Land Rover Engine Exhaust Valve - Genuine Land Rover LR134473

Product Information

An engine exhaust valve is a component inside the cylinder head that controls the release of burned gases from the combustion chamber after the air-fuel mixture has been ignited. It works in tandem with the intake valve, which allows fresh air and fuel into the cylinder. Exhaust valves are typically made of heat-resistant steel to withstand high temperatures and pressure.

• Poor Engine Performance / Power Loss: Incomplete exhaust evacuation reduces cylinder efficiency.
• Engine Misfires: Burned, bent, or leaking valves can cause misfires or rough idle.
• Excessive Smoke from Exhaust: White, blue, or black smoke may result from oil burning or improper combustion.

About Genuine Land Rover

The same parts Land Rover used to build your vehicle are sold as replacement parts under the “Genuine Land Rover” brand. These are manufactured under Land Rover’s direction, guaranteeing top quality. As you’d expect, they also carry a premium price and are sold exclusively through the Land Rover dealership network.

Genuine Land Rover parts trace their origins back to the earliest days of the brand in 1948, when Rover engineers built the first Series I using robust, serviceable components designed for durability in harsh environments. Over the decades, Land Rover established partnerships with leading European suppliers to ensure consistent quality and performance. This tradition continues today, with Genuine Land Rover parts representing the official replacement components engineered to the same specifications as those used on the production line.

What many owners don’t realize is that Land Rover doesn’t manufacture most of these parts themselves. Instead, they design the components, contract trusted suppliers to produce them, and then verify the quality. Many of these suppliers have partnered with Land Rover for decades. In the industry, they’re known as OEMs (Original Equipment Manufacturers)—brands you probably recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. It’s not unusual to open a Genuine Land Rover box and find one of these brands inside—just re-badged with a Land Rover logo.

On our site, look for OE tags on product pages to quickly spot parts that come straight from the original manufacturers. Choosing these can save you a significant amount compared to buying them in Genuine packaging. For more details on how to identify OE and OEM parts, check out our OE Academy.