AN4 PTFE hose with a nylon braided cover. AN4 suits turbo oil supply lines, oil pressure sender and gauge feeds, clutch circuits and small fuel branches. The PTFE liner handles the heat of a turbo feed without hardening and is chemically stable against oil and alcohol-blended fuels. The nylon cover makes the hose lighter and easier to thread through tight engine-bay and bulkhead routes than a bare stainless braid, and it will not chafe against heat shields, looms or nearby hoses. Keep it clear of direct exhaust contact and observe the minimum bend radius. Assemble with AN4 hose ends made for nylon-covered PTFE hose.