... , Diesel engine model: Z170F/4HP/2600rpmWater pump model: 3 inch (B80-80-125Z)2, Diesel engine model: Z175F/5HP/2600rpmWater pump model ... : 3 inch (B80-80-125Z) or 4 inch (B100-100-125Z)3, Diesel engine ... model: R170A/4HP/2600rpmWater pump model: 3 inch (B80-80-125Z)4, Diesel engine model: ZR175/6HP/2600rpmWater pump model ...