Dual-Pass Heat Sink Cool er 18in Black Anodized

The Dual-Pass Heat Sink Cooler 18in Black Anodized by DERALE is engineered for serious enthusiasts and mechanics who demand reliable thermal management in high-performance automotive applications. Whether you're running a modified street car, a track-focused build, or a daily driver pushing elevated engine loads, this compact cooler addresses the critical need for efficient heat dissipation when factory cooling capacity falls short. DERALE's reputation for precision cooling solutions makes this 18-inch unit an industry-trusted choice for custom cooling circuits, auxiliary transmission coolers, and engine oil temperature control.

The dual-pass design is the technical foundation that sets this cooler apart—fluid enters one core section, reverses direction within the internal manifold, and exits through a second pass, maximizing contact time between the hot fluid and the aluminum cooling fins. This dual-path flow pattern dramatically improves heat transfer efficiency compared to single-pass designs, allowing you to maintain tighter operating temperatures even under sustained load. The black anodized aluminum construction provides corrosion resistance and a finished appearance, while the compact 4.7 x 4.5-inch face profile permits flexible mounting in tight engine bay layouts where traditional oversized coolers won't fit. Weighing just over 3 lbs, it adds minimal mass while delivering serious thermal performance.

This cooler is ideal for custom transmission loops, differential oil systems, and turbo intercooler applications where you need responsive temperature control without sacrificing installation flexibility. Mechanics integrating this unit into modified cooling circuits appreciate the 18-inch length—long enough for substantial heat exchange, yet short enough to fit alongside engine components and radiator shrouds. Installation requires minimal fabrication in most cases; the dual-pass 18-inch configuration pairs seamlessly with standard hose barb fittings and aftermarket line kits. For any enthusiast committed to sustained performance and longevity, this DERALE cooler delivers the engineering precision and reliability expected from a market-leading thermal management brand.