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380 Brush Motor for RC Boats: Is This 3-9V Replacement a Fit?

The 1Pc Replacement Spray Water Servo 380 Brush Motor is a compact RC boat replacement at USD 11.39, with 3-9V operation, a 2.3mm shaft, and clearly specified dimensions.

Last updated Aug 24, 2026

Choosing an RC boat motor often comes down to one practical question: do you need a matching replacement for an existing setup, or a complete propulsion system? The 1Pc Replacement Spray Water Servo 380 Brush Motor is aimed at the first job. It is a single replacement motor for RC boat parts, so the key decision is whether its voltage range, shaft measurements, and 380 designation match your craft.

Quick verdict

At USD 11.39, this is a focused replacement part rather than a broad RC boats & aircraft upgrade. The clearest reason to choose it is the combination of a 380 brush-motor designation, compact dimensions, and stated 3-9V working range with a maximum of 12V. The main limitation is equally clear: the package includes one motor, not a complete boat drive setup or battery.

1Pc Replacement Spray Water Servo 380 Brush Motor 3V-12V For RC Boat Parts qq

1Pc Replacement Spray Water Servo 380 Brush Motor 3V-12V For RC Boat Parts qq

This motor makes sense for an RC boat repair or build when the required part is specifically a 380 brush motor. Its listed dimensions are a 28mm diameter, 38mm length, 2.3mm circular shaft diameter, and 9.5mm output shaft length. Those measurements give you concrete points to match against the existing installation.

The electrical details are also spelled out. Working voltage is listed as 3-9V, with 12V maximum. No-load speed is stated as 930RPM at 3V, 18,600RPM at 6V, and 28,000RPM at 9V; no-load current is listed as 300mA, 450mA, and 650mA at those same voltages. These are useful reference values for a setup that already has known requirements, without implying that one voltage is automatically the right choice for every boat.

Who it suits

Choose the 380 Brush Motor if you are replacing a motor in an RC boat and already know that the boat's electrical setup and shaft arrangement correspond to the stated specifications. The single-motor package can also suit a project where the rest of the propulsion hardware is already on hand.

It is a less suitable pick for someone seeking an RC airplane kit, model aircraft radio control component, or RC glider part. The description specifically positions it for RC boat parts, and the package is limited to one 380 brush motor. The suggested 2S lithium battery is not included.

Meaningful trade-offs

The strongest advantage is specificity: the motor's size, shaft dimensions, voltage range, speed figures, and current figures are all presented in concrete terms. That is more useful for a like-for-like repair than a motor description with only a generic "RC" label.

The trade-off is that the same specificity places more responsibility on fit and electrical matching. A 28mm-by-38mm motor with a 2.3mm shaft is not a reason to assume compatibility with every RC boat. Also, the 12V figure is identified as a maximum, while the stated working range is 3-9V, so those two figures should not be treated as interchangeable.

Bottom line

The 1Pc Replacement Spray Water Servo 380 Brush Motor is a narrowly targeted RC boat replacement. At USD 11.39, it is worth considering when the 380 motor type and listed measurements align with your setup. For aircraft projects or a complete propulsion package, its boat-specific description and single-motor contents make the scope too limited.

Products in this article
1Pc Replacement Spray Water Servo 380 Brush Motor 3V-12VUSD 11.39View on eBay
1Pc Replacement Spray Water Servo 380 Brush Motor 3V-12VUSD 11.39View on eBay

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