Knock Sensor

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Knock Sensors

At GSF Car Parts, we have a selection of knock sensors for you to browse. If your sensor is playing up, you'll find the one you need for your vehicle here using our handy product finder tool. Simply add your registration number or make and model to the designated search box, and we'll show you all the parts we have that are suitable for your exact car make and model.

What is a Knock Sensor?

"Knocking" happens when the air-to-fuel mixture ignites prematurely. A knock sensor detects and identifies these knocking vibrations of the engine and then sends a signal to the ECU. It will then adjust the ignition timing and start the ignition as early as possible.

A faulty or broken knock sensor can cause the ECU to incorrectly adjust the ignition timing, resulting in poor engine performance. The engine will feel off, especially when carrying light or heavy loads.

What Other Car Parts do we Stock?

We stock various mixture formation parts and spares to keep your engine ticking over smoothly. Including coolant temperature sender units, boost pressure sensors, injectors, injector nozzles, accelerator cables, lambda sensors, exhaust pressure sensors, and much more! So if any of your fuel mixture spares need to be fixed or replaced, get in touch today. And we'll get the parts to you quickly.

We stock a full range of car parts and spares for other repairs or servicing on your car, from service, engine, transmission, exhaust, electrics, fuel and emissions, braking systems, and cooling and heating parts. All are sourced from our trusted and reliable auto partners.

Shop Knock Sensors at GSF Car Parts Online and In-Store

All our knock sensors are from trusted brands in the motoring industry, so you can count on them to be reliable and of excellent quality. Plus, our low-price promise means you can always expect great value too.

We offer free UK delivery on all online orders over £25, plus 60-day returns*. We also know you want to get your car up and running as soon as possible, which is why we offer a Click and Collect service that allows you to get your knock sensor in just an hour.

So, buy knock sensors from us with confidence today. Or if you’re close to one of our 180 store locations across the UK & Ireland, drop by. Our experienced staff will be able to direct you to the correct part for your vehicle.