oil preheater heat exchanger 3d model

A realistic automotive engine bay with a compact industrial oil preheater heat exchanger installed near the exhaust manifold. The device is a vertical cylindrical shell-and-tube heat exchanger made of brushed stainless steel, with multiple internal parallel tubes visible through partial cutaway. Two oil pipes (inlet and outlet) are connected at the top and bottom of the unit, leading to the engine lubrication system. The exhaust pipe runs through a separate outer chamber of the heat exchanger, transferring heat indirectly (no mixing of fluids). The unit is mounted with metal brackets near the air filter housing. Surrounding components include engine block, air filter box, hoses, clamps, and wiring. The exhaust section shows slight heat discoloration (blue/brown tint). Materials look realistic: metallic reflections, bolts, seals, and joints clearly visible. Lighting is natural and slightly dramatic, like a professional automotive photo. High detail, photorealistic rendering, shallow d