Universal 19 Row AN10 Thermostat Engine Oil Cooler Kit Application: Bolt Threaded 3/4x16UNF and M20x1.5 for most Japan car Description: The valve is shut below 70 C (158 F) and smoothly opens completely at 80 C (176 F), to insure optimal oil temperatures. Oil Cooler Kits help prolong the life of your oil and your internal engine components. Hard driving causes higher engine temperatures, Inner-fin core design increase oil capacity, decrease oil temperatures, and extend engine and oil cooler's life. Inlet / Outlet Size: 10 AN Professional Installation Highly Recommended (No Instruction Included) Include: 1pcs oil cooler 1pcs thermostat Filter adapter 2pcs oil lines (1.4m 1.6m ) Mount hardwares like picture showing.