COILED AIR SET LINE ASSEMBLY RED & BLUE TRUCK TRAILER BRAKE COIL SET, 15' LENGTH; 1 X 12" & 1 X 40" LEADS. Fasttech is a global sourcing and manufacturing group that is dedicated to delivering high quality products and services. At Fasttech we know what life on the road is like, therefore our goal is to support YOU, the drivers and fleet owners with excellent aftermarket replacement parts at unprecedented low prices. YOU move North America and without YOU we all go nowhere!