Ford Kuga Radiator: Specs, Fitment & Common Faults

A confirmed UK recall covers coolant leak risk on certain Kugas — here's how to check your car, plus the wider EcoBoost issue behind it.

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OEM Part Number: 6G918005GB (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators Nissens 66863 / Valeo 735373

Accuracy note: Covers the Ford Kuga (Mk2 2013-2019) 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 66863 (670 x 448 x 26 mm, aluminium core with plastic tanks, fits 2.0 TDCi 115/136/140/150/163 and 1.6 EcoBoost 150/182); Nissens 66862 (670 x 449 x 26 mm, aluminium core with plastic tanks, fits 1.6 EcoBoost 150/179/182 only); Valeo 735373; NRF 59326 and 550045; Van Wezel 18012707; Hella 8MK 366 310-611; Mahle CR 815 000S.
Core sizes & variants	Both radiators share the same 670 x 448 mm core and 38.5 mm connections, with the 66863 (OE 1786806) listed for all 2.0 TDCi diesels and the 1.6 EcoBoost, and the 66862 (OE 1786804) listed for the 1.6 EcoBoost petrol only.
Genuine (OE) numbers quoted	1786806; 6G918005GB; 1786804; CV618005EA
Fitment notes	Both are supplied with gaskets and seals, and the 66862 also comes with a sealing lid. Later facelift cars should be checked against the VIN before ordering.

Accuracy note: genuinely worth knowing: radiator hose connection points and mounting brackets on the Kuga can differ subtly between facelifted and pre-facelift versions of the same generation, even when the core itself is unchanged.

Confirmed: A Genuine UK Recall Covering Coolant Leaks on Certain Kugas — Ford Kuga Radiator

Worth checking directly against your registration: Ford issued a UK recall (reference R/2020/089, 2020) specifically covering certain Kuga models for a potential coolant leak that could lead to engine overheating. If you're looking at a used Kuga from the relevant production window, confirming this recall work has been completed is a genuine priority rather than a nice-to-have — check via the official DVSA recall checker using your registration number, since the absence of an open recall on your specific car doesn't rule out the wider degas bottle and coolant hose issues discussed below, which affected the 1.0 EcoBoost range more broadly.

Broader context worth knowing: across the 1.0 EcoBoost family generally (primarily 2012-2017 production), the plastic degas bottle (coolant reservoir) and its connecting hoses have a well-documented tendency to develop hairline cracks as the plastic ages and heat-cycles over years of use — serious enough that a UK Parliament transport committee document specifically references "failure of the degas pipe affecting 1.0L Fox engines" as a known issue Ford was asked to address. Watch for dropping coolant levels requiring more than one top-up between services, a sweet smell from the engine bay, or white smoke from the exhaust on starting — all worth investigating promptly rather than simply topping up and continuing.

Ford Kuga Radiator: The Part That Keeps Everything Else From Cooking

There's nothing exciting about this component, yet on the Ford Kuga, most catastrophic engine failures that aren't simply down to wear trace back to a cooling problem someone ignored too long. Catching it early is cheap; catching it late usually isn't.

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.

Ford Kuga Radiator: Watch: Replacing It

🎬 Watch: How to Replace Radiator 2013-2019 Ford Escape 2.0L L4 (sister (ford escape))

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Escape is the US-market Kuga Mk2; 1A Auto step-by-step. Russian Kuga rad video 2zFLuAm8D3M also found

Ford Kuga Radiator: What It Does

The Ford Kuga radiator's core job is moving heat out of the engine coolant and into the passing air, holding engine temperature within safe limits. Automatic versions frequently add a second internal circuit for transmission fluid cooling, which is exactly why the correct part number carries extra weight on this component.

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Ford Kuga 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 Ford Radiator

The same part, covered across other Ford models.