3645 x 1. XK150 Stainless Steel over-braided, hydraulic hose for the Clutch Slave Cylinder system. This  design of armoured hose not only offers increased protection when in use, but also reduces the amount of hydraulic fluid 'swell' in the hose, giving firmer pedal pressure and greater linear displacement of brake fluid. So they are stronger and more efficient than standard, plain rubber hoses. The new spec. hoses do tend to have additional black plastic or nylon braiding protector over the metal braiding, so look near to standard. Original Number : C13968 B