MULTI-D STAINLESS STEEL PROPELLER.NEW SATURN 13X21 RIGHT

Function and technical context

This New Saturn Multi-D stainless steel propeller, with a diameter of 13 inches and a pitch of 21, works in the outboard propulsion system, transmitting the engine's power to the water to propel the boat. Made of stainless steel, it offers superior resistance to marine corrosion and greater impact durability compared to aluminum propellers, making it especially suitable for intensive use in saltwater. Right turn (clockwise as seen from the stern) is the standard in most single-engine installations, guaranteeing the correct direction of thrust and steering stability. Wear or damage to the blades causes a direct loss of performance, increased fuel consumption and possible vibrations in the tail shaft that can damage bearings and seals if not attended to in time.

When to replace this part?

The most common symptoms that indicate the need to change the propeller are: notable loss of top speed or maximum speed, abnormal vibrations at different revolutions, excessive cavitation, bent blades or blades with visible nicks after an impact with submerged objects, and slipping of the propeller on the shaft when the safety cap no longer absorbs shocks effectively. It is recommended to visually inspect the blades at each beaching or seasonal maintenance, verifying that they do not present deformations or advanced erosion on the leading edges. Replacing the propeller preventively in the event of any structural damage prevents transmitted vibrations from deteriorating other drivetrain components, which can result in considerably more expensive repairs.