DKSI Vehicle heating, cooling, parts and more. Fuel fired air heaters, coolant heaters and replacement parts for all types of vehicles and installations. From long-haul trucks to boats, RV’s, and vans we’ve got your heating needs covered. Genuine Espar & Webasto Replacement parts. Autoply Automotive Insulation Kits are high-quality pre-cut and bulk insulation for vehicle upfitters, body builders, OEMs, and diy’s. The ColdCrate is an advanced and easy-to-use refrigeration unit that provides transport professionals with a new way to ship and store temperature-controlled products. Perfect for use in any industry, the ColdCrate from DKSI is a cost-effective and environmentally friendly solution to all your mobile refrigeration needs. Oil Changes Made EASY. The EZ Oil Drain Valve replaces the standard oil drain plug, making oil changes easier, saving valuable time and expenses.