Honda CR-V Radiator: Specs, Fitment & Common Faults

On the CR-V, using the wrong coolant type can genuinely cause corrosion — plus a tricky DIY trap where the heater pipe can feel seated when it isn't.

Illustration for editorial purposes

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OEM Part Number: 19010R6FG01 (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators Valeo 701443 / Denso DRM40052

Accuracy note: Covers the Honda CR-V (2012-2018) 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)	Valeo 701443; NRF 59234; Van Wezel 25012704; Ava HD2307; Hella 8MK 366 311-911. Denso DRM40052; Mahle CR 2648 000S; NRF 59233; Van Wezel 25012702
Core sizes & variants	Confirm core size and hose positions against the old radiator
Genuine (OE) numbers quoted	19010R6FG01; 19010R6FG51 (2.0 petrol)
Fitment notes	Both radiators have 32 mm connections and are supplied with a filler cap; the diesel unit also comes with seals.

Accuracy note: genuinely worth knowing: automatic gearbox CR-Vs typically need a radiator with a built-in transmission oil cooler that manual versions don't have — ordering the manual-spec part for an automatic car will fit, but won't cool the gearbox oil properly.

A Genuinely Important Warning Worth Knowing About Coolant Type — Honda CR-V Radiator

If you're topping up or refilling the cooling system, this is genuinely worth taking seriously: using the wrong type of coolant — genuinely the wrong chemical formulation for your specific engine — has been documented as a real, direct cause of internal corrosion. Always confirm the correct coolant specification for your specific engine before topping up.

A genuinely specific, tricky DIY installation trap worth knowing about the thermostat housing: the heater pipe that connects into the housing has a small amount of natural play, and can feel seated when it genuinely isn't pushed in fully. One documented case saw a leak develop specifically at this junction after reassembly, traced to the pipe not being seated all the way in.

It's also worth knowing that a combination of elevated idle speed and rapid overheating shortly after thermostat work often points toward trapped air in the cooling system rather than a genuine new leak.

Honda CR-V Radiator: The Part That Keeps Everything Else From Cooking

It's an unglamorous part, but on the Honda CR-V, the cooling system is behind almost every serious non-wear engine failure that could have been prevented. Spotting trouble here early is about as cheap an insurance policy as exists against a genuinely expensive repair bill.

Honda CR-V Radiator: Watch: Replacing It

🎬 Watch: Honda CRV 2012-2016 4th gen Radiator Replacement (steps in description)

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Fourth-gen CR-V

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.

Honda CR-V Radiator: What It Does

On the Honda CR-V, heat from the engine coolant is shed to the surrounding air through the radiator, keeping engine temperature in a safe range. On automatic gearboxes, it often doubles up, cooling transmission fluid through a separate internal circuit too — which is why getting the exact part number right matters more here than on a simple heat exchanger.

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Honda CR-V 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 Honda Radiator

The same part, covered across other Honda models.