Volvo S40 Thermostat for Cooling System

Thermostats

You've come to the right place if you're looking for a replacement engine thermostat. At GSF Car Parts, we stock various premium thermostats from reliable auto manufacturers for multiple vehicles. To find the correct type for your car, just enter your registration or make and model into the search box and we'll do the rest.

What is a Car Thermostat?

A thermostat opens or closes a valve to control coolant flow between the car's radiator and engine. It responds to changes in temperature. The valve itself operates through a wax-container element. As coolant temperature increases, the fluid (or wax) container melts and enlarges, which, in turn, pushes a small bar, dividing a centre plate from its mounting base to expose the valve. The thermostat also helps to keep your engine running smoothly and reduces engine wear. Ensuring optimum fuel economy and harmful emissions.

If your car starts overheating quickly after starting it, or the dashboard temperature gauge drops below normal, it might be an indication that your thermostat has failed.

What Other Car Parts do we Stock?

Keeping your cooling and heating system in check is vital for keeping your car warm and your engine temperature running smoothly. We hold stock of cooling system spares for every eventuality, including full radiators, thermostats, water pumps, radiator fans, antifreeze, radiator mountings, and much more!

Those of you who love to work on your car at home can learn how to spot a radiator leak and perform a coolant flush with our handy knowledge hub guides. Check how your thermostat works and how to change it. And if you're new to car maintenance but want to learn, you can start by finding out what antifreeze is here. 

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 Thermostats at GSF Car Parts Online and In-Store

All our thermostats 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 thermostat in just an hour.

So, buy thermostats 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.