Welcome to Harbor Models Inc.

Propulsion

Model boat propellers, propeller shafts, rudders, kort nozzles, couplers, bow thrusters, motors, rudder arms and more!

3 Blade Propellers
4 Blade Propellers
5 Blade Propellers
Special Propellers
Here you can find special propellers such as kort nozzle props and surface cutters.
Motors
Model boat electric motors. From tiny radar/winch motors to large motors capable of spinning 5 inch propellers and everything in between.
Propeller Shafts
Propeller shafts in varying lengths and diameters. Suitable for the very small to very large projects. 2mm, 1/8", 4mm and 3/16" shafts available in stock, special order 1/4" and 3/8" for extra heavy duty project.
Couplers
These heavy duty couplers will provide connection for a large range of sizes from 2mm to 1/4" shafts.
Bow Thrusters
Bow thrusters are a great way to add maneuverability to your vessel. This list gives the builder an option for any size ship.
2 Shoe Kort Nozzle
Cast polymer kort nozzle.
Nozzle dia. 4"
Propeller dia. 3-3/8" (85mm)
2 rudder shoes

Rudders to work with this nozzle found here: HAR2007
$19.95
Availability: Usually ships the next business day
HAR2006
3 Shoe Kort Nozzle, 3.5"
Made from cast polymer
Accepts up to a 3.3" (85mm) propeller
Sand to exact curvature of your ship

Rudders to work with this nozzle found here: HAR2007
$24.95
Availability: Usually ships the next business day
HAR2005
Split Rudder, 1/Pack
This is referred to as a "split rudder" because of the dual sections. The smaller, top section gets embedded into the hull for a secure fit. Since these rudders can handle large amounts of pressure this section will ensure the rudder shaft doesn't spin loose in the shaft hole in the hull.

Designed for an open wheel set-up.

Rudder Dimensions:
Height: 5"
Width: 2-15/16"

Rudder Shaft Dimensions:
Height (just portion out of the top of the rudder): 3-3/8"
Diameter: 3/16"
$18.95
Availability: Usually ships the next business day
TIL124
Nozzle Rudder
This cast polymer rudder with 7" cast-in stainless steel shaft is suitable for use with either the Pono or San Pedro nozzles.

Height" 3-5/8"
Width: 1-7/16"
Rudder Shaft Height (total): 7"
Rudder Shaft Diameter: 1/8"
$8.95
Availability: Usually ships the next business day
HAR2007
Strut
Brass Strut
Use this strut to help support your drive shaft and stuffing box. The tube portion slides over your stuffing box and the plate installs into the bottom of your hull. With everything aligned properly this will provide your shaft with great support.

From the options:
.338" (8.6mm) will fit the Harbor Models' 3/16" Shaft and Stuffing Box
.310 (7.8mm) will fit the Harbor Models' 4mm Shaft and Stuffing Box


Images:


Custom struts are available via special order, give us a call for custom sizes. 626-963-4591
$9.95
Availability: Usually ships the next business day
HAR2000
Inner Diameter: 
Shaft Support
Made from hard polymer
1 Set/Pack


Triangular piece is 5-3/4" long. Will fit up to a 3/8" diameter stuffing box.
Shape the triangular piece to the profile of your hull with some sanding and run the stuffing box through the two pieces. Glue/epoxy them together for a watertight, strong finish. From inside the hull put two small screws through the bottom into the shaft support and glue/epoxy around the holes.

Depending on the contour of your hull the finish product should look something like this:
$12.95
Availability: Usually ships the next business day
TIL107
Single Rudder Arm, 1/8"
Cast metal rudder arm with set screw drilled and tapped. Set screw is included.

Takes 1/8" rudder shaft
Over length: 1-3/16" (30mm)
Diameter (at the shaft insert): 1/2" (12mm)
Control rod hole diameter: 1/16" (1.5mm)
$5.45
Availability: Usually ships the next business day
DUM3504
Dubble Rudder Arm, 1/8"
Cast metal rudder arm with set screw drilled and tapped. Set screw is included.

Takes 1/8" rudder shaft
Over length (from shaft insert to control rod end): 1-3/16" (30mm)
Width (looking at it as a "V"): 1-7/16" (37mm)
Diameter (at the shaft insert): 1/2" (12mm)
Control rod hole diameter: 1/16" (1.5mm)
$5.95
Availability: Usually ships the next business day
DUM3515
Dubble Rudder Arm, 3/16"
Cast metal rudder arm with set screw drilled and tapped. Set screw is included.

Takes 3/16" rudder shaft
Over length (from shaft insert to control rod end): 1-3/16" (30mm)
Width (looking at it as a "V"): 1-7/16" (37mm)
Diameter (at the shaft insert): 1/2" (12mm)
Control rod hole diameter: 1/16" (1.5mm)
$5.95
Availability: Usually ships the next business day
DUM3516
Single Rudder Arm, 3/16"
Cast metal rudder arm with set screw drilled and tapped. Set screw is included.

Takes 3/16" rudder shaft
Over length: 1-3/16" (30mm)
Diameter (at the shaft insert): 1/2" (12mm)
Control rod hole diameter: 1/16" (1.5mm)
$5.45
Availability: Usually ships the next business day
DUM3508
Ball Links, 4-40
These high quality ball links feature burnished, nickel plated brass swivel balls for smooth operation. Complete with socket head cap screw, brass shim and hex nut.
takes a 4-40 threaded rod
2 sets per pack
$4.49
Availability: Usually ships the next business day
DUB2161
Heavy Duty Ball Link, 4-40
3 piece set, 4-40 threaded ball and self-threading socket for 4-40 pushrods, 4-40 lock nut.
1 set/Pack
$2.15
Availability: Usually ships the next business day
DUBRO884
Clevis w/ Pushrod, 4-40 thread
2/Pack
Rod dimesions:
12" Long
4-40 Thread
$6.95
Availability: Usually ships the next business day
GPMQ3784
Threaded Control Rod, 4-40
Thread: 4-40
12" long
1/Pack
$1.29
Availability: Usually ships the next business day
DUB802
Clevis, 4-40
Hard steel construction

Thread: 4-40
2/Pack
$3.89
Availability: Usually ships the next business day
GPMQ3794
Swivel Ball Link 2-56
Swivel Ball Link 2-56
Regular price: $4.55
Sale price: $3.65
Availability: Usually ships the next business day
DUB367
Rigging Couplers 2-56
RIGGING COUPLERS 2-56
4/Pack
Regular price: $5.99
Sale price: $4.55
Availability: Usually ships the next business day
DUB201