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 propellers
• Continuous oil circulation for cool operation
• No corrosive exhaust through drive
• Precision machined super alloy gears
• No failure-prone cone clutch
• Minimal maintenance required

Standard Equipment (Supplied with Sterndrive)

• Complete sterndrive assembly
• Inner and outer transom assembly
• Digital trim display and Trim pump assembly
• Oil reservoir with low level sensor for use in hull
• Drive comes full of sterndrive lubricant
• Two quarts of power trim fluid
• Transom mounted; integrated trim and steering cylinders

Additional Equipment Required

• Transmission
• Propeller
• Steering package
•  Drive shafts/transmission tail piece
• Bellhousing adapter
• Flywheel coupling
• Transmission oil cooler
• Alignment tool

Options for Individual Applications

• Dual Helm kits
• Isolator Mounts
• Installation tool kit
• Extension kits
• Tie bars
• Stand off boxes
• Technical engineering assistance

MANUFACTURING SPECIFICATIONS

• Bearings : Taper roller bearings, spaced for optimum load carrying capabilities, support the shafts
• Castings : Manufactured from high strength, heat treated aluminum
• Gears : High strength heat treated alloy steel utilizing high performance marine technology
• Shafts : Manufactured from high alloy, heat treated steel
• U-Joint : Industry leading size for increased load carrying capacity and extended life

OPERATIONAL SPECIFICATIONS

• Application : Recreational or Commercial
• Engine Connection : Direct or Remote (Jack or CV Shaft)
• Exhaust : None through the sterndrive
• Gear Ratios : 1.23:1 1.31:1 1.50:1 1.67:1
• Lubrication : Full Immersion, seventeen quarts with external reservoir
• Propeller : Diameter Range - 13.25 in - 16 in (33.7 cm - 40.6 cm)
• Rotation : Counter rotation
• Steering Angle : 50° range
• Transmission : Reversing transmission required
• Transom Mounting : Template available per application
• Transom Requirements : 13° angle nominal, 6.4 mm - 79.4 mm (1/4 in - 3 1/8 in) thick
• Trim/Lift System : Approximate -6° to +10° trim, twin cylinders with electrohydraulic pump
• Approximate 30° of total lift range
• Water Pickup : None through the sterndrive