Kadee Logo


Kadee® Manufactured
& Assembled in the
USA Flag

Kadee® Direct
New Online Ordering
(541) 826-3883





Kadee Coupler Conversions      Kadee Conversion List

Kadee HO Logo
#27 20-Series Coupler medium (9/32") underset shank
20-Series Coupler
in the #213 draft gear box


#27 Mounting Dimensions
#213 draft gear box)
Universal Adaptor Plate
(20-Series Draft Gear box)
mounted on bottom
#27 Mounting Dimensions
(#213 draft gear box)
Universal Adaptor Plate
(20-Series Draft Gear box)
mounted on top
#27 Mounting Dimensions
(#232 draft gear box)

The 20-Series Kadee® Magne-Matic® Couplers are designed for either Talgo (truck) or body mounting.


The #27 Kadee® Magne-Matic® Coupler features a very strong plastic isolated coupler, #634 Centering Spring, (same gear box as the NO.5® Coupler), insulated #232 Draft Gear Box and Lid with side and center screw holes for mounting and the (20-Series draft gear box) insulated #213 Universal Adaptor Plate.


The #27 Coupler easily installs in existing Talgo-mounted draft gear boxes with supplied #212 Talgo Truck Adaptors or can be body mounted with supplied #232 draft gear box (NO.5® Draft Gear Box) with side and center screw holes for mounting or with the supplied #213 Universal Adaptor Plate (20-Series draft gear box).


Note: The 20-Series assembly may be mounted from the top or mounted from the bottom but the #634 Centering Spring must be always mounted on top of coupler shank.


Two pair per package



20-Series Coupler Instructions


20-Series Chart .pdf

Coupler Conversion Info

You must first identify the locomotive or rolling stocks manufacturer and type before looking the product up on the HO-Scale Coupler Conversions. Use the HO-Scale Coupler Conversions to lookup our suggested starting coupler* for the particular model. (Our conversions typically requiring the least modification to a model utilizing our newest couplers even though other couplers also work for the model).


Once you have lookup our suggested starting coupler you can use our HO-Scale Coupler Conversions (How -To instructions and diagrams) to help you with the couplers installation process. Always check the coupler heights with either our #205 or newer #206 Coupler Height Gauge.


Note: If the model came with Factory Knuckle Couplers it will not be listed on the HO-Scale Coupler Conversions under manufacturer there is a generic conversion for Factory Knuckle Couplers on the top of the HO-Scale Coupler Conversions.

*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.


#27 Medium (9/32") underset shank 2 Pair $4.59