Mis-Alignment Bushing - 5/8 x 1/2

The Mis-Alignment Bushing - 5/8 x 1/2 by MEZIERE is a critical drivetrain component designed for marine engines where shaft misalignment or slight runout exists between the engine and transmission coupling. Whether you're running an inboard motor, jet drive, or high-horsepower outboard conversion, this bushing absorbs minor angular and parallel misalignment that can damage precision components. Experienced boaters and marine technicians rely on quality alignment bushings to extend engine life and eliminate costly vibration-related failures at the shaft connection point.

This 5/8-inch outer diameter by 1/2-inch inner diameter elastomeric bushing fits standard marine shaft couplings and flexes under load to compensate for up to several degrees of misalignment without binding or creating harmful side loads. The compact 1.7 x 1.15 x 4.1-inch form factor integrates easily into tight engine compartments, while the featherweight 0.06-pound design adds negligible mass to your drivetrain. MEZIERE's engineering ensures the bushing material resists saltwater degradation, oil exposure, and temperature cycling—essential durability factors for both fresh and salt water applications.

Installation is straightforward for anyone comfortable with basic engine work: the bushing slides into the coupling hub and allows the shaft to float fractionally, eliminating vibration that would otherwise transmit through the vessel's structure. This product suits restoration builds, motor swaps, and maintenance on existing inboards where coupling wear has introduced play. If you're experiencing unexplained vibration at idle or cruising speed, or if your coupling shows signs of rust or pitting after years on the water, upgrading or replacing your alignment bushing is one of the most cost-effective preventive measures available to serious boaters.