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Ignition Knock (Detonation) Sensor
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Ignition Knock (Detonation) Sensor (Walker Products) for 2019-2021 Buick, Cadillac, Chevrolet, & GMC NEW

$ 26 .06

Product Notes

⚠️ Most jobs typically require 2 of this item.

Sensor Only
Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001/IATF16949 certified company, we are committed to supplying the highest quality products. © 2024 Walker Products Inc. All rights reserved.
Brand: Walker Products
Condition: New
See All Other Ignition Knock (Detonation) Sensors
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
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Specifications & Info


Attribute Value
CA Prop65 Lead Warning: This Product Can Expose You To Chemicals, Including Lead, Which Is Known To The State Of California To Cause Cancer Or Birth Defects Or Other Reproductive Harm. Www.p65warnings.ca.gov
Connector Gender Female
Connector Quantity 1
Connector Shape Oblong
Terminal Gender Male
Terminal Quantity 2
Terminal Type Pin

Vehicle Fitment Guide

This part fits the following vehicles:

Buick 2 models (tapclick to expand)(tapclick to hide)
Encore GX 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Convenience SUV 2020 - 2021 L3 1.3L Turbo FWD Automatic CVT
Essence SUV 2020 - 2021 L3 1.2L Turbo AWD/FWD Automatic & Automatic CVT
Essence SUV 2020 - 2021 L3 1.3L Turbo AWD/FWD Automatic & Automatic CVT
Leather SUV 2020 - 2021 L3 1.3L Turbo FWD Automatic CVT
Preferred SUV 2020 - 2021 L3 1.2L Turbo AWD/FWD Automatic & Automatic CVT
Preferred SUV 2020 - 2021 L3 1.3L Turbo AWD/FWD Automatic & Automatic CVT
Select SUV 2020 - 2021 L3 1.2L Turbo AWD/FWD Automatic & Automatic CVT
Select SUV 2020 - 2021 L3 1.3L Turbo AWD/FWD Automatic & Automatic CVT
Sport Touring SUV 2020 - 2021 L3 1.3L Turbo FWD Automatic CVT
Envision 2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Avenir SUV 2021 L4 2.0L Turbo AWD/FWD Automatic
Essence SUV 2021 L4 2.0L Turbo AWD/FWD Automatic
Leather SUV 2021 L4 2.0L Turbo FWD Automatic
Preferred SUV 2021 L4 2.0L Turbo AWD/FWD Automatic
Cadillac 5 models (tapclick to expand)(tapclick to hide)
CT4 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Luxury Sedan 2020 - 2021 L4 2.0L Turbo AWD/RWD Automatic
Premium Luxury Sedan 2020 - 2021 L4 2.0L Turbo AWD/RWD Automatic
Premium Luxury Sedan 2020 - 2021 L4 2.7L Turbo AWD/RWD Automatic
Sport Sedan 2020 - 2021 L4 2.0L Turbo AWD/RWD Automatic
V Sedan 2020 - 2021 L4 2.7L Turbo AWD/RWD Automatic
CT5 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Luxury Sedan 2020 - 2021 L4 2.0L Turbo AWD/RWD Automatic
Premium Luxury Sedan 2020 - 2021 L4 2.0L Turbo AWD/RWD Automatic
Premium Luxury Sedan 2020 - 2021 V6 3.0L Turbo AWD/RWD Automatic
Sport Sedan 2020 - 2021 L4 2.0L Turbo AWD/RWD Automatic
V Sedan 2020 - 2021 V6 3.0L Turbo AWD/RWD Automatic
XT4 2019-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2019 L4 2.0L Turbo FWD Automatic
Luxury SUV 2019 - 2021 L4 2.0L Turbo FWD/4WD Automatic
Premium Luxury SUV 2019 - 2021 L4 2.0L Turbo FWD/4WD Automatic
Sport SUV 2019 - 2021 L4 2.0L Turbo FWD/4WD Automatic
XT5 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Livery Hearse 2021 L4 2.0L Turbo FWD/4WD Automatic
Livery Limousine 2021 L4 2.0L Turbo FWD/4WD Automatic
Livery SUV 2021 L4 2.0L Turbo FWD/4WD Automatic
Luxury SUV 2020 - 2021 L4 2.0L Turbo FWD/4WD Automatic
Luxury SUV 2020 - 2021 V6 3.6L FWD Automatic
Premium Luxury SUV 2020 - 2021 L4 2.0L Turbo FWD/4WD Automatic
Premium Luxury SUV 2020 - 2021 V6 3.6L FWD/4WD Automatic
Sport SUV 2020 - 2021 V6 3.6L 4WD Automatic
XT6 2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Luxury SUV 2021 L4 2.0L Turbo FWD/4WD Automatic
Premium Luxury SUV 2021 V6 3.6L FWD/4WD Automatic
Sport SUV 2021 V6 3.6L 4WD Automatic
Chevrolet 3 models (tapclick to expand)(tapclick to hide)
Blazer 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Base SUV 2020 - 2021 V6 3.6L FWD Automatic
L SUV 2020 - 2021 L4 2.5L FWD Automatic
LS SUV 2020 L4 2.5L FWD Automatic
LT SUV 2020 - 2021 L4 2.0L Turbo AWD/FWD Automatic
LT SUV 2020 - 2021 L4 2.5L AWD/FWD Automatic
LT SUV 2020 - 2021 V6 3.6L AWD/FWD Automatic
Premier SUV 2021 L4 2.0L Turbo AWD/FWD Automatic
Premier SUV 2020 - 2021 V6 3.6L AWD/FWD Automatic
RS SUV 2020 - 2021 V6 3.6L AWD/FWD Automatic
True North SUV 2021 L4 2.0L Turbo AWD Automatic
True North SUV 2020 - 2021 V6 3.6L AWD Automatic
Silverado 1500 2019-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
Custom Crew Cab Pickup 2020 - 2021 L4 2.7L Turbo RWD/4WD Automatic
Custom Crew Cab Pickup 2020 - 2021 V8 5.3L FLEX RWD/4WD Automatic
Custom Crew Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
Custom Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
Custom Extended Cab Pickup 2020 - 2021 L4 2.7L Turbo RWD/4WD Automatic
Custom Extended Cab Pickup 2020 - 2021 V8 5.3L FLEX RWD/4WD Automatic
Custom Extended Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
Custom Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
Custom Trail Boss Crew Cab Pickup 2020 - 2021 V8 5.3L FLEX 4WD Automatic
Custom Trail Boss Crew Cab Pickup 2020 - 2021 V8 6.2L 4WD Automatic
Custom Trail Boss Crew Cab Pickup 2019 - 2021 V6 4.3L 4WD Automatic
Custom Trail Boss Crew Cab Pickup 2019 - 2021 V8 5.3L 4WD Automatic
Custom Trail Boss Extended Cab Pickup 2020 - 2021 V8 5.3L FLEX 4WD Automatic
Custom Trail Boss Extended Cab Pickup 2020 - 2021 V8 6.2L 4WD Automatic
Custom Trail Boss Extended Cab Pickup 2019 - 2021 V6 4.3L 4WD Automatic
Custom Trail Boss Extended Cab Pickup 2019 - 2021 V8 5.3L 4WD Automatic
High Country Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
High Country Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
High Country Crew Cab Pickup 2019 - 2021 V8 6.2L RWD/4WD Automatic
LT Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
LT Crew Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
LT Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
LT Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
LT Extended Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
LT Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
LT Trail Boss Crew Cab Pickup 2020 - 2021 V8 6.2L 4WD Automatic
LT Trail Boss Crew Cab Pickup 2019 - 2021 V8 5.3L 4WD Automatic
LTZ Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
LTZ Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
LTZ Crew Cab Pickup 2019 - 2021 V8 6.2L RWD/4WD Automatic
LTZ Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
LTZ Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
LTZ Extended Cab Pickup 2019 - 2021 V8 6.2L RWD/4WD Automatic
RST Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
RST Crew Cab Pickup 2020 - 2021 V8 6.2L RWD/4WD Automatic
RST Crew Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
RST Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
RST Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
RST Extended Cab Pickup 2020 - 2021 V8 6.2L RWD/4WD Automatic
RST Extended Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
RST Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
SSV Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
SSV Crew Cab Pickup 2019 - 2021 V8 5.3L FLEX RWD/4WD Automatic
WT Crew Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
WT Crew Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
WT Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
WT Crew Cab Pickup 2019 - 2021 V8 5.3L FLEX RWD/4WD Automatic
WT Extended Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
WT Extended Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
WT Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
WT Extended Cab Pickup 2019 - 2021 V8 5.3L FLEX RWD/4WD Automatic
WT Standard Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
WT Standard Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
WT Standard Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
WT Standard Cab Pickup 2019 - 2021 V8 5.3L FLEX RWD/4WD Automatic
WT Cab Regular Standard Cab Pickup 2019 - 2020 V6 4.3L RWD/4WD Automatic
WT Doble Cabina Crew Cab Pickup 2019 - 2020 V6 4.3L RWD/4WD Automatic
Trailblazer 2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
ACTIV SUV 2021 L3 1.3L Turbo AWD/FWD Automatic & Automatic CVT
L SUV 2021 L3 1.2L Turbo FWD Automatic CVT
LS SUV 2021 L3 1.2L Turbo AWD/FWD Automatic & Automatic CVT
LS SUV 2021 L3 1.3L Turbo AWD/FWD Automatic & Automatic CVT
LT SUV 2021 L3 1.2L Turbo AWD/FWD Automatic & Automatic CVT
LT SUV 2021 L3 1.3L Turbo AWD/FWD Automatic & Automatic CVT
RS SUV 2021 L3 1.3L Turbo AWD/FWD Automatic & Automatic CVT
GMC 2 models (tapclick to expand)(tapclick to hide)
Acadia 2020-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
AT4 SUV 2020 - 2021 V6 3.6L AWD/4WD Automatic
Black SUV 2021 V6 3.6L AWD Automatic
Denali SUV 2021 L4 2.0L Turbo FWD/4WD Automatic
Denali SUV 2020 - 2021 V6 3.6L AWD/FWD/4WD Automatic
SL SUV 2020 - 2021 L4 2.5L FWD Automatic
SLE SUV 2020 - 2021 L4 2.0L Turbo FWD/4WD Automatic
SLE SUV 2020 - 2021 L4 2.5L FWD/4WD Automatic
SLE SUV 2020 - 2021 V6 3.6L FWD/4WD Automatic
SLT SUV 2020 - 2021 L4 2.0L Turbo FWD/4WD Automatic
SLT SUV 2020 - 2021 V6 3.6L FWD/4WD Automatic
Sierra 1500 2019-2021 (tapclick to expand)(tapclick to hide)
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SubmodelSUB-
MODEL		 Body Style Years Engine Attributes
AT4 Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo 4WD Automatic
AT4 Crew Cab Pickup 2019 - 2021 V8 5.3L 4WD Automatic
AT4 Crew Cab Pickup 2019 - 2021 V8 6.2L 4WD Automatic
AT4 Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo 4WD Automatic
AT4 Extended Cab Pickup 2019 - 2021 V8 5.3L 4WD Automatic
AT4 Extended Cab Pickup 2019 - 2021 V8 6.2L 4WD Automatic
Base Crew Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
Base Crew Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
Base Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
Base Crew Cab Pickup 2019 - 2021 V8 5.3L FLEX RWD/4WD Automatic
Base Extended Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
Base Extended Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
Base Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
Base Extended Cab Pickup 2019 - 2021 V8 5.3L FLEX RWD/4WD Automatic
Base Standard Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
Base Standard Cab Pickup 2019 - 2021 V6 4.3L RWD/4WD Automatic
Base Standard Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
Base Standard Cab Pickup 2019 - 2021 V8 5.3L FLEX RWD/4WD Automatic
Denali Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
Denali Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
Denali Crew Cab Pickup 2019 - 2021 V8 6.2L RWD/4WD Automatic
Elevation Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
Elevation Crew Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
Elevation Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
Elevation Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
Elevation Extended Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
Elevation Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
SLE Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
SLE Crew Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
SLE Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
SLE Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
SLE Extended Cab Pickup 2019 - 2021 L4 2.7L Turbo RWD/4WD Automatic
SLE Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
SLT Crew Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
SLT Crew Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
SLT Crew Cab Pickup 2019 - 2021 V8 6.2L RWD/4WD Automatic
SLT Extended Cab Pickup 2020 - 2021 L6 3.0L DIESEL Turbo RWD/4WD Automatic
SLT Extended Cab Pickup 2019 - 2021 V8 5.3L RWD/4WD Automatic
SLT Extended Cab Pickup 2019 - 2021 V8 6.2L RWD/4WD Automatic
Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Walker Products began supplying the fuel system needs of the automotive industry in 1946. Today Walker is one of the largest, privately owned manufacturers of fuel system components and engine sensors, and has served the needs of the worldwide automotive aftermarket. We are committed to supplying products manufactured to meet or exceed OEM standards and specifications. This effort is backed by our own manufacturing, product management and engineering staff to ensure it is maintained and accurate in the production of quality parts, vehicle applications, instruction sheets and technical support. Our products include Carburetor and Fuel Injection Repair Kits, Oxygen Sensors and other Engine Management products such as Throttle Position Sensors, Cam and Crankshaft Sensors, Fuel Injectors, Spark Plug Wires and Gaskets. As an ISO 9001/IATF16949 certified company, we are committed to supplying the highest quality products. © 2024 Walker Products Inc. All rights reserved.

Fits Years: 2019 2020 2021

Fits Models: Acadia, Blazer, CT4, CT5, Encore GX, Envision, Sierra 1500, Silverado 1500, Trailblazer, XT4, XT5, XT6

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⚠️ Related Trouble Codes (OBD-II)

1 matching guide

If your scan tool is showing one of these trouble codes, this part is a common fix. Each guide explains the code, how to diagnose it, and exactly what to replace.

↑ A single part can trigger multiple related trouble codes. Each guide is vehicle- and code-specific.
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120
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Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

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