The Konrad 660B is well known for fast performance driven applications, such as extreme government patrol and military intercept. The 660B is built to meet the demand for speed and precision. Designed for 7-15 meter (23-50 foot) vessels seeking speeds up to 60 knots (70 mph):

Intended for military, commercial, medium duty, and recreational performance the konrad 660b offers

  • Oversized bearings
  • Thicker walled casings
  • Dual, counter rotating propeller
  • Continuous oil circulation for cool operation
  • No corrosive exhaust through drive
  • Precision machined super alloy gears
  • No failure-prone cone clutch
  • Minimal maintenance required
ApplicationRecreational or Commercial
Recreational or CommercialDirect or Remote (Jack or CV Shaft)
ExhaustNone through the sterndrive
Gear Ratios1.07:1, 1.23:1, 1.31:1, 1.50:1, 1.67:1
LubricationFull Immersion, seventeen quarts with external reservoir
PropellerDiameter Range 33.7 cm – 40.6 cm
RotationCounter rotation
Steering Angle50° range
TransmissionReversing transmission required
Transom MountingTemplate available per application
Transom Requirements13° angle nominal, 6.4 mm – 79.4 mm thick
Trim/Lift SystemApproximate -6° to +10° trim, twin cylinders with electrohydraulic pump Approximate 30° of total lift range
Water PickupNone through the sterndrive