Allow quick-and-easy access to oil supply for any oil cooler installation Advanced design allows hot oil to go through the oil filter before it is routed through the oil cooler, resulting in less overall restriction and pressure drop PART #0713-0031 features an integrated automatic thermostatic actuator to ensure rapid engine warm-up Anti-rotation kits (sold separately) ensure that the oil filter adapters PART #S J4600 and 0713-0031 cannot rotate during oil filter removal PART #0713-0050 upgrade nut is designed to replace the stock threaded oil filter mounting stem on applications where stem is too long, to ensure proper oil flow characteristics when installing adapter PART #J4400 Made in the U.S.A.