Seachoice 17971 Watertight Cable Thru-Hull Fitting | Black | 9/32" Slot | 1-1/2" Flange
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Seachoice 17971 Watertight Cable Thru-Hull Fitting
The Seachoice 17971 is the larger-slot version of the popular Seachoice cable thru-hull range, designed for installations where a wider cable, dual cables with more clearance, or heavier gauge wiring needs to pass cleanly through a hull or bulkhead. The 9/32" slot and 1-1/2" flange provide a secure, watertight seal with a bit more room than the standard 1/4" models, making it the right choice when cable diameter or connector size rules out the smaller fitting. Self-attaching with no additional hardware required, it installs quickly and cleanly on hulls up to 2" thick. The black finish suits dark hulls and bilge-area installations.
Key Features
- Watertight seal — keeps moisture out at the cable entry point
- Self-attaching design — no additional hardware required
- 9/32" slot — wider than standard 1/4" models for larger cables or connectors
- 1-1/2" flange for a secure, finished surface seal
- 2" maximum hull thickness
- Accepts single or double cables
- Black finish — suits dark hulls and bilge installations
Compatible Applications
- Routing heavier gauge power cables or dual cables through the hull
- Transducer, antenna, or sensor cables with larger connectors or sleeves
- Bilge pump wiring and through-hull electrical runs requiring extra clearance
- Any single or double cable requiring a watertight hull or bulkhead penetration up to 2" thick
- Powerboats, sailboats, and trailered vessels with dark hulls or bilge areas
Parts Desk Insights
The 17971 is the fitting to reach for when the standard 1/4" slot on the Seachoice 17901 is too tight for the cable or connector the customer is working with. The extra width makes a real difference when routing cables with moulded connectors or protective sleeves that won't compress down to 1/4". If the hull is white and the customer wants a colour-matched finish, the Seachoice 17991 (9/32" Slot, 1-1/2" Flange, White) is the same fitting in white. Browse the full range in our Switches & Circuit Protection collection.
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.