Accurail 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

All Rolling Stock

Accurail Rolling Stock with Factory Knuckle Couplers
Any Medium Centerset Coupler

1100 Series 36' Fowler Wood Boxcar 1300 Series 36' Double Sheath Wood Boxcar w Steel Roof, Steel End, Fishbelly Underframe1300 Series 36' Double Sheath Wood Boxcar w/Steel Ends, Fishbelly Underframe 1400 Series 36' Double Sheath Wood Boxcar w Steel Roof, Steel End, Straight Underframe1400 Series 36' Double Sheath Wood Boxcar w/Steel Ends, Straight Underframe 1700 Series 36' Double Sheath Wood Boxcar w Steel Roof, Wood Ends, Fishbelly Underframe1700 Series 36' Double Sheath Wood Boxcar w/Wood Ends, Fishbelly Underframe 1800 Series 36' Double Sheath Wood Boxcar w Steel Roof, Wood Ends, Straight Underframe1800 Series 36' Double Sheath Wood Boxcar w/Wood Ends, Straight Underframe 2000 Series ACF 3-Bay Hopper2000 Series ACF 3-Bay Covered Hopper 2200 Series ACF 2-Bay Hopper2200 Series ACF 2-Bay Covered Hopper 2300 Series Canton Car Co. Twin Hopper2300 Series Canton Car Co. Coal Hopper 2400 Series USRA 55-Ton Coal Hoppers2400 Series As-Built USRA Coal Hopper 2500 Series USRA 55-Ton Coal Hoppers2500 Series USRA Coal Hopper 2700 Series 55-Ton Wood Side Hoppers 2700 Series Wood Side Coal Hopper 2800 Series 55-Ton Panel Side Hoppers2800 Series Panel Side Coal Hopper 3100 Series 40' Plug Door Boxcars 3100 Series 40' Plug Door Insulated Steel Boxcar 3400 Series 40-Foot PS-1 Boxcars 3400 Series 40' PS-1 Steel Boxcar 3500 Series 40-Foot Single Door Boxcars3500 Series 40' Single Door Steel Boxcar 3600 Series 40-Foot Double Door Boxcars 3600 Series 40' Double Steel Boxcar 3700 Series AAR 41' Steel Gondola 3700 Series AAR 41' Steel Gondola 3800 Series 40' Combo Door Boxcar 3800 Series 40' Combo Door Steel Boxcar 3900 Series Rib Side Boxcars 3900 Series Milwaukee Road Rib-Side Boxcars 4100 Series Wood Boxcar with wood doors and wood ends4100 Series 40' Single Sheath Wood Boxcar w/Wood Doors & Ends 4300 Series Wood Boxcar with wood doors & metal ends 4300 Series 40' Single Sheath Wood Boxcar w/Wood Doors & Steel Ends 4500 Series Wood Boxcar w/metal doors and ends4500 Series 40' Single Sheath Wood Boxcar w/Steel Doors & Ends 4600 Series 40 Foot Double Sheath Wood Boxcar 4600 Series 40' Double Sheath Wood Boxcar 4700 Series 40 Foot Stock Car4700 Series 40' Wood Stock Car 4800 Series Wood Refrigerator Cars 4800 Series 40' Wood Refrigerator Car 4900 Series Wood Refrigerator Cars 4900 Series (Early) 40' Wood Refrigerator Car 5000 Series 50' Single Door Boxcars 5000 Series Single Door Riveted Steel Boxcar 5100 Series 50' Plug Door Boxcars 5100 Series Plug Door 50' Riveted Steel Boxcar 5200 Series 50' Double Door Boxcars 5200 Series Double Door Riveted 50' Steel Boxcar 5300 Series 50' Combo Door Boxcars 5300 Series Combo Door 50' Welded Steel Boxcar 5400 Series 50' Double Plug Door Boxcars 5400 Series Double Plug Door 50' Steel Boxcar 5500 Series 50' Superior Door Steel Boxcar 5500 Series Superior Door 50' Steel Boxcar 5600 Series 50' Exterior Post Boxcars 5600 Series Exterior Post Welded 50'Steel Boxcar 5700 Series 50 Foot Welded Boxcar w/low ladders 5700 Series Single Door Welded 50' Steel Boxcar 5800 Series 50 Foot Welded Plug Door Boxcar w/low ladders 5800 Series Plug Door Welded 50' Steel Boxcar 5900 Series 50 Foot Welded Double Door Boxcar w/low ladders 5900 Series Double Door Welded 50' Steel Boxcar 6500 Series Pullman Standard 4750 Grain Hopper 6500 Series Pullman Standard Covered Hopper 7000 Series 40' 6-Panel Wood Boxcar with Wood Doors & Ends7000 Series 6-Panel Wood Boxcar w/Wood Doors & Ends 7100 Series 40' 6-Panel Wood Boxcar with Metal Doors & Ends7100 Series 6-Panel Wood Boxcar w/Steel Doors & Ends 7200 Series 40' 6-Panel Wood Boxcar with Wood Doors & Metal Ends7200 Series 6-Panel Wood Boxcar w/Wood Doors & Steel Ends 7500 Series Offset-Side Triple Hopper7500 Series 70-Ton Offset Side Triple Hopper 7700 Series Offset-Side Twin Hopper 7700 Series 50-Ton Offset Side Twin Hopper 8300 Series 40' Steel Reefer8300 Series 40' Hinged Door Steel Reefer 8500 Series 40' Plug Door Steel Reefer8500 Series 40' Plug Door Steel Reefer 1200 Series Multi Car Sets1200 Series Multi-Car Sets 9900 Series 45-Foot Highway Trailers 9900 Series 45' TOFC Trailer 9400 Series 89' Partially Enclosed Auto Racks 9400 Series 89' Enclosed Auto Rack (Retired) 89' Open Auto Racks 9200/9300 Series 89' Open Auto Rack (Retired) 8900 Series 89-Foot TOFC Flat Cars 8900 Series 89' TOFC Flat Car (Retired)

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.