AFI Knock Sensor - 350Z DE - KN1278
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Description
AFI KN1278 is the engine knock sensor for Nissan 350Z models fitted with the VQ35DE engine. It detects engine vibration associated with combustion knock and provides this information to the engine control unit for ignition-timing management.
Fitment
- 2003–2006 · VQ35DE, including Rev-Up variants
- Engine-mounted knock sensor.
- One KN1278 sensor required per vehicle.
Product Details
| Manufacturer | AFI |
|---|---|
| Part Number | KN1278 |
| Product Type | Engine knock sensor |
| Engine Application | VQ35DE |
| Position | Engine |
| Quantity Required | One per vehicle |
| Contents | One knock sensor |
Why Choose This Product?
- Correct knock-sensor application for the VQ35DE engine.
- Detects vibration associated with abnormal combustion.
- Vehicle-specific AFI engine-management component.
Confirm that the vehicle is fitted with the VQ35DE engine. Later VQ35HR-powered 350Z models use a different knock-sensor arrangement and are not covered by this listing.
Modified vehicles and engine conversions should have the existing sensor and electrical connector compared before ordering.
If you are unsure about fitment, contact Zend It Auto Parts with your model, year and engine before ordering.

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$79.95
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