These valves basically control how air and fuel get into the engine's cylinders. Think of them like little doors – they open to let the mixture in, then close tight to seal everything up for combustion. They work in sync with the exhaust valves to keep the whole process running smoothly. They aren’t just a simple flap, though. They’ve got a pretty precise design to handle high temperatures and pressures. They’re a critical part of the engine’s head, right up there in the valve train. It's a team effort – the camshaft opens and closes them, the valve springs make sure they snap shut properly, and the inlet valve is the gatekeeper for the air and fuel. Without a properly functioning inlet valve, the engine just won't run efficiently, or maybe not at all. They’re paired with exhaust valves, working constantly throughout the engine’s operation. Well, a bad inlet valve can cause a lot of problems. You’ll notice if one fails because you'll likely have a misfire – the engine will run rough, you’ll lose power, and your check engine light will almost certainly come on. It can also lead to poor fuel economy, and if it’s leaking, it can even cause oil to get into the combustion chamber. Basically, it's a key component for keeping everything sealed up and working like it should. They take a lot of heat and stress, so they do wear out over time. If you're doing a valve job or rebuilding an engine, replacing these is just good preventative maintenance. You can find them, and a whole lot of other engine parts, over at Fixparts Online – they’re a pretty reliable source. Safe driving starts here: Inlet Valve (MPN 331158) has a 12-month warranty!

About TRW

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

Why Choose TRW?

• TRW parts are built to meet or beat the original equipment standards, so you get reliable performance. • We offer a wide range of parts – from braking and steering to suspension and engine components – covering many vehicle makes and models. • TRW has over 100 years of experience in the automotive industry, meaning we know what it takes to build quality parts. • Choosing TRW gives you peace of mind knowing you're investing in safety and dependability for your vehicle. TRW – trusted quality, available at FixParts Online!