Polaflex Hub Kit A for Mercury/Force/Yamaha D/E GROUP - 40-400 HP

For Mercury:

13 tooth spline 3 1/4" Gear case

25HP Bigfoot (4-stroke) 1999-2005
30HP Bigfoot (4-stroke) 2010-newer
30HP (2 & 4-stroke) 1994-2005
30HP (Sea Pro/Marathon) 1994-newer
35HP 1984-1989
402 & 500 Models 1974-1984
40HP (2 & 4-stroke /not Bigfoot) 1977-newer
40HP (Sea Pro/Marathon) 1977-newer
45HP 1986-1989, 48HP (Mariner) all years
55HP (Mercury/Sea Pro/Marathon) 1995-newer
50HP (2 & 4-stroke / not Bigfoot) 1977-newer
60HP (4-stroke) (not Bigfoot or Sea Pro/Marathon) 1978-newer
60HP (2-stroke) 1978-newer
70HP (Model 700) 1983
Force 40/50HP 1995-1998
70HP 1991-1995
75HP 1996-1998

For Force:

13 spline tooth 3 1/4” Gear case

40&50 HP 1995-1998
70 HP 1991-1995
75 HP 1996-1998

Find your matching hub kit here:

DETAILS F11A Hub Kit :

Cross Reference: x

The Polastorm F11A Hub Kit is an essential component specifically designed to enhance the performance of boats powered by Mercury and Force engines. This complete kit is designed to optimize your boat's functionality and ensure smoother operation in a variety of marine conditions. With a comprehensive set of essential components, the F11A Hub Kit enhances your boating experience with improved stability and responsiveness.

The main difference between an aluminum and brass hub kit is that brass is softer and therefore more compliant in a crash, protecting the motor. Aluminum is stronger, lighter, and more durable, but less compliant. Brass is therefore more suitable for recreational use where the risk of contact with objects is higher, while aluminum is better for applications where durability and weight are crucial.

Brass hub kit:
- Material: Softer than aluminum.
- Advantage: Provides better protection for the engine and gears because the material can yield in the event of an impact or collision with an object.
- Disadvantage: Less strong and durable than aluminum.
- Application: Often used for recreational boats where the chance of contact with objects is greater.

Aluminum hub kit
- Material: Stronger, lighter and more durable than brass.
- Benefit: Provides greater durability and lighter weight.
- Disadvantage: Less compliant, which increases the risk of damage to the engine gears in the event of a collision.
- Application: Suitable for situations where durability and weight are important and the risk of impact is lower.

This kit contains:

- Shock absorber: Minimizes vibrations and shock transfer, for a comfortable ride.
- Thrust Stopper: Prevents unwanted thrust movements and ensures optimal alignment and performance.
- Front Ring: Provides a secure fit and good seal to protect critical components.
- Spacer: Ensures correct spacing and alignment within the structure, for better durability.
- Nut: Ensures a firm and secure connection of all components, improving overall reliability.

The F11A Hub Kit is carefully designed for seamless integration with your existing engine configuration. Its robust construction and innovative design not only enhance your engine's performance but also extend the life of critical components by reducing wear.

Important technical information:

- Compatibility: Mercury and Force engines
- Installation: Easy to install with standard tools
- Material: High-quality, corrosion-resistant aluminum and rubber