Seachoice 50-15421 Electric Fuel Sender – Float Arm, 6–27 in. Tank
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Seachoice 50-15421 Electric Fuel Sender – Float Arm, 6–27 in. Tank
A versatile float-arm fuel sender that covers a wide range of marine tank depths in a single unit. The Seachoice 50-15421 is compatible with gas or diesel tanks from 6 to 27 inches deep and works with 35 to 240 ohm dash-mounted fuel gauges — making it one of the most broadly compatible senders in the Seachoice lineup.
The swing-arm float rotates in 90° intervals to clear tank walls or internal baffles without any tank modification. Non-ferrous construction resists corrosion in both fuel types, and mounting screws and a gasket are included for a complete installation.
Key Features
- Float-arm electric sender — sender only, gauge not included
- Compatible tank depth: 6 to 27 inches
- Works with gas or diesel fuel
- Compatible with 35 to 240 ohm dash-mounted fuel gauges
- Swing-arm float rotates in 90° intervals for baffle and wall clearance
- Non-ferrous construction for corrosion resistance
- Includes mounting screws and gasket
- Part Number: 50-15421 | Barcode: 719249154213
Best Use Case
Best suited for replacing a worn or failed fuel sender across a wide range of single-station boat fuel tanks — from shallow portable tanks to deeper inboard configurations up to 27 inches. This is the same sender unit included in the Seachoice 50-15501 complete gauge kit, making it the go-to replacement when only the sender needs to be swapped. Confirm your gauge’s ohm range (35–240 ohm) before ordering.
Parts Desk Insights
This is a sender-only unit. If you also need a replacement gauge, the Seachoice 15441 Fuel Gauge with Black Bezel is a compatible option and pairs directly with this sender. For a complete matched kit with both components, consider the Seachoice 50-15501 Marine Fuel Gauge Kit. If your tank is shallower than 12 inches and you want a more compact sender, the Seachoice 50-15461 Float Arm Sender (6–12 in.) is an alternative. Prefer a no-moving-parts option? The Seachoice reed switch sender range (33/240 ohm) is available in lengths from 6 in., 7 in., 8 in., 9.2 in., 10 in., 11 in., 13.2 in., 16 in., 26.4 in., 32 in., and 36 in. — note these are 33/240 ohm, so confirm gauge compatibility before mixing sender types.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 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.