AN6x 1/4NPS AN8x 1/4NPS Transmission Oil Cooler Adapter Fittings fit for GM Turbo 350 400 700R 4L60E Oil Cooler Fittings. Each component is precision-machined to exact tolerances for trouble-freeperformance. Transmission Oil Cooler fittings Manufactured using Aluminum alloy that meet or exceed minimum requirements for hosefittings. Water-cooled oil coolers settle into the cooling water circulation system, adjusting lubricant temperature through heat exchange with cooling water. Featuring aluminum alloy housing, front/rear covers and copper core tubing, water-cooled oil coolers add external cooling fins to further improve heat exchange and cooling effect., Manufacturer: TZOBXDP