These little guys basically control the flow of exhaust gases out of your engine. They open and close, timed perfectly with the engine’s cycle, to let the burnt fuel and air escape. There are usually multiple of them per engine – one for each cylinder, generally. They don’t just open and close randomly though, a camshaft dictates when and how far they open. It’s a pretty precise operation. Think of it as one part of a larger system that gets rid of the waste products from combustion. The exhaust valve works alongside the intake valve, the pistons, and the camshaft to make the whole engine cycle work efficiently. It's directly involved in how much power your engine can make and how cleanly it runs. It’s responsible for letting the “bad air” out so fresh air and fuel can come in and repeat the process. If an exhaust valve fails, you’ll notice it. You might get a loss of power, rough idling, a misfire, or even a check engine light. Sometimes you'll hear a ticking sound. It can also lead to more serious issues like engine damage if it’s not addressed. A good exhaust valve acts like a shield, protecting the rest of the engine from overheating and maintaining performance. They take a lot of heat and stress, so they do eventually wear out. If you’re doing a head job or rebuilding an engine, it’s always smart to replace the exhaust valves along with the guides and seals. You can find a good selection of these, and all the related parts, over at Fixparts Online if you're looking. Get more for your money: Exhaust Valve (MPN 771010) is covered for 12 months!

About TRW

TRW is renowned for its precision-engineered steering parts that meet or exceed OEM standards.

Why Choose TRW?

• TRW parts are known for being reliable and lasting a long time, meaning fewer repairs for you. • We make parts for many different types of vehicles, so there's a good chance we have what you need. • TRW has been a trusted name in auto parts for over 100 years – we have a lot of experience. • Our parts meet or exceed the standards set by car manufacturers, so you can be confident in their quality and safety. FixParts Online – Your Trusted Source for Quality TRW Auto Parts.