Vauxhall Zafira Tourer Radiator: Specs, Fitment & Common Faults

A failing expansion tank cap seal is a well-documented, often-overlooked cause of coolant loss on the Zafira Tourer — worth checking first.

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OEM Part Number: 13267662 (as quoted in catalogue listings — confirm via VIN) — aftermarket radiators Nissens 630763 / Denso DRM20047

Accuracy note: Covers the Vauxhall Zafira Tourer (C 2011-2018) 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)	Nissens 630763 (680 x 398 x 26 mm, aluminium core with plastic tanks, fits all 1.6 CDTi and 2.0 CDTi diesels including the BiTurbo); Denso DRM20047; Mahle CR 1697 000S; NRF 59281; Van Wezel 37002683; Ava OL2683 / OLA2488; Magneti Marelli 350213206500; Prasco OP418R001. For the 1.6 Turbo petrol (A16XHT, B16SHL, D16SHL, D16SHJ): Nissens 630762 (665 x 389 x 26 mm, with integral oil cooler)
Core sizes & variants	Diesel Zafira Tourers use a 680 mm long core without oil cooler; the 1.6 SIDI turbo petrol takes a slightly smaller 665 mm core with a built-in oil cooler. The 1.4 Turbo and 1.8 petrol models use a third radiator shared with the Astra J, not covered by these two.
Genuine (OE) numbers quoted	13267662; 13312812; 13336887; 13393983; 39074655; 39074656; 39074664 (diesel); 13393984; 39074654; 1300338 (1.6 Turbo petrol)
Fitment notes	Both radiators have one 34 mm and one 38.5 mm connection and are supplied with seals.

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

A Genuinely Overlooked Cause of Coolant Loss Worth Checking First — Vauxhall Zafira Tourer Radiator

If coolant keeps disappearing with no visible leak underneath the car, it's genuinely worth checking the expansion tank cap itself before assuming a more expensive fault. A failing seal in the cap is a well-documented, commonly overlooked cause of coolant loss and a hissing sound once the engine's hot — and it's often overlooked in favour of investigating the thermostat or head gasket first, even though it's a genuinely cheap part to simply replace and rule out.

A genuinely useful filling technique: air pockets trapped in the cooling system during a refill are a common, underappreciated cause of overheating symptoms and a coolant level that seems to disappear — filling too quickly is the usual cause. Adding coolant slowly, almost dribbling it in, gives trapped air a proper chance to escape rather than getting sealed into a pocket that later causes symptoms that look exactly like a leak or failing thermostat.

Vauxhall Zafira Tourer Radiator: The Part That Keeps Everything Else From Cooking

There's nothing exciting about this component, yet on the Vauxhall Zafira Tourer, 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.

Vauxhall Zafira Tourer Radiator: Watch: Replacing It

🎬 Watch: Opel Zafira A Radiator replacement (older gen)

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Zafira A; Zafira C hits were coolant housing and expansion tank only

Vauxhall Zafira Tourer Radiator reference plate

Vauxhall Zafira Tourer Radiator: What It Does

The Vauxhall Zafira Tourer 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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Vauxhall Zafira Tourer 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 Vauxhall Radiator

The same part, covered across other Vauxhall models.