SVHO 1.8L MODELS! DOES NOT FIT SHO MODELS. Solas Stainless Steel. 100% Genuine RIVA 160mm Race Pump. Blowsion pump spacer PART #4809-0220; required to use with OEM Yamaha reduction nozzle when installing the Solas 144mm pump PART # 4809-0199YVS-SV-160/74.