March 12, 2025
When it comes to maintaining or upgrading your boat's outboard motor, one crucial measurement you'll need is the shaft length. The shaft length of an outboard motor determines how deep the motor sits in the water and plays a critical role in ensuring your boat performs efficiently. Whether you're replacing a propeller, installing a new motor, or adjusting your boat’s setup, knowing how to measure the outboard motor shaft size is key to making sure everything fits correctly. Mercury, Yamaha, Suzuki, and all other outboard brands fit the same criteria for measuring.