Engine Oil Cooler 8.1L Marine | Volvo Penta 3808572 Volvo 8.1L Marine Engine Oil Cooler | Volvo Penta 3808572 OE Volvo engine oil cooler fits various Volvo Penta 8.1L marine engines. Volvo Penta engine oil cooler 9 in. bundle length 12 in. overall length 2 in. diameter oil cooler 1 in. water hose connections Original Volvo Penta