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GM Genuine Parts Ignition Knock (Detonation) Sensor
OE

GM Genuine Parts Ignition Knock (Detonation) Sensor

GM Part #12623095

ACDelco Part #12623095

MSRP$44.96*

ACDelco GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM-recommended replacements for your vehicle's original components.

  • Sends signals to the engine control module (ECM) to adjust timing
  • Helps prevent damage to the engine caused by pre-ignition
  • GM-recommended replacement part for your GM vehicle's original factory component

About this product

ACDelco GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM-recommended replacements for your vehicle's original components. These sensors create a voltage signal based on the vibrations caused by erratic air/fuel mixture combustion; the engine control module uses these signals to adjust the ignition timing and air/fuel mixture. These original equipment ignition knock sensors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

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  • Sends signals to the engine control module (ECM) to adjust timing
  • Helps prevent damage to the engine caused by pre-ignition
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Product Specifications

Mounting Hardware IncludedYes
Mounting TypeBolted
Wiring Harness IncludedNo
Connector ShapeOval
Terminal Quantity2
Threaded End Diameter0.31 in / 8 mm
Length2.09 in / 53 mm
ClassificationOE
Connector Quantity1
Terminal TypePin
Terminal GenderMale
Connector GenderFemale

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

Good Maintenance Practices:

  • Use approved octane fuel for your vehicle.
  • Have vehicle serviced if 'Check Engine' light illuminates.

ModelBody StyleTrimYear(s)
EnvisionBase, Essence, Preferred, Premium, Premium II2016, 2017, 2018, 2019, 2020
LaCrosseBase, Essence, Preferred, Premium2018, 2019
RegalBase, GS, Premium, Sport Touring2014, 2015, 2016, 2017
Regal SportbackAvenir, Base, Essence, Preferred, Preferred II2018, 2019, 2020
Regal TourX2018, 2019, 2020

Frequently Asked Questions

Yes. With a faulty sensor, there is a chance that higher emissions are being produced from the engine because the engine is running hot.

Yes. Knock is caused by pre-ignition or detonation. If left uncorrected, it can cause possible damage to the motor.