MasterTorq® 800F SDH Hub Kit – Sound Dampening | 40hp+ Outboards & Sterndrives
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
MasterTorq® 800F SDH Hub Kit — Sound Dampening Hybrid Design
The MasterTorq 800F SDH is a next-generation hybrid hub kit that combines the shift shock and vibration dampening of a traditional pressed-in hub with the ease of installation, replaceability, and long-term reliability of a modern drop-in design. Engineered for outboards and sterndrives 40hp and above, it’s a single all-in-one hub that solves the trade-offs that have defined hub design for decades.
Best Use Case
The 800F SDH is the right choice for boaters running 40hp+ outboards or sterndrives who want meaningful vibration and shift shock dampening without the drawbacks of a traditional pressed-in hub. It’s particularly well-suited to higher-horsepower applications where engine vibration and shift harshness are noticeable — including performance boats, larger pontoons, and sterndrives where smooth operation and lower unit protection both matter. The drop-in design also makes it a practical choice for boaters who want to be able to replace the hub themselves without special tools.
How It Works
Most hub designs force a trade-off: traditional pressed-in hubs offer good vibration dampening but are difficult to replace and can lock solid under impact, increasing the risk of lower unit damage. Newer drop-in hubs are easy to replace but often sacrifice dampening. The MasterTorq SDH bridges both worlds — its Hub Isolation Technology and rubber dampening material absorb shift shock and vibration under normal use, while still being engineered to break away cleanly under impact to protect your lower unit.
Key Features
- Hybrid Hub Technology — Combines the vibration and shift shock dampening of a pressed-in hub with the ease of use and replaceability of a drop-in design.
- Hub Isolation Technology — Additional dampening layer reduces engine vibration transmitted through the drivetrain.
- Rubber Shift Shock Dampening — Absorbs the jarring associated with gear engagement, reducing stress on the engine and drive.
- Breakaway Lower Unit Protection — Engineered to release cleanly under impact — unlike competitive designs that can lock solid and transfer full impact force to the lower unit.
- DIY Replaceable — Designed to be replaced by hand without special tools.
- Reliable Under Normal Use — Will not let loose or spin under standard operating conditions.
- Broad Engine Compatibility — Adaptable to many outboard and sterndrive brands.
Specifications
- Part Number: 11800000
- Model: 800F SDH
- Compatible Engine Range: 40hp and above
- Application: Outboards and sterndrives
Parts Desk Insights
Confirm compatibility before ordering. The MasterTorq SDH is compatible with a wide range of engine brands and propeller housings, but fitment varies by engine make, model, and year. Refer to the application chart for your specific hub part number and compatible propeller housings before purchasing.
Looking for the standard MasterGuard lifetime warranty hub system instead? Browse the MasterGuard lineup:
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.