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Walker 242-1391 Ignition Knock (Detonation) SensorOE Quality 60-Day Returns
Walker 242-1391 Ignition Knock (Detonation) Sensor - view 1
Walker 242-1391 Ignition Knock (Detonation) Sensor - view 2
Walker 242-1391 Ignition Knock (Detonation) Sensor - view 3
Walker 242-1391 Ignition Knock (Detonation) Sensor - view 4
Part #: 242-1391

Walker 242-1391 Ignition Knock (Detonation) Sensor

Sensor Only
⚙️ 83 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$39.59Free Shipping
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🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Sensor Only
🚗Fitment: Buick, Cadillac, Chevrolet, and GMC, Acadia, Blazer, Canyon, Colorado, CT4, CT5, CT6, Encore GX, Envision, Sierra 1500, Sierra 1500 Limited, Silverado 1500, Silverado 1500 LTD, Trailblazer, Traverse, XT4, XT5, and XT6
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Walker 242-1391 Ignition Knock (Detonation) Sensor
BrandWalker
Part Number242-1391
PositionSensor Only
Terminal TypePin
Connector Quantity1
Connector ShapeOblong
Terminal Quantity2
Connector GenderFemale
Terminal GenderMale

This part fits 83 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2025BuickEncore GX1.3LL3N/ASensor Only
2025BuickEnvision2.0LL4N/ASensor Only
2025CadillacCT42.7LL4N/ASensor Only
2025CadillacCT52.0LL4N/ASensor Only
2025CadillacXT42.0LL4N/ASensor Only
2025CadillacXT52.0LL4N/ASensor Only
2025CadillacXT62.0LL4N/ASensor Only
2025ChevroletBlazer2.0LL4N/ASensor Only
2025ChevroletColorado2.7LL4N/ASensor Only
2025ChevroletSilverado 15002.7LL4N/ASensor Only
2025ChevroletTrailblazer1.3LL3N/ASensor Only
2025ChevroletTraverse2.5LL4N/ASensor Only
2025GMCAcadia2.5LL4N/ASensor Only
2025GMCCanyon2.7LL4N/ASensor Only
2025GMCSierra 15002.7LL4N/ASensor Only
2024BuickEncore GX1.3LL3N/ASensor Only
2024BuickEnvision2.0LL4N/ASensor Only
2024CadillacCT42.7LL4N/ASensor Only
2024CadillacCT52.0LL4N/ASensor Only
2024CadillacXT42.0LL4N/ASensor Only
2024CadillacXT52.0LL4N/ASensor Only
2024CadillacXT62.0LL4N/ASensor Only
2024ChevroletBlazer2.0LL4N/ASensor Only
2024ChevroletColorado2.7LL4N/ASensor Only
2024ChevroletSilverado 15002.7LL4N/ASensor Only
2024ChevroletTrailblazer1.3LL3N/ASensor Only
2024ChevroletTraverse2.5LL4N/ASensor Only
2024GMCAcadia2.5LL4N/ASensor Only
2024GMCCanyon2.7LL4N/ASensor Only
2024GMCSierra 15002.7LL4N/ASensor Only
2023BuickEncore GX1.3LL3N/ASensor Only
2023BuickEnvision2.0LL4N/ASensor Only
2023CadillacCT42.7LL4N/ASensor Only
2023CadillacCT52.0LL4N/ASensor Only
2023CadillacXT42.0LL4N/ASensor Only
2023CadillacXT52.0LL4N/ASensor Only
2023CadillacXT62.0LL4N/ASensor Only
2023ChevroletBlazer2.0LL4N/ASensor Only
2023ChevroletColorado2.7LL4N/ASensor Only
2023ChevroletSilverado 15002.7LL4N/ASensor Only
2023ChevroletTrailblazer1.3LL3N/ASensor Only
2023GMCAcadia2.0LL4N/ASensor Only
2023GMCCanyon2.7LL4N/ASensor Only
2023GMCSierra 15002.7LL4N/ASensor Only
2022BuickEncore GX1.3LL3N/ASensor Only
2022BuickEnvision2.0LL4N/ASensor Only
2022CadillacCT42.7LL4N/ASensor Only
2022CadillacCT52.0LL4N/ASensor Only
2022CadillacXT42.0LL4N/ASensor Only
2022CadillacXT52.0LL4N/ASensor Only
2022CadillacXT62.0LL4N/ASensor Only
2022ChevroletBlazer2.0LL4N/ASensor Only
2022ChevroletSilverado 15002.7LL4N/ASensor Only
2022ChevroletSilverado 1500 LTD2.7LL4N/ASensor Only
2022ChevroletTrailblazer1.3LL3N/ASensor Only
2022GMCAcadia2.0LL4N/ASensor Only
2022GMCSierra 15002.7LL4N/ASensor Only
2022GMCSierra 1500 Limited2.7LL4N/ASensor Only
2021BuickEncore GX1.3LL3N/ASensor Only
2021BuickEnvision2.0LL4N/AExc.Harness; Sensor Only
2021CadillacCT42.7LL4N/ASensor Only
2021CadillacCT52.0LL4N/AExc.Harness; Sensor Only
2021CadillacXT42.0LL4N/ASensor Only
2021CadillacXT52.0LL4N/AExc.Harness; Sensor Only
2021CadillacXT62.0LL4N/AExc.Harness; Sensor Only
2021ChevroletBlazer2.0LL4N/AExc.Harness; Sensor Only
2021ChevroletSilverado 15002.7LL4N/ASensor Only
2021ChevroletTrailblazer1.3LL3N/ASensor Only
2021GMCAcadia2.0LL4N/AExc.Harness; Sensor Only
2021GMCSierra 15002.7LL4N/ASensor Only
2020BuickEncore GX1.3LL3N/ASensor Only
2020CadillacCT42.7LL4N/ASensor Only
2020CadillacCT52.0LL4N/AExc.Harness; Sensor Only
2020CadillacXT42.0LL4N/AExc.Harness; Sensor Only
2020CadillacXT52.0LL4N/AExc.Harness; Sensor Only
2020ChevroletBlazer2.0LL4N/AExc.Harness; Sensor Only
2020ChevroletSilverado 15002.7LL4N/ASensor Only
2020GMCAcadia2.0LL4N/AExc.Harness; Sensor Only
2020GMCSierra 15002.7LL4N/ASensor Only
2019CadillacCT62.0LL4N/ASensor Only
2019CadillacXT42.0LL4N/AExc.Harness; Sensor Only
2019ChevroletSilverado 15002.7LL4N/ASensor Only
2019GMCSierra 15002.7LL4N/ASensor Only

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

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