520 Installation/Operational Specifications 

Application
Recreational or Commercial

Engine Drive Shaft
Mounting flange available for several types of transmissions

Exhaust
None through the sterndrive

Gear Ratios
1.43:1, 1.57:1, 1.79:1, 2.0:1

Lubrication

Full immersion, seven quarts with external reservoir

Propeller

Up to 508 mm (20 in) diameter

Rotation

Operates in either right or left hand rotation

Steering Angle

40o range

Torque Rating
Up to 1000 Nm (738 lb.ft.) input for recreational, lower for commercial applications

Torsional Coupling

Optional compact torsional coupling design reduces vibrations for quieter performance

Transmission
Reversing transmission required

Transom Mounting

Template available

Transom Requirements

14o angle nominal, 6.4 mm - 57.2 mm (1/4 in - 21/4 in) thick

Trim/Lift System

Approximate -6o to +10o trim, twin cylinders with electrohydraulic pump
Approximate 40o of total lift range

Warranty
Standard Warranty

Water Pickup

None through the sterndrive