Most people tend to use a 19 row oil cooler. Standard size hoses are AN8 ( - 8 , JIS 8 or 3/4 UNF )all the same just different name. Torques can supply all the fittings at a decent price if your not fussed by branded stuff (Goodridge etc..) Problem is you will spend nearly as much on hoses and fittings as you will on a cooler..