Propeller Parts & Accessories

What Are Propeller Parts & Accessories?

A marine propeller is only as reliable as the components that support it. Propeller parts and accessories encompass everything beyond the prop blades themselves — hub kits, thrust washers, prop hardware, spline bushings, rubber cushion hubs, and installation hardware. These components work together to transfer engine power cleanly to the prop shaft, absorb impact shock, protect your lower unit from damage, and ensure the propeller seats and spins correctly. Whether you're replacing a worn-out hub after a hard season, rebuilding after a strike, or setting up a new outboard, having the right supporting hardware is just as critical as selecting the right propeller.

Why Propeller Hardware Matters

Many boaters focus solely on propeller selection and overlook the hardware that holds everything together. A failing or incorrect hub kit can cause prop spin — where the hub slips under load instead of transferring power — robbing you of performance and potentially damaging your gearcase. Thrust washers keep the prop correctly positioned on the shaft, while rubber or polymer cushion hubs absorb the shock of sudden throttle changes, groundings, or debris strikes, acting as a sacrificial buffer that protects the far more expensive lower unit. Investing in quality propeller accessories is smart preventive maintenance for any boater.

Key Components to Know

• Hub Kits: The inner assembly that connects a propeller to the engine shaft. Interchangeable hub systems let you reuse the same hub with different prop housings.
• Thrust Washers & Spacers: Position the prop correctly on the shaft and prevent lateral movement under load.
• Prop Hardware Kits: Typically include nuts, cotter pins, and washers needed for a complete installation.
• Rubber & Polymer Cushion Hubs: Absorb gear shock and impact energy, protecting drivetrain components.

Top Brands in Propeller Parts & Accessories

Solas is one of the most trusted names in marine propulsion. Founded in 1986, Solas has grown into one of the best-known names in propellers for outboard and stern drive applications. Their Rubex interchangeable hub system is particularly popular — the Solas Rubex Hub is made from rubber rather than plastic, making it resistant to harsh marine environments, and the hubs absorb shifting and shock when the propeller contacts an object.

Quicksilver brings OEM-grade engineering to the propeller accessories market. Quicksilver is the premier supplier of Mercury Marine Original Equipment replacement parts and accessories, and the two brands share the same DNA and brand promise. Quicksilver products are available through retail stores and independent marine dealers virtually everywhere marine parts are sold, with over 40,000 parts across 12 product lines.

Turning Point Propellers has built a strong reputation for engineering innovation in hub design. Their patented one-piece design features glass-filled nylon over brass splines, eliminating failures commonly seen with multi-part sleeve-and-spline designs and pressed-in rubber hub systems, while the shock-absorbing high-tech polymer cushion reduces gear shock and engine drive damage.

Michigan Wheel is a long-established name in marine propulsion, offering a range of propeller hardware including their widely compatible XHS hub kit system used across many popular outboard and sterndrive applications.

Choosing the Right Propeller Accessories

Always verify hub kit compatibility with your specific engine make, model, and horsepower before purchasing. Many hub systems are interchangeable across brands — for example, some aftermarket hubs are designed to work as direct replacements for OEM systems from Mercury, Yamaha, Suzuki, Honda, and others. When in doubt, cross-reference your engine's specifications against the manufacturer's fitment guide to ensure a proper, safe installation.