This is a Lockhart engine oil cooler that I grafted into the air scoop or shroud of my XR650L. The total cost of my engine oil cooler project was less than $50, which includes a Lockhart oil cooler at $40, 3/8" oil tubing at $6, and 4 hose clamps at $3. I had the louvers and everything else used in the modification.

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Credits: Submitted by ThumperTDC to our "Trickest Mod" Contest, and edited by 4Strokes.com.