4 Hose kit includes.
(RF1-BLACK) = Water manifold to heater matrix.
(RF2-BLACK) = Bottom rad hose to heater matrix.
(RF3-BLACK) = Radiator to water manifold.
(RF6-BLACK) = Bottom rad hose to water pump.
Fits Silver Top engine with Retroford copper rad (Z010).
Will fit other radiators. See Attached Photo.