Renault 18 Cylinder Head Components

Cylinder Head

Purchase high-quality cylinder head parts and repair kits from GSF Car Parts. You'll find every spare part you need to keep your engine cylinder in working order – including head gaskets. We even have head gasket sets that include valve stem seals and covers, so you can address a blown gasket quickly and with ease.

Finding the right engine cylinder head components for your vehicle couldn't be simpler – just enter your registration number or select your make and model from the dropdown lists above, and we'll show you the best high-quality and low-cost parts for your car.

We're confident we can provide you with all the engine parts and lubricants you require, no matter how small. All of our car parts and accessories are from top trusted brands and available at great prices, thanks to our low-cost promise. So, you can buy engine cylinder heads and much more with confidence, knowing you're getting great value for money.

What is a Cylinder Head in a Car Engine?

The cylinder head sits at the top of the engine. Its purpose is to seal the top of the cylinder to create the combustion chamber. The head also forms the housing for the holds the injectors, valves, and spark plugs. It also has internal passageways for coolant and engine oil.

Is a Cylinder Head the Same as a Head Gasket?

No, a head gasket sits between the cylinder head and the engine block. The Cylinder head houses the valves and spark plugs and the engine block keeps the pistons and cylinders.

The head gasket which is located between these two engine parts is engineered to seal the internal combustion process. Keeping any coolant or oil from leaking out. It also keeps the combustion chamber sealed so that your car can keep up the correct compression to keep your engine's power up.

What are the First Signs of a Blown Head Gasket?

There are a few signs to look and listen for that will indicate a blown head gasket.

• Rough idle or engine knocking - If your engine is knocking, idling rough, or even stalling the head gasket could be blown. 
• Low coolant level - A failing head gasket between an engine combustion chamber and a coolant channel could mean coolant getting into the engine. Causing overheating or worse
• White smoke from exhaust pipe - When coolant is burnt in the engine it comes out as white vapour from the exhaust
• Engine overheating - If your engine is overheating regularly then it could be a coolant leak from the head gasket
• Contaminated engine oil - If you notice a white frothy substance under your oil cap it might be a sign of coolant getting into the engine

Is it Ok to Drive with a Blown Head Gasket?

Not really. If you were limping to the garage it might be ok but it isn't recommended. When the seal is blown, the pressure in the combustion chamber will drop, causing a loss of power. And if there is a coolant leak your engine may overheat.

Shop Cylinder Head Parts at GSF Car Parts Online and In-Store

All our cylinder head parts 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*. So, buy your cylinder head from us with confidence today. Or if you’re close to one of our 180 store locations across the UK & Ireland, just drop by and our experienced staff will be able to direct you to the right part for your vehicle.