Car Parts Guide
RADIATOR Land Rover Discovery · PARTS GUIDE

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 of a radiator Illustration for editorial purposes
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OEM Part Number: FPLA8005AB (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators Nissens 606799 / NRF 550391

Accuracy note: Covers the Land Rover Discovery (Discovery 5 2017-) as listed in the UK aftermarket catalogues. Radiators are sold by engine, gearbox and air-conditioning fitment, and one model usually has two or three different cores — a thicker core for diesels and automatics, a thinner one for small petrols — with different hose positions, so a radiator for the wrong engine will not connect up. The references below are UK aftermarket listings whose fitment lists name this generation, labelled by brand with the core size in mm; genuine numbers are those quoted against the listing. Check your engine code and whether the car has air conditioning against your VIN, and replace the coolant and bleed the system after fitting.
Radiators (aftermarket)Nissens 606799 (580 x 734 x 26 mm, aluminium soldered core, plastic tanks, 3.0 TDV6/SDV6 diesel 211, 249, 258 and 306 PS, engine code 306DT); Van Wezel 02012708; NRF 550391; Thermotec D7I011TT; AKS Dasis 020081N; AHE 142.039.
Core sizes & variantsThis radiator covers every 3.0 V6 diesel Discovery 5 and is shared with the Range Rover L405 3.0 diesel. The 2.0 Ingenium four-cylinder (Sd4 and Si4) and the 3.0 petrol take different radiators that were not confirmed here.
Genuine (OE) numbers quotedLR062425; FPLA8005AB; FPLA8005AC; LR162114
Fitment notesSupplied with seals; inlet and outlet are 38.5 mm. The 3.0 diesel also has a separate low-temperature charge-air cooler radiator, so make sure the main engine radiator is the part needed.
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.

Land Rover Discovery Radiator: The Part That Keeps Everything Else From Cooking

Unglamorous as it is, the Land Rover Discovery's cooling system sits behind nearly every serious engine failure that isn't just ordinary wear — and one that went unaddressed for too long. Noticing early warning signs here is a small cost against a potentially very large one.

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.

Land Rover Discovery Radiator: What It Does

On the Land Rover Discovery, engine coolant sheds its heat into the passing air via the radiator, which is what keeps engine temperature in a safe working range. On automatics, it frequently pulls double duty cooling the transmission fluid through its own internal circuit — a detail that makes getting the exact part number right especially important.

Land Rover Discovery Radiator: Watch: Replacing It

🎬 Watch: How to Upgrade Your Discovery 5 Cooling System with Aluminum Components

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Aftermarket aluminium cooling pack install on the D5, shows radiator out and in; the only generic "Discovery radiator removal" hit is an older model.

Land Rover Discovery Radiator reference plate
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A Genuinely Important Finding Worth Knowing About Slow Leaks — Land Rover Discovery Radiator

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.

Land Rover Discovery Radiator: 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, confirming fitment against your VIN, and OEM vs aftermarket guidance.

More Land Rover Radiator

The same part, covered across other Land Rover models.