TRANSMISSION SHAFT 3V1-64307-1 PAF8-04020001L

Function and technical context

The driveshaft is the critical component that transfers power from the engine to the propeller, connecting the crankshaft to the marine propulsion system. In Mercury, Mariner, MerCruiser, Parsun and Tohatsu outboard and portable engines, this shaft supports the vibrations and rotational loads of the propeller, ensuring efficient transmission of rotational force. Its correct operation is essential to maintain the cruising performance, acceleration and directional stability of the vessel; A worn or damaged shaft generates loss of power, abnormal vibrations in the hull and can compromise navigation safety.

When to replace this part?

Symptoms of driveshaft wear include persistent vibrations during acceleration, metallic noises in the tail area of the engine, progressive loss of power or difficulty reaching maximum revolutions. It is recommended to check the condition of the shaft at least once at the beginning of each boating season or every 100-150 hours of operation, especially if you are boating in silty waters or if you have been grounded. Preventive shaft replacement prevents sudden failures at sea and the risk of drifting; In addition, an axle in poor condition accelerates the wear of adjacent components such as bearings and couplings.

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers