---
product_id: 187108777
title: "NTK ID0251 Ignition Knock (Detonation) Sensor"
brand: "ntk"
price: "1024 kr"
currency: NOK
in_stock: true
reviews_count: 2
category: "Ntk"
url: https://www.desertcart.no/products/187108777-ntk-id0251-ignition-knock-detonation-sensor
store_origin: NO
region: Norway
---

# Piezo ceramic tech for precise knock detection Shielded harness for zero electrical interference Internally sealed to block moisture intrusion NTK ID0251 Ignition Knock (Detonation) Sensor

**Brand:** ntk
**Price:** 1024 kr
**Availability:** ✅ In Stock

## Summary

> 🚗 Knock out engine worries with NTK’s precision sensor!

## Quick Answers

- **What is this?** NTK ID0251 Ignition Knock (Detonation) Sensor by ntk
- **How much does it cost?** 1024 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.no](https://www.desertcart.no/products/187108777-ntk-id0251-ignition-knock-detonation-sensor)

## Best For

- ntk enthusiasts

## Why This Product

- Trusted ntk brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Seamless OEM Fit:** Harness length and wire gauge match original equipment perfectly
- • **Moisture-Resistant Design:** Internally sealed sensor ensures reliable performance in all conditions
- • **Plug-and-Play Installation:** Vehicle-specific fit for hassle-free replacement and instant peace of mind
- • **Durability Meets Innovation:** Advanced piezo ceramic sensor built to last under pressure
- • **Precision Engine Protection:** Detects engine knock instantly to prevent costly damage

## Overview

The NTK ID0251 Ignition Knock Sensor uses advanced piezo ceramic technology to detect engine knock caused by detonation, sending real-time signals to the ECM to optimize ignition timing and prevent engine damage. Designed with an internally sealed, moisture-resistant housing and a shielded harness to eliminate electrical interference, it offers a perfect OEM fit for vehicle-specific applications. Backed by a 3-year warranty, this sensor ensures reliable engine performance, improved fuel economy, and compliance with emissions standards.

## Description

The ignition knock sensor determines if engine knock is present (caused by detonation). A piezoelectric crystal, which generates a varying voltage based upon engine vibration intensity, sends a signal to the ECM. The signal is used to retard ignition timing which prevents engine damage caused by pre-ignition. Located on the engine block, common causes for replacement include check engine lamp illumination, engine hesitation, poor fuel economy and failed emissions tests.

Review: 2003/split year - If you have a 2003 check that it’s not a split year mine is an si have to buy another one this one works but it reads as ghost code
Review: Knock sensor 3.6 r Subaru outback - Works as it should no quality issues as far as I’ve seen. Fixed my check engine light

## Features

- Determines if engine knock (caused by detonation) is present
- Internally sealed to prevent moisture intrusion
- Advanced piezo ceramic technology for increased durability
- Shielded harness prevents electrical interference
- Harness length and wire gauge matches Original Equipment
- Fit type: Vehicle Specific

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07F486WGX |
| Best Sellers Rank | #570,022 in Automotive ( See Top 100 in Automotive ) #290 in Automotive Replacement Detonation Sensors |
| Brand | NTK |
| Brand Name | NTK |
| Customer Reviews | 4.0 out of 5 stars 21 Reviews |
| Global Trade Identification Number | 00087295729069 |
| Included Components | Sensor |
| Item Dimensions | 1.5 x 1 x 2.63 inches |
| Item Highlight | Replaces 242-1057. OE-grade O2 sensor. |
| Item Type Name | Ignition Knock (Detonation) Sensor |
| Item Weight | 1.76 ounces |
| Item dimensions L x W x H | 1.5 x 1 x 2.63 inches |
| Manufacturer | NGK |
| Material | Plastic, Rubber |
| Material Type | Plastic, Rubber |
| Model | ID0251 |
| Mounting Type | Flange Mount |
| Number of Items | 1 |
| Output Type | Digital |
| Part Number | ID0251 |
| Specific Uses For Product | Ignition Knock (Detonation) Sensor |
| Style | Modern |
| Style Name | Modern |
| UPC | 087295729069 |
| Unit Count | 1 Count |
| Warranty Description | 3 Year |

## Product Details

- **Brand:** NTK
- **Item Weight:** 1.76 ounces
- **Item dimensions L x W x H:** 1.5 x 1 x 2.63 inches
- **Material:** Plastic, Rubber
- **Style:** Modern

## Images

![NTK ID0251 Ignition Knock (Detonation) Sensor - Image 1](https://m.media-amazon.com/images/I/515zznFNYLL.jpg)
![NTK ID0251 Ignition Knock (Detonation) Sensor - Image 2](https://m.media-amazon.com/images/I/5158PHv2VuL.jpg)
![NTK ID0251 Ignition Knock (Detonation) Sensor - Image 3](https://m.media-amazon.com/images/I/614sEW+2dCL.jpg)
![NTK ID0251 Ignition Knock (Detonation) Sensor - Image 4](https://m.media-amazon.com/images/I/61FNLzSflaL.jpg)
![NTK ID0251 Ignition Knock (Detonation) Sensor - Image 5](https://m.media-amazon.com/images/I/61GZf4ADpwL.jpg)

## Customer Reviews

### ⭐⭐⭐ 2003/split year
*by P***O on May 22, 2023*

If you have a 2003 check that it’s not a split year mine is an si have to buy another one this one works but it reads as ghost code

### ⭐⭐⭐⭐ Knock sensor 3.6 r Subaru outback
*by K***N on August 29, 2023*

Works as it should no quality issues as far as I’ve seen. Fixed my check engine light

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**Shop now:** [https://www.desertcart.no/products/187108777-ntk-id0251-ignition-knock-detonation-sensor](https://www.desertcart.no/products/187108777-ntk-id0251-ignition-knock-detonation-sensor)

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*Product available on Desertcart Norway*
*Store origin: NO*
*Last updated: 2026-10-25*