Broadway Limited Imports HO Scale Coupler Conversions

The perfect solution for all of your coupler woes. Thanks to our extensive list of HO Scale coupler conversions, it's easier than ever to fit Kadee® Couplers onto your locomotives and rolling stock. Our conversions typically require the least modification to your model, and the How-To Instructions and diagrams make fitting your new couplers a breeze. Remember to always check your coupler heights with our #206 Coupler Height Gauge. We've done the hard work for you, so find the perfect coupler in the list below.*

  Whisker® Metal Coupler Standard Coupler Other Coupler Options

SY 2-8-2 Mikado

SY 2-8-2 Mikado Conversion

USRA 2-8-2 Heavy Mikado

#143 Pilot
in a
#252 Gearbox

4-6-4 Hudson

4-6-4 Hudson Conversion

#178 Pilot


Diesels (w/o Kadee® Couplers)


Diesel Locomotives with Factory Knuckle Couplers

Diesel Locomotives with Factory Knuckle Couplers
Any Medium Centerset Coupler

Plymouth Switcher

GG1 (old)

#17, #18, #19, or #20

Rolling Stock & Passenger cars with Factory Knuckle Couplers

Rolling Stock & Passenger cars with Factory Knuckle Couplers
Any Medium Centerset Coupler

6000 Gallon Tank Car Amtrak Passenger Cars ARA 70-Ton 4-Bay Hopper Cars California Zephyr Cars Cryogenic Tank Car GACX 53'6" Express Reefer Cars H2a 3-Bay Hopper Cars 2018 H32 Covered Hopper Cars H32 Covered Hopper Cars 2015 K7 Stock Car - Sound & No Sound Miscellaneous Ex-California Zephyr Cars N&W Auxiliary Water Tender NYC Steel Box Cars Pennsylvania P70 Passenger Cars Rio Grande Zephyr SP Daylight Trains, HO Wabash Blue Bird Train Trackmobile

Anywhere a NO.5® is listed, the #28, #58 or #118, #119, #158, #148 Whisker® Coupler can be used in its place.

Newer models that have factory-installed knuckle couplers are easily converted by using our standard head #148 or scale head #158 Whisker® Couplers.
If you need a longer coupler, use the #146 or scale head #156 Whisker® Coupler.

Shallow cast-on gearbox fix: If you have a Kadee® Coupler that is not moving freely back and forth in a shallow cast-on gearbox. This is because some clone knuckle coupler manufacturers started molding shallow cast-on gearboxes on their models to try to fix the problems with their drooping clone knuckle couplers. The fix is a simple one. You have to file the top of the coupler shank a few strokes with a file, usually just enough to remove the black coloring to make the Kadee coupler function correctly in the non-standard shallow cast-on gearbox.

*Our conversions are based on only one model from a production run; there may be inconsistencies in a model’s production run that require a different coupler or model modifications to achieve the proper coupler height for coupler function.

** Metal Coupler Note: It is not recommended to use a metal coupler directly on a metal surface to avoid the possible electrical crossover or shorting that may cause damage.