Land Rover Discovery Radiator: Specs, Fitment & Common Faults

A genuinely important finding: newer models don't have a dedicated warning light for a slow coolant leak, meaning it can go unnoticed until the engine actually overheats — plus an alarming warning that a damaged fan blade can explode with enough force to go through the bonnet.

Illustration for editorial purposes

OEM Part Numbers

Accuracy note: genuinely worth knowing: coolant capacity and radiator sizing on the Discovery tend to track engine displacement and power output closely — a part correct for a smaller-engined version of the same model can undersize the cooling for a larger-engined one.

The Part That Keeps Everything Else From Cooking

Nothing about this component is glamorous, but almost every serious engine failure that isn't wear-related traces back to a cooling system problem left unaddressed. Catching the early signs here is genuinely cheap insurance against a much bigger bill.

Before you buy: radiator size and design vary significantly by engine size, transmission type, and whether your car has air conditioning. Always confirm against your VIN before ordering.

What It Does

The radiator transfers heat from the engine coolant to the surrounding air, keeping engine temperature within a safe operating range. On automatic versions, it often also cools transmission fluid through a separate internal circuit — one more reason the correct part number matters so much here.

Land Rover Discovery Radiator reference plate

Fitment & Compatibility

Radiators differ between manual and automatic versions of the Discovery due to the transmission cooling circuit, and again across different generations. A radiator designed for a manual gearbox car will not correctly cool an automatic's transmission fluid even if it physically fits the mounting points. Always confirm the exact part number for your specific engine and transmission combination. Whether you're sourcing a replacement radiator for your Land Rover Discovery from a dealer, specialist, or online marketplace, always check compatibility against your registration or VIN before buying.

A Genuinely Important Finding Worth Knowing About Slow Leaks

This is genuinely important to know: a slow coolant leak has been documented as a particular problem specifically on newer Discovery models, since these don't have a dedicated warning light for gradually dropping coolant levels the way some other models do. This means a slow leak can continue completely unnoticed until the level drops low enough for the engine to actually overheat — worth checking the coolant level visually and manually on a regular basis, rather than relying solely on a dashboard warning to alert you to a developing problem.

A genuinely alarming finding worth knowing: a damaged plastic cooling fan blade, even with just a small crack or chip, has been documented exploding with enough force to go straight through the bonnet in some cases. Even short of that extreme, a damaged blade causes a heavy vibration capable of ruining an otherwise good water pump in under 100 miles of driving — worth inspecting the fan blades closely for any damage whenever the bonnet is open.

It's also genuinely worth knowing that the correct coolant type has varied by model year and specific VIN range over time, worth confirming exactly which type your specific car requires before topping up, since mixing incompatible coolant types can itself cause problems within the system.

Faults, DIY Difficulty & Aftermarket Advice

These are the same regardless of make or model — see our full Radiator Guide for the three common failure modes, how difficult this job is to DIY, and OEM vs aftermarket guidance.

More Land Rover Radiator

The same part, covered across other Land Rover models.