The factory engine oil cooler on your 2010-2018 Mercedes Benz Sprinter 2500/3500 is a liquid-to-liquid cooling unit, utilizing the engine's cooling system during warm outside temperatures and warming the coolant during cold outside temperatures. Though these designs are tried and true, they eventually wear out and fail, leading to leaking coolant into your engine coolant. Mixing coolant into your engine coolant can have catastrophic results and can cost thousands of dollars to rebuild or replace the engine. The Mishimoto Replacement Engine Oil Cooler is a direct fit to the OEM, making it easy to install and equivalent to the OEM specifications of performance. This product includes FKM gaskets, requires no modifications, and is backed by Mishimoto’s lifetime warranty. Replace your engine cooler and prevent premature failure.