The Konrad 620B considered the workhorse of the fleet is a dependable, robust drive. By combining Konrad’s proven, single propeller technology with strong shafts and gears, the 620B has set a new standard for stern drive durability.
INTENDED FOR MILITARY, COMMERCIAL, MEDIUM DUTY, AND RECREATIONAL PERFORMANCE THE KONRAD 620B OFFERS
* Oversized bearingsn* Thicker walled casingsn* One piece propeller shaftn* Continuous oil circulation for cool operatio* No corrosive exhaust through driven* Precision machined super alloy gearsn* No failure-prone cone clutchn* Minimal maintenance required
Standard Equipment (Supplied with Sterndrive)
* Complete sterndrive assemblyn* Ier and outer transom assemblyn* Digital trim display and Trim pump assemblyn* Oil reservoir with low level sensor for use in hulln* Drive comes full of sterndrive lubricantn* Two quarts of power trim fluidn* Transom mounted; integrated trim and steering cylinders
Additional Equipment Required
* Transmissio* Propellern* Steering packagen* Drive shafts/transmission tail piecen* Bellhousing adaptern* Flywheel couplingn* Transmission oil coolern* Alignment tool
Options for Individual Applications
* Dual Helm kitsn* Isolator Mountsn* Installation tool kitn* Extension kitsn* Tie barsn* Stand off boxesn* Technical engineering assistance
MANUFACTURING SPECIFICATIONS
BearingsnTaper roller bearings, spaced for optimum load carrying capabilities, support the shaftsCastingsnManufactured from high strength, heat treated aluminumGearsnHigh strength heat treated alloy steel utilizing high performance marine technologyShaftsnManufactured from high alloy, heat treated steelU-JointnIndustry leading size for increased load carrying capacity and extended life
OPERATIONAL SPECIFICATIONS
ApplicatioRecreational or CommercialEngine CoectioDirect or Remote (Jack or CV Shaft)ExhaustnNone through the sterndriveGear Ratios1.27:1n1.45:1n1.55:1n1.78:1n1.98:1LubricatioFull Immersion, seventeen quarts with external reservoirPropellernDiameter Range – 17.25 in – 20 in (43.8 cm – 51 cm)RotatioCounter rotatioSteering Anglen50° rangeTransmissioReversing transmission requiredTransom MountingnTemplate available per applicatioTransom Requirementsn13° angle nominal, 6.4 mm – 79.4 mm (1/4 in – 3 1/8 in) thickTrim/Lift SystemnApproximate -6° to +10° trim, twin cylinders with electrohydraulic pumpApproximate 30° of total lift rangeWater PickupnNone through the sterndrive
