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USA Trains Large Scale Coupler Conversions

The perfect solution for all of your coupler woes. Thanks to our extensive list of Large Scale coupler conversions it's easier than ever to fit Kadee® Couplers onto your locomotives and rolling stock. Our conversions typically require the least amount of modification to your model and the How-To Instructions and diagrams make fitting your new couplers a breeze. Remember to always check your #1 Scale coupler heights with our #829 or #1929 Type E Coupler Height Gauge, and check your G Scale coupler heights with our #880 or #980 Type E Coupler Height Gauge. We've done the hard work for you so find the perfect coupler in the list below.*

Type E
G Coupler

Original Style
G Coupler

G Coupler

Type E
#1 Coupler

Original Style
#1 Coupler

4-6-4 Hudson Steam
(Tender only)

44 Ton Loco

44 Ton Loco Conversion

20 Ton Loco


F-3 A & B Units

F-3 A & B Units - (two options, instructions available) (Pilot) Conversion


F-3 A & B Units

F-3 A & B Units - (Pedestal) Conversion


GG-1 Conversion







GP-30 (Closer More
Secure Coupling)

GP-30 (Closer more secure coupling) Conversion




PA-1 Conversion


PB-1 Conversion




SD-40-2 Conversion


SD-70 MAC Conversion

NW-2 - Large Diameter
(8 Foot Diameter & Larger)


NW-2 - Small Diameter
(Less Than 8 Foot Diameter)

NW-2 - Small Diameter (Less than 8 Foot Diameter) Conversion

Rolling Stock

Note: If the coupler conversion doesn't have a "New Generation" Type "E" Coupler option listed it is not available. If you would like "New Generation" Type "E" Couplers, you will need to purchase the listed coupler package (in order to have the necessary components for conversion) & then you would need to purchase the appropriate "New Generation" Type "E" Coupler replacement couplers & swap out couplers in original conversion. Use the coupler cross reference chart description or coupler description from Kadee® web site product page to identify the coupler style included in the packaging. The #782, #783, #1782 & #1783 have modified couplers that are not available in the "New Generation" Type "E" Coupler.

Note: Kadee®-RC Couplers can only be body mounted.

*Our conversion’s 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.