Silicone Hose Ford Ranger and Mazda BT-50 Cold Side. Factory direct OEM replacement, 6mm hose thickness, 5ply, red Fluorosilicone lining, 1mm thickness red FMVQ Fluorosilicone lining provides greater resistance to oil mist. Stable operating temp from -50C to +200C, 4:1 burst pressures at safe working loads. Black Stainless Steel hose clamps.