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

On the HR-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: 19010-51T-G01 (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators NRF 550196

Accuracy note: Covers the Honda HR-V (2015-) 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)	Van Wezel (Van Wezel group) 25012708 (669 x 375 x 16 mm, aluminium core with plastic tanks; NRF 550196; AKS Dasis 100102N
Core sizes & variants	Confirm core size and hose positions against the old radiator
Genuine (OE) numbers quoted	19010-51T-G01
Fitment notes	Listed as not available at the time of writing, so the NRF 550196 equivalent is the practical choice

Accuracy note: genuinely worth knowing: automatic gearbox HR-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 HR-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 HR-V Radiator: The Part That Keeps Everything Else From Cooking

Unglamorous as it is, the Honda HR-V'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.

Honda HR-V Radiator: Watch: Replacing It

🎬 Watch: How To Replace A Radiator On A Honda (sister (honda, model not named))

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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 HR-V Radiator: What It Does

On the Honda HR-V, 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.

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Honda HR-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.