This hose replaces the hose that feeds the heating system coming off the head at cylinder# 1 Underneath the air filter housing. This hose has Not been available for many years. Part # 251 265 056. This hose is sized and molded the same and lays in the same place as the original hose but is slightly shorter 4" - 6 ". Included is the hose, brass coupler and 3 stainless steel hose clamps. $20 plus shipping.