UP28R Rear Mount Helm 1.7 cu. 3/4 Tapered Stainless Steel ShaftFeatures:Available in four different displacement sizesCompact designBall bearing piston raceBuilt-in lock valve for positive rudder lockIntegral relief valve for over-pressure protection3/4" tapered stainless steel shaftEasily accessible lock valve and shaft seal for replacementCast iron cylinder rotor for greater durability and longer life1/4 NPT fitting for 3/8 tubeIncludes 90Adeg adjustable fittings for 3/8" tube and white bezelUP45R pump is ideal for double cylinder outboard applicationsUP45 pump is available also for inboard applicationX68 (optional) - 40894Z Chrome bezelKITF (optional) - 39664Y Remote fill adapterSpecifications:Mounting: Retro-cruscottoDisplacement/Revolution: 28 cc-1.7 cu in# of Pistons: 5Relief Valve Setting: 70 Bar - 1000 PSIMaximum Wheel Diameter: 710mm - 28Weight: 5kg - 11 lbs.