (Detonation) Sensor 1811751 is designed to monitor engine vibrations caused by knocking or detonation. This sensor is compatible with select Infiniti, Mazda, Nissan, and Subaru models, providing reliable detection to help optimize engine performance.

  • Length: 1.9 inches for precise fitment
  • Blade terminal type ensuring secure electrical connection
  • Single rectangular male connector with two terminals
  • Mounting hardware not included for flexible installation options
  • Compatible with multiple models including Infiniti FX35, Nissan 350Z, Mazda CX-5, and Subaru Outback

Detailed Product Description

The Global Parts 1811751 ignition knock sensor features a compact 1.9-inch length and a blade terminal type that supports a reliable electrical connection. It includes one rectangular male connector with two terminals, designed to interface directly with the vehicle’s engine control unit (ECU). This sensor detects engine knock or detonation, allowing the ECU to adjust ignition timing and prevent engine damage. While mounting hardware is not included, the sensor’s design allows for straightforward installation using existing vehicle mounts.

Compatible Vehicles and Applications

This ignition knock sensor is compatible with a range of vehicles from Infiniti, Mazda, Nissan, and Subaru. Specific models include Infiniti FX35, FX45, G35, M35, M45, Q45, and Tribeca; Mazda 3, 3 Sport, 6, and CX-5; Nissan 350Z, Murano, Pathfinder; and Subaru Legacy, Outback, and B9 Tribeca. Using the correct sensor ensures accurate knock detection and engine performance optimization.

Common Issues Addressed by the Knock Sensor

  • Engine knocking or pinging during acceleration
  • Reduced fuel efficiency due to improper ignition timing
  • Check engine light triggered by knock sensor fault codes
  • Engine hesitation or rough idling caused by detonation
  • Potential engine damage from undetected knocking

Installation Notes and Tips

Before installation, verify the sensor’s compatibility with your vehicle’s make and model. The Global Parts 1811751 sensor connects via a single rectangular male connector with two terminals. Since mounting hardware is not included, use the existing sensor bracket or mounting points on the engine block. Ensure the electrical connection is secure and free of corrosion. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Global Parts manufactures this ignition knock sensor to meet OEM specifications for fit and function. While mounting hardware is not included, the sensor undergoes quality checks to ensure reliable performance. Please refer to Global Parts’ warranty policy for coverage details on part defects or failures.

This part fits 145 vehicles. Search below:

YearMakeModelSubmodelDrive TypeLitersCylindersFuel TypePositionNotes
2025MazdaCX-32.0LL4N/A
2024MazdaCX-32.0LL4N/A
2023MazdaCX-32.0LL4N/A
2022Mazda21.5LL4N/A
2022MazdaCX-32.0LL4N/A
2021Mazda21.5LL4N/A
2021NissanGT-RTrack Edition3.8LV6N/A
2020Mazda21.5LL4N/A
2020MazdaCX-32.0LL4N/A
2019Mazda21.5LL4N/A
2019Mazda3 Sport2.0LL4N/A
2019MazdaCX-32.0LL4N/A
2019MazdaCX-52.2LL4N/A
2018Mazda21.5LL4N/A
2018Mazda32.5LL4N/A
2018Mazda3 Sport2.0LL4N/A
2018MazdaCX-32.0LL4N/A
2018MazdaCX-52.0LL4N/A
2018MazdaMX-5 Miata2.0LL4N/A
2018NissanGT-RPremium3.8LV6N/A
2017Mazda21.5LL4N/A
2017Mazda32.0LL4N/A
2017Mazda3 Sport2.0LL4N/A
2017Mazda62.5LL4N/A
2017MazdaCX-32.0LL4N/A
2017MazdaCX-52.0LL4N/A
2017MazdaMX-52.0LL4N/A
2017MazdaMX-5 Miata2.0LL4N/A
2017NissanGT-RNismo3.8LV6N/A
2016Mazda21.5LL4N/A
2016Mazda32.0LL4N/A
2016Mazda3 Sport2.0LL4N/A
2016Mazda62.5LL4N/A
2016MazdaCX-32.0LL4N/A
2016MazdaCX-52.5LL4N/A
2016MazdaMX-52.0LL4N/A
2016MazdaMX-5 Miata2.0LL4N/A
2016NissanGT-RNismo3.8LV6N/A
2015Mazda21.5LL4N/A
2015Mazda32.0LL4N/A
2015Mazda3 Sport2.0LL4N/A
2015Mazda62.5LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2015MazdaCX-52.0LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2015MazdaCX-52.5LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2015MazdaMX-52.0LL4N/A
2015NissanGT-RBlack Edition3.8LV6N/A
2014Mazda32.5LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2014Mazda32.0LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2014Mazda3 Sport2.5LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2014Mazda3 Sport2.0LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2014Mazda62.5LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2014MazdaCX-52.0LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2014MazdaCX-52.5LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2014NissanGT-RTrack Edition3.8LV6N/A
2013MazdaCX-52.0LL4N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2013NissanGT-RBlack Edition3.8LV6N/A
2012Mazda32.0LL4GASN/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2012Mazda3 Sport2.0LL4GASN/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2012NissanGT-RBlack Edition3.8LV6N/A
2011INFINITIEX35BaseAWD3.5LV6N/A
2011INFINITIFX35BaseAWD3.5LV6N/A
2011INFINITIG373.7LV6N/A
2011INFINITIM37X3.7LV6N/A
2011NissanGT-RPremium3.8LV6N/A
2011SubaruLegacy3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2011SubaruOutback3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2011SubaruTribeca3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2010INFINITIEX35JourneyAWD3.5LV6N/A
2010INFINITIFX35BaseAWD3.5LV6N/A
2010INFINITIFX50BaseAWD5.0LV8N/A
2010INFINITIG37XAWD3.7LV6N/A
2010INFINITIM35XAWD3.5LV6N/A
2010INFINITIM454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2010Nissan370ZTouring3.7LV6N/A
2010NissanGT-RPremium3.8LV6N/A
2010NissanMuranoSAWD3.5LV6N/A
2010NissanRogueSLAWD2.5LL4N/A
2010SubaruLegacy3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2010SubaruOutback3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2010SubaruTribeca3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2009INFINITIEX35BaseAWD3.5LV6N/A
2009INFINITIFX35BaseAWD3.5LV6N/A
2009INFINITIFX50BaseAWD5.0LV8N/A
2009INFINITIG37Base3.7LV6N/A
2009INFINITIM35Base3.5LV6N/A
2009INFINITIM454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2009Nissan350ZTouring3.5LV6N/A
2009Nissan370ZTouring3.7LV6N/A
2009NissanGT-RBase3.8LV6N/A
2009NissanMuranoSAWD3.5LV6N/A
2009NissanRogueSAWD2.5LL4N/A
2009SubaruLegacy3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2009SubaruOutback3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2009SubaruTribeca3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2008INFINITIEX35JourneyAWD3.5LV6N/A
2008INFINITIFX35BaseAWD3.5LV6N/A
2008INFINITIFX45BaseAWD4.5LV8N/A
2008INFINITIG35Journey3.5LV6N/A
2008INFINITIG37Journey3.7LV6N/A
2008INFINITIM35Base3.5LV6N/A
2008INFINITIM454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2008Nissan350ZTouring3.5LV6N/A
2008NissanMurano3.5LV6N/A
2008NissanRogueSLAWD2.5LL4N/A
2008SubaruLegacy3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2008SubaruOutback3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2008SubaruTribeca3.6LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2007INFINITIFX353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2007INFINITIFX454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2007INFINITIG35Base3.5LV6N/A
2007INFINITIM353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2007INFINITIM454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2007Nissan350ZBase3.5LV6N/A
2007NissanMurano3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2007SubaruB9 Tribeca3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2007SubaruOutback3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006INFINITIFX353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006INFINITIFX454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006INFINITIG353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006INFINITIM353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006INFINITIM454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006INFINITIQ454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006Nissan350Z3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006NissanMurano3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006SubaruB9 Tribeca3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2006SubaruOutback3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2005INFINITIFX353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2005INFINITIFX454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2005INFINITIG353.5LV6N/AIgnition Knock Sensor; OE #KNE20
2005INFINITIQ454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2005Nissan350Z3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2005NissanMurano3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2005SubaruOutback3.0LH6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2004INFINITIFX353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2004INFINITIFX454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2004INFINITIG353.5LV6N/AIgnition Knock Sensor; OE #KNE20
2004Nissan350Z3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2004NissanMurano3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2004NissanPathfinder3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2003INFINITIFX353.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2003INFINITIFX454.5LV8N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2003INFINITIG353.5LV6N/AIgnition Knock Sensor; OE #KNE20
2003Nissan350Z3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2003NissanMurano3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.
2003NissanPathfinder3.5LV6N/AEnsure compatibility prior to purchasing this Ignition Knock Sensor.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

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