Welcome to Harbor Models Inc.


Model boat electric motors. From tiny radar/winch motors to large motors capable of spinning 5 inch propellers and everything in between.

Mini Geared Motor
Great for radar, crane movement, winch movement or other rotation needs.
6 Volt
60 RPM
This is the same geared motor used in our working winch. Will act as a direct replacement.

Length: 15/16" (24mm)
Width: 1/2" (12mm)
Depth: 3/8" (10mm)
Shaft Diameter: 3mm
Shaft Length: 3/8" (10mm)
Availability: Usually ships the next business day
Modern Outboard Motor
Modern outboard motor for open boats such as our Forelle or other types of model such as rescue boats and inflatable boats up to around 35 cm in length. The electric motor is cowled to protect it from water, and the system can be servo-operated or used in a fixed position defined by a ratchet. Supplied completely assembled, as shown in the illustration.
Fully functioning
Motor cover width: 1
Motor cover length: 1-7/16
3-blade prop diameter: approximately
Overall height: 2-7/8"
3 Volt
Availability: Usually ships the next business day
Aero Naut 6V, 3:1 Geared Motor
Perfect for small models using 1/2" to 1-1/2" diameter propellers.
Gearbox can be removed for direct drive use.

6 Volt
400 Series
3:1 Reduction
Max RPM with gearbox: 5460
Total Length (Including gearbox and drive shaft): 3-1/4"
Shaft Length: 7/8"
Height (from base of motor mount to top of motor can): 1-1/4"
Width (largest point, at base of motor mount): 1-7/16"
Shaft: 4mm
Availability: Usually ships the next business day
500 Direct Drive Motor
This high quality motor comes with motor mount and noise suppression capacitors.

-500 Size
-1/8" (3.2mm) Driveshaft
-6-12 Volt Operation
-~13,350 RPM @ 12 Volts, ~7050 RPM @ 6 volts, no load
-1-3/8" Can Diameter
-2" Can Length
Availability: Usually ships the next business day
500 Geared Motors
This miniature gearbox is of steel and brass construction with brass gears and is mounted on a 1mm think steel bracket. It incorporates a high quality three pole, 500 motor with sintered-bronze bearings. The design and construction of the unit make it suitable for propellers up to 3" in diameter.

Overall length: 4"
6mm Drive Shaft

Four Gearing Options:
MFA16 - 2.5:1 Gearbox - 3200rpm @ 6v, 6300rpm @ 12v
MFA7 - 6:1 Gearbox - 1316rpm @ 6v, 2633 @ 12v
MFA4 - 11:1 Gearbox - 1436 @ 12v
MFA148 - 148:1 Gearbox - 108rpm @ 12v (Perfect for Paddle Wheelers and Side Wheelers)
Availability: Usually ships the next business day
Geared Motor, 810:1
6-12 volt
810:1 Gearbox (Perfect for sternwheelers and some slow sidewheelers)
Availability: Usually ships the next business day
800 Direct Drive Motor w/ Mount
Top RPM: 5167
Runs on 12 Volts
3 Pole
Maximum amperage draw: 5.28amps
Will effectively propel a 36" deep vee boat with a 2" prop. Can also turn props up to 3.5" @ 2500 RPM
Motor mount included.
Overall Length: 4 1/4"
Can Length: 3"
Can Diameter: 2"
Drive Shaft Diameter: 1/4"
Drive Shaft Length: 1/2"
Availability: Usually ships the next business day
Belt Drive W/ Motor
For the builder who likes the larger tugs and merchant ships that require big props and lots of torque. The 800 size motor is matched to a sophisticated toothed belt drive drive rpm reduction system.
This unit produces 2460 rpm at 12 volts with 2.1 times increased torque and 2.1:1 speed reduction.
Comes with assembly and mounting instructions.

Width: (from tip of motor shaft to outside of pulley) 4-3/4"
Height: (from button of pulley to top of motor can) 3-3/4"
Motor can diameter: 2"
Output shaft diameter: 6mm
Availability: Usually ships the next business day
Noise Suppression Capacitor Set
Reduce possible static electricity discharge from motors affecting radio transmission reception.
Package of 3 capacitors with instruction diagram.

Download and Print Instructions
Availability: Usually ships the next business day
Throttle and Rudder Mixer
Automatically control the relative speed of two motors on your boat to achieve extremely sharp turns. As the rudder stick on the radio transmitter is pushed to a greater degree, the motors will change speed to pull/push the boat. Extreme rudder movement will cause the inboard motor to reverse for a tight turn. Works in both forward and reverse. This solid state, micro processor works with any radio system and speed controls. Output connectors provided for the rudder servo and speed controls. Must have 2 speed controls to work. Includes LED power on indicator lamp. Case size: 1 x 1.26 .79"

Click Here for Instructions Download
Availability: Usually ships the next business day
Z-Drive with Coupling
The practical drive unit for fixing to the rear of the fuselage of the model.
Prop: 42mm
Total height: 76mm
Shaft: 4mm

Availability: Usually ships the next business day