2025+ Streetfighter V4 Radiator Line Cooler – DC07 DBK

Thermal Mastery: DBK 2025+ Streetfighter V4 Radiator Inline Cooler

Designed specifically for the updated cooling architecture of the new Ducatis, this 2025+ Streetfighter V4 Radiator Line Cooler acts as a secondary “mini-radiator.” It is a vital upgrade for riders in warmer climates or those who push their V4 to the limit on track days.

The Desmosedici Stradale V4 engine is a marvel of engineering, but it is also a thermal furnace. In traffic or under track conditions, heat soak can lead to power loss and accelerated wear.

The DBK Special Parts Radiator Line Cooler is a tactical solution to this problem. By replacing a section of the standard rubber hose with a finned, billet aluminum heat sink, you increase the surface area of the cooling system, allowing the coolant to shed heat more effectively before it even reaches the radiator.

The “Heat Sink” Advantage

• CNC Billet Architecture: Machined from high-grade aluminum, the body of the cooler features deep internal and external longitudinal fins. These fins significantly increase the “thermal exchange” surface area.
• Passive Cooling Power: As air flows over the cooler, the fins dissipate heat into the atmosphere. This reduces the burden on the main radiators and helps the cooling fans cycle less frequently.
• Consistent Power Delivery: By maintaining a more stable operating temperature, the ECU is less likely to pull timing or reduce power to protect the engine from overheating (Heat Soak).

A Quick “Peer” insight: In terms of temperature intervals (the actual drop in heat), a 5°C reduction is actually approximately 41°F. It might sound like a small difference but  in the world of high-performance cooling, a 5°C drop in baseline operating temperature is a massive win for engine longevity and oil stability!

🛡️ Technical Specifications & Compatibility

❓FAQ: Expert Performance Insights

“Do I need to remap my ECU after installing this?”

No. This is a purely mechanical cooling upgrade. It helps the engine stay within its optimal “power window,” but it does not change the fuel mapping or air-to-fuel ratios.

“How difficult is the installation?”

It is a straightforward Plug & Play install. However, because you are breaking into the coolant line, you will need to perform a partial coolant drain and a proper system “burping” procedure afterward to ensure no air pockets remain in the V4’s complex cooling circuit.

“Is this better than a radiator guard?”

They serve different purposes. A radiator guard protects against debris; the Line Cooler actively reduces fluid temperatures. For the ultimate setup, we recommend using both to ensure your cooling system is both protected and optimized.

Peer Insight: If you’re planning on doing a coolant flush to install this, I highly recommend switching to a high-performance coolant like Engine Ice or MoCool at the same time. Combining the DBK Radiator Line Cooler with a superior thermal fluid is the “cheat code” for keeping the V4 running cool in 100-degree weather.

Installation instructions/DC07