Mercury – Hydro Surge Kit – 856627T3

Restore your propeller system’s efficiency with the Mercury Hydro Surge Kit – 856627T3. This OEM replacement kit includes all necessary components to replace the worn or damaged inner hub system in select Mercury propellers. Designed to absorb shock and reduce gearcase stress during sudden impacts, the hydro surge design helps protect your drivetrain while maintaining performance and handling.

Key Features

Genuine OEM Quality – Manufactured to Mercury’s strict standards for reliable fit and long-term use

Shock-Absorbing Hub System – Designed to reduce the risk of damage from submerged object strikes

Complete Kit – Includes the necessary components for a smooth and hassle-free installation

Optimized Propeller Function – Restores smooth acceleration, shifting, and vibration dampening

Corrosion-Resistant Build – Withstands harsh marine environments including saltwater

Compatibility

The Mercury 856627T3 Hydro Surge Kit is compatible with select Mercury and MerCruiser propellers that use the hydro surge design. Always refer to your propeller model or contact PartsVu to confirm proper fitment before purchasing.

Ideal Use Cases

Replacing damaged or worn surge hubs in Mercury props

Reducing engine vibration and gearcase shock during operation

Maintaining peak performance and drive protection

Restoring reliable shifting and acceleration

Why Protection Matters

Prop strikes and sudden gear changes can exert intense pressure on your propeller system. The Mercury Hydro Surge Kit – 856627T3 helps safeguard your gearcase by absorbing and dissipating shock loads, reducing wear and minimizing the risk of costly repairs. Keeping your hub in top condition is essential for a smooth, responsive ride and long-term engine health.

Frequently Asked Questions

What’s included in the kit?

The kit includes a replacement hydro surge hub and associated hardware necessary for installation.

How do I know when it’s time to replace the hub?

Signs include increased vibration, slipping during acceleration, or damage after impact with debris or shallow areas.