Collection: On3 Cross-sell
Expand your On3 railroad with complementary products designed to work alongside Mainline Railworks Code 100 sectional track. From operating accessories and detail parts to specialty track and future switches, these products help transform a basic starting layout into a more complete and functional three-foot narrow gauge railroad.
👉 Browse additional On3 products to add realism, expand operations, and keep your railroad growing.
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Wall Telephone 1930s and Shelf O scale
3D Printed KitRegular price $3.00 USDRegular priceUnit price / per$0.00 USDSale price $3.00 USD -
Small 5ft Octagon Concrete House w/INT O
3D Printed KitRegular price $24.00 USDRegular priceUnit price / perSale price $24.00 USD -
Rio Grande Western 36 Foot Boxcars 1907 Repaint Decal Set RGW Hon3, On30, On3
DecalsRegular price $5.00 USDRegular priceUnit price / perSale price $5.00 USD -
GBC-C006 Utah & Northern Narrow Gauge Cabooses Decal Set - HOn3, Sn3, On3
DecalsRegular price From $5.00 USDRegular priceUnit price / perSale price From $5.00 USD -
GBC-B030 Denver & Rio Grande Railway Four-Wheel Freight Car Decal Set
DecalsRegular price From $5.00 USDRegular priceUnit price / perSale price From $5.00 USD -
ETWNC Gondola Conversion for AMS Flat Cars
3D Printed KitRegular price $30.00 USDRegular priceUnit price / perSale price $30.00 USD -
Denver & Rio Grande Western Railway 24' Narrow Gauge Boxcars Decal Set D&RGW Hon3, Sn3, On30, On3
DecalsRegular price From $5.00 USDRegular priceUnit price / perSale price From $5.00 USD -
Denver & Rio Grande High-Side Gondola Decals 1903-1924 HOn3, Sn3, On3
DecalsRegular price From $5.00 USDRegular priceUnit price / per$0.00 USDSale price From $5.00 USD -
ETWNC Bonnet Car
3D Printed KitRegular price From $20.00 USDRegular priceUnit price / perSale price From $20.00 USD -
GBC-B031 Utah Northern Railroad Four Wheel Freight Car Decal Set - HOn3, Sn3, On3
DecalsRegular price From $5.00 USDRegular priceUnit price / perSale price From $5.00 USD -
Buchan's 17' Ore Gondola
3D Printed KitRegular price From $25.00 USDRegular priceUnit price / perSale price From $25.00 USD -
SJP-Kt10 Cab Forward Boiler
3D Printed KitRegular price $44.00 USDRegular priceUnit price / per$0.00 USDSale price $44.00 USD -
Pacific Coast Railway Locomotive 110 or 111 - On30
3D Printed KitRegular price $75.00 USDRegular priceUnit price / per$0.00 USDSale price $75.00 USD -
GBC-C008 United States Army Narrow Gauge Cabooses - HOn3, Sn3, On3
DecalsRegular price From $5.00 USDRegular priceUnit price / perSale price From $5.00 USD -
ETWNC 36' Gondola and Cord-Wood Cars
3D Printed KitRegular price From $30.00 USDRegular priceUnit price / perSale price From $30.00 USD -
ETWNC 28' Boxcar
3D Printed KitRegular price From $40.00 USDRegular priceUnit price / perSale price From $40.00 USD