This Airtec aluminium radiator upgrade for the Ford Focus ST and RS Mk2 is designed to address the well-known weakness of the standard cooling system. Thanks to its large 40mm core, this radiator offers significantly better cooling and stability, particularly during sporty driving and track use.
The all-aluminium construction and improved airflow ensure lower coolant temperatures and more reliable performance, even under higher loads and with engine tuning.
Benefits
• 40mm core (larger than the OEM 30mm)
• Reduces coolant temperature by
10–15°C• Ideal for fast road and track
use• All-aluminium
construction• Welded end tanks (no leaks as with OEM)
• Improved durability on tuned engines•
Compatible with aftermarket
intercoolers• OEM fans fit straight away
Technical specifications
• Material:
all-aluminium• Core thickness:
40mm• OEM radiator core:
30mm• Welded aluminium end tanks•
Adjustable billet lower locating pegs•
CNC-machined mounting blocks for air-conditioning radiator
Compatibility
• Ford Focus ST
Mk2• Ford Focus RS Mk2
Important information
• Choice required: Focus ST or Focus RS variant•
Compatible with aftermarket intercoolers (Airtec, Radtec, Pace, Pro-Alloy)
• Suitable for both standard and high-performance builds
Contents
• Airtec aluminium
radiator• Adjustable billet
mounting pins• Fixing hardware
Frequently asked questions
What is the advantage over the OEM radiator?
Better cooling, greater reliability and no risk of leaking plastic end tanks.
Is this compatible with standard parts?
Yes, OEM fans and the air-con radiator fit straight away.
Is this suitable for tuned engines?
Yes, particularly recommended for higher power outputs and track use.
Is it difficult to fit?
No, it’s a direct replacement with an improved fit thanks to the adjustable mounting.
