AIRTEC Motorsport Rear Diff Cooler for Ford Focus RS Mk3
The AIRTEC Motorsport Rear Differential Cooler is a proven solution for one of the Ford Focus RS Mk3’s most well-known weaknesses—the rear diff. Excessive heat build-up often triggers warning lights and reduced performance, particularly under hard driving or track conditions. This direct-fit cooler is designed to reduce rear differential temperatures, improving reliability and consistency when you need it most.
Why Upgrade?
The Mk3 Focus RS’s rear differential has been identified as a vulnerable component from the factory. Without additional cooling, sustained spirited driving or track use can cause overheating and limp mode activation. The AIRTEC Motorsport cooler is engineered to address this issue by directing airflow into precision-designed cooling fins, significantly lowering operating temperatures.
Key Features
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Direct bolt-on fitment – uses original mounting points, with pre-drilled fixings for a fast, hassle-free installation.
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No drilling required – install with ease using the included fitting kit.
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Optimised airflow design – redirects underbody airflow directly into cooling fins for maximum efficiency.
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Choice of finishes – available in Nitrous Blue, Pro Series Satin Black, or Motorsport Satin Silver.
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Track-tested performance – ideal for RS owners who push their cars on circuit or spirited road driving.
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Registered Design Right Number: 6016419.
Benefits for Focus RS Owners
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Reduces rear diff temperatures under heavy load.
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Prevents overheating that triggers warning lights and limp mode.
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Enhances durability and reliability of the AWD system.
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Essential upgrade for track-day and performance driving.
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Retains OEM mounting points for a clean, factory-like fit.
What’s Included
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AIRTEC Motorsport rear differential cooler (finish of choice).
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Full fitting kit with all necessary hardware.
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Step-by-step installation instructions.
