Attwood Snap-Lock 1.77" Seat Base, Aluminum, 9" Round (SP67904)
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Attwood Snap-Lock 1.77" Seat Base, Aluminum, 9" Round (SP67904)
The Attwood SP67904 is a 9-inch round aluminum base for the Attwood Snap-Lock pedestal system. It installs flush into the deck through a 2.5" diameter mounting hole, sitting 3 inches below the deck surface, and accepts any compatible 1.77" Snap-Lock post. All Snap-Lock series components snap and hold together securely, allowing the post and seat to be installed or removed quickly without tools while staying firmly locked in place during use.
- 9" round aluminum base plate
- 1.77" Snap-Lock system compatible
- All Snap-Lock components snap and hold together securely
- Deck mounting hole required: 2.5" diameter
- Depth below deck: 3"
- Aluminum construction for corrosion resistance
Compatible Snap-Lock System Components
- Attwood Snap-Lock 1.77" Fixed Height Post, Anodized Aluminum, 13"
- Attwood 13" Snap-Lock Marine Seat Pedestal
- SwivlEze Snap-Lock Seat Mount, 3° Tilt, 1.77"
Parts Desk Insights
Best use case: The SP67904 Snap-Lock base is the right choice for installations where you want a clean, flush-mounted deck socket that allows the pedestal post to be snapped in and out quickly — ideal for boats where the seat is removed regularly for fishing, storage, or passenger access. The 9" round base provides a stable, balanced footprint and the aluminum construction holds up well in saltwater environments. Before ordering, confirm your deck can accommodate a 2.5" mounting hole and 3" of depth below the surface. Pair with a compatible 1.77" Snap-Lock post and seat mount to complete the system.
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.