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OE Quality
60-Day Returns
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WalkerPart #: 242-1397
Walker 242-1397 Ignition Knock (Detonation) Sensor
⚙️ 4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$322.07Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ 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: Chevrolet, City Express
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Ignition Knock (Detonation) Sensor options
Walker 242-1397 Ignition Knock (Detonation) Sensor
| Brand | Walker |
| Part Number | 242-1397 |
| Position | Sensor Only |
| Terminal Type | Spade |
| Connector Quantity | 1 |
| Connector Shape | Rectangle |
| Terminal Quantity | 2 |
| Connector Gender | Female |
| Terminal Gender | Male |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Chevrolet | City Express | 2.0L | L4 | N/A | Sensor Only |
| 2017 | Chevrolet | City Express | 2.0L | L4 | N/A | Sensor Only |
| 2016 | Chevrolet | City Express | 2.0L | L4 | N/A | Sensor Only |
| 2015 | Chevrolet | City Express | 2.0L | L4 | N/A | Sensor Only |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.