Welcome to Harbor Models Inc.

Couplers

Couplers
These heavy duty couplers will provide connection for a large range of sizes from 2mm to 1/4" shafts.

Coupler
Heavy duty brass ends are locked down to the shaft with a set screw using the Allen wrench supplied. The heavy duty universal joint slides over the brass ends and is held in place by the veins on the brass and grooves in the plastic.
Use the two drop down menus to select the two end sizes for your coupler. Once you have selected both sizes click "ADD TO CART" and that size coupler will be added to your shopping cart.

Overall size 1-3/4" (44.5mm) Long
$18.95
Availability: Usually ships the next business day
MFAC
End1:  End2: 
Coupler Insert, end only
Replace broken, used or lost coupler ends.
$6.95
Availability: Usually ships the next business day
MFACI
SIZE: 
Coupler Body
Use this extra coupler body in conjunction with the above Super Navy Coupler to create a double universal joint for extra flexibility in your motor/drive shaft setup. 1-5/16" Long
$6.95
Availability: Usually ships the next business day
MFACB
Universal Coupling Joiner
Use this insert to make a double knuckle u-joint out of the MFA Coupler.
$4.95
Availability: Usually ships the next business day
MFA1105-JOINER
Heavy Duty Coupler
This heavy duty coupler can handle even the toughest tugs and workboats. Made from all aluminum with double set screws on each shaft. Will only work in setups where the motor and propeller shaft are perfectly in-line with each other. If you need a universal joint for minor offsets see MFAC.'

Total length approximately 1-1/2" (3/4" for each shaft).

Choose your sizes from each dropdown menu or mention custom sizes in the "Comments" section during checkout.
$18.95
Availability: Usually ships the next business day
HAR2011
End1:  End2: 
Dumas Shaft Coupling
Machined brass universal sockets with nylon dogbone coupling rod. Use the two "End" drop down menus to choose each end of the desired coupler size then click add to cart.

Overall length: 1-7/8"
$11.45
Availability: Usually ships the next business day
DUMC
END1:  END2: