The #153 "Scale" Short Coupler will work anywhere a #23, #33, & #143 Coupler will work.

The #153 "Scale" All Metal Self-Centering WHISKER® Coupler features a "Scale" Metal Coupler (a smaller head coupler which is more to scale and is patterned after the type 'E" couplers) & Metal WHISKER® Centering Spring, insulated Draft Gear Box and Lid. The #153 Coupler may be mounted in Manufacturers cast-on coupler pockets or any of our HO-Scale draft gear boxes (except #233 30-series gear box). The coupler will couple and uncouple with other Kadee® HO and HOn3 couplers. The coupler has the same shank length as the #23, 33 or 43 coupler which will allow the modeler to remove the existing #23, 33 or 43 coupler and replace with the new smaller coupler. The #153 coupler is made of the same metal as the #43 for strength and rigidity.

It is not recommended to use a metal coupler directly on a metal surface or in a metal draft gearbox to avoid possible electrical crossover and shorting that may cause damage.