These bolts clamp the cylinder head down onto the engine block, creating a really tight seal. They hold everything together, resisting the incredible forces from combustion inside the engine. They’re also designed to maintain the proper alignment between the head and the block. Think of the cylinder head as the lid on top of your engine. These bolts are what keep that lid sealed tight. Without them, you’d have exhaust gases leaking out, coolant leaking out, oil leaking out… it’d be a mess, and your engine wouldn’t run at all. They’re a critical part of the engine’s sealing system. Because of those combustion forces I mentioned, these bolts are under a ton of stress. They stretch and compress with every firing of the engine. That stretching is actually by design—it helps them maintain a consistent clamping force. But over time, they can fatigue and lose their strength. If they fail, you'll likely notice a loss of power, coolant leaks, or even a blown head gasket. Replacing them is often part of any major top – end engine work, and it's always best to do it proactively rather than wait for a failure. You can find a good selection of these, including different grades and sizes, over at Fixparts Online. It's really best to stick with the correct bolts for your engine—don’t just grab something that looks similar. More than just a part: Screw (MPN VOE422086) includes a 12-month warranty!

About Volvo Construction

Volvo Construction Equipment produces machinery designed for the toughest construction and mining operations.

Why Choose Volvo Construction?

• Get parts built to the exact standards of your Volvo machine, so things fit right and work like they should. • Reduce downtime with reliable parts and a strong parts network – keeping your equipment running and earning. • Protect your investment – using genuine Volvo parts helps maintain the value of your machine. • Improve performance and efficiency – our parts are designed to work with your Volvo machine for optimal results. FixParts Online – Your Trusted Source for Quality Volvo Construction Auto Parts.