This Koyorad radiator fits the Subaru Forester S3 2.0L turbo diesel manual with a core size of 342 by 686 by 25 millimetres, so it drops into the factory spot without drama. Dual 28 millimetre inlets and a 40 millimetre outlet line up with stock hoses, so you can swap it in and get out there again. The setup suits 2010-on Foresters that tackle long highway pulls and slow climbs with extra weight on board.

The core area spreads across 686 millimetres of width, giving plenty of surface to dump heat in Aussie summer traffic. The 25 millimetre thickness keeps airflow moving at low speeds when you are crawling gravel or sand. An integrated cooler section is built for the Forester manual configuration, keeping the layout tidy. If your old radiator is clogging or seeping, this is a smart buy to keep temps steady.

• Suits Subaru Forester S3 2.0L turbo diesel manual (2010-on)
• Koyorad replacement radiator for direct-fit cooling
• Core height measures 342 mm
• Core width measures 686 mm
• Core thickness is 25 mm for balanced airflow
• Dual 28 mm inlet connections match factory hoses
• Single 40 mm outlet sized for engine return line
• Integrated cooler section tailored to manual layout
• Designed to reuse existing mounts and fan shroud
• Ideal replacement when factory radiator is leaking or blocked

Q: Does this radiator fit automatic transmission Forester models?

No. This radiator is specified for manual transmission Subaru Forester S3 2.0L turbo diesel models only. The transmission cooler layout and fittings differ between auto and manual variants. Using the wrong unit can lead to poor line routing or clearance issues. Always match the gearbox type and engine code before ordering cooling gear.

Q: Do I need new hoses when installing this radiator?

Not necessarily. The inlet and outlet diameters match the factory hoses at 28 mm and 40 mm. If your existing hoses are in good condition, you can usually reuse them. Many owners still choose to replace old hoses while the system is drained. Fresh clamps and coolant are also good practice during a radiator swap.

Q: Is the radiator supplied with coolant or caps?

No. The radiator is supplied as a bare assembly without coolant or extra caps. You will need to source the correct coolant type for your Forester from Subaru specifications. A new radiator cap matched to the factory pressure rating is also recommended. This approach lets you pair the radiator with quality fluids suited to local temperatures.

Q: How often should I check the radiator after installation?

Check the coolant level and for any seepage within the first few heat cycles. Reinspect after your first longer drive or towing run. Hose clamps can settle as the system heats and cools, so a quick nip-up can prevent small leaks. Keeping an eye on temperature gauge behaviour in the first week is also smart practice.

Suitable for Subaru Forester S3 models with 2.0L turbo diesel engine and manual transmission from 2010-onward. Fitment is specific to vehicles that match the Sub027PACMDK radiator pattern. Reuse factory hoses, mounts and shroud if they are in serviceable condition. Professional installation is recommended to confirm correct coolant type and bleeding procedure.