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Mantua 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

0-4-0 Booster

0-4-0 Booster Conversion
 

#37
 

0-4-0 Camelback

0-4-0 Camelback Conversion
 

#37
#147
in a
#252 Gearbox

0-4-0 Switcher

0-4-0 Switcher Conversion
 

#37
 

0-6-0 Tank Switcher

0-6-0 Tank Switcher Conversion
 

#37
 

0-6-0 Little Six Switcher

0-6-0 Little Six Switcher Conversion
 

#37
#147
in a
#252 Gearbox

0-8-0 USRA Switcher

0-8-0 USRA Switcher Conversion
 

#27 Pilot

#37 Tender
 

2-6-0 Mogul

2-6-0 Mogul Conversion
 

#37
#147
in a
#252 Gearbox

2-6-2 Prairie

2-6-2 Prairie Conversion
 

#37
#147
in a
#252 Gearbox

2-6-6-2 Logger

2-6-6-2 Logger Conversion
 

#22 Pilot

#28 Rear
 

2-6-6-2 Mallet

2-6-6-2 Mallet Conversion
 

#22 Pilot

#28 Rear
 

2-8-0 Consolidation

2-8-0 Consolidation Conversion
 

#37
 

2-8-2 Mikado (Camelback)

2-8-2 Mikado (Camelback) Conversion
 

#37
 

2-8-2 Mikado (Old- Pwr. in Tender)

2-8-2 Mikado (Old- Pwr. in Tender) Conversion

#148

#5 (NO.5®)
#28, #58
or
#118, #119, #158

2-8-2 Mikado

2-8-2 Mikado Conversion
 

#38
#148 or #158
in a
#252 Gearbox

2-8-4 Berkshire

2-8-4 Berkshire Conversion
 

#37
 

4-4-0 American

4-4-0 American Conversion
 

#31 Pilot

#37 Tender
#141 Pilot, #147 Tender
in a
#252 Gearbox

4-4-2 Atlantic

4-4-2 Atlantic Conversion
 

#28
 

4-6-0 Ten Wheeler (Rogers)

4-6-0 Ten Wheeler (Rogers) Conversion
 

#31 Pilot

#37 Tender
#141 Pilot, #147 Tender
in a
#252 Gearbox

4-6-2 Pacific

4-6-2 Pacific Conversion
 

#39 Pilot

#37 Tender
#149 Pilot, #147 Tender
in a
#252 Gearbox

4-6-2 Pacific (Newer)

4-6-2 Pacific (Newer) Conversion
 

#36 Pilot

#37 Tender
#146 Pilot, #147 Tender
in a
#252 Gearbox

4-6-4 Hudson

4-6-4 Hudson Conversion
 

#31 Pilot

#38 Tender
#141 Pilot, #147 Tender
in a
#252 Gearbox

EMD F-7A & B

EMD F-7A & B Conversion
 
 

#28 Truck Mount
 

EMD GP-20

EMD GP-20 Conversion
 
 

#28 Truck Mount
 

Water Car (Old Time)

Water Car (Old Time) Conversion

#147

in a

#212 Talgo Adapter

#27
 

Other Freight Car Kits

Other Freight Car Kits Conversion
 

#38
#148, #158
in a
#252 Gearbox

Streamlined Passenger Car (Metal)

Streamlined Passenger Car (Metal) Conversion
 

#28
 

Passenger Cars, Old Time 1860

Passenger Cars, Old Time 1860 Conversion

#147

in a

#212 Talgo Adapter

#27
 

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.