These bolts basically clamp the cylinder head down onto the engine block, creating a really tight seal. They’re high – tension fasteners, meaning they’re designed to be tightened to a specific amount of force. This force isn't just holding things together; it’s critical for keeping the combustion process contained within the cylinders. They’re also designed to withstand a lot of heat and pressure from the engine firing. They’re a fundamental part of the engine’s top end. Without them, you wouldn’t have proper compression, and the engine just wouldn’t run. Everything from coolant to oil relies on that head being sealed correctly, thanks to these bolts. Think of them as acting like a shield between the combustion chamber and everything else. If these bolts stretch, break, or even just come loose, you'll have major problems. You’ll likely notice if one fails – usually with a loss of power, coolant leaking, or even a blown head gasket. Replacing them isn’t something you want to put off. They’re often torque – to – yield bolts, which means they’re designed to stretch a specific amount when tightened and aren't reusable. If you're doing a head gasket job, you pretty much always replace these. You can find a good selection of them over at Fixparts Online, and they'll have the right ones for your engine. Getting the correct bolt is really important – different engines need different strengths and lengths. Shop with confidence: Cylinder Head Bolt (MPN 07978) comes with a 3 year manufacturer guarantee!

About Febi

Ferdinand Bilstein is well known for reliability and is trusted by repair professionals worldwide.

Why Choose Febi?

• Febi parts are made to the same standards as original equipment, so you get reliable quality. • We offer a really wide range of parts, covering most makes and models – meaning you can likely find everything you need in one place. • Febi has been around for over 75 years, so we know a thing or two about auto parts and what mechanics need. • Our parts are priced fairly, giving you a great balance between quality and cost. Performance you can rely on – Febi parts from FixParts Online.