Land Rover Exhaust Manifold Gasket - Genuine Land Rover 4694621

Product Information

The exhaust manifold gasket is a component that forms a seal between the engine’s exhaust manifold and the cylinder head. The exhaust manifold is responsible for collecting exhaust gases from the engine’s cylinders and directing them into the exhaust system. The gasket’s primary function is to prevent exhaust gas leaks and ensure that exhaust gases flow smoothly into the exhaust manifold and through the exhaust system. It ensures that all exhaust gases are directed into the exhaust system rather than escaping into the engine compartment, which could lead to dangerous fumes entering the vehicle's cabin and a foul odor.

• Exhaust Leaks: A common sign of a faulty gasket is a hissing or tapping sound, especially during acceleration or when the engine is cold
• Reduced Backpressure: exhaust leaks affect the backpressure needed for efficient engine operation, leading to poor performance
• Odor: A leaking gasket may cause exhaust fumes to escape into the engine bay or even the cabin. This can lead to a noticeable, strong smell of exhaust gases (such as unburnt fuel or sulfur) inside or near the vehicle
• Overheating: A leaking gasket can allow hot exhaust gases to escape into the engine bay, potentially causing nearby components (like hoses, wires, or plastic parts) to overheat, melt, or become damaged

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.