Moeller Swingarm Mechanical Sending Unit
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The Moeller Swingarm Mechanical Sending Unit is a mechanical fuel level sender that uses a swingarm float to gather fuel level information, with a direct sight gauge included. It’s designed to work with Moeller’s standard 33–240 ohm gauge system, and it can also be used with an optional conversion capsule for electric dash-mounted gauge readings.
Key Features
- Mechanical swingarm sender gathers fuel level information using a float read by a direct sight gauge (included).
- Direct sight gauge included with the sending unit.
- Fuel level readings may fluctuate as fuel “sloshes” during boating due to the moving float and swingarm mechanism.
Product Compatibility
- Marine fuel tank fuel level indication systems (direct sight and optional electric dash conversion).
- For tank depths matched to the specific sending unit length (see Product Details).
Product Details
- Moeller Swingarm Mechanical Sending Unit
- SKU: 114-03575710
- Tank depth: 17-3/4 in. / 451 mm
- Output calibration: 33–240 ohms (industry standard)
- Includes: direct sight gauge (direct site gauge included on mechanical units)
- Conversion capability: supports use with a conversion capsule to convert the standard direct sight gauge reading to an electric dash-mounted gauge (33–240 ohms)
- Note: The gauge reading can fluctuate while boating as the fuel level moves (“sloshes”) around the tank.
Parts Desk Insights
Best Use Case: Choose this mechanical swingarm sender when you want a direct fuel sight gauge on the tank (and/or plan to use the optional conversion approach to display fuel level at a dash).
Common Issues: If the gauge response seems inconsistent, verify the sending unit is matched to the correct tank depth and check for proper mounting/contact at the tank opening. Remember mechanical readings can vary with fuel movement while underway because the float/swingarm responds to changing fuel level.
Related Products & Accessories
- Conversion Capsule – Mechanical to Electric - Use the appropriate Moeller conversion capsule to convert direct sight gauge output to an electric dash-mounted gauge (33–240 ohms).
- Replacement Direct Sight Gauge - A replacement direct sight gauge is available for mechanical swingarm units.
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.