Locomotive couplers are available with various alternate shank designs (styles). Coupler shank designs vary to suit the particular locomotive series coupler receptacle design.

Vertical pin connection constitutes the Standard means of assembly of the coupler shank and locomotive coupler yoke or other type receptacle. Shank connecting pin holes are bored and bushed. Bushing diameters vary in size to suit the requirements of the locomotive shank receptacle.

Type E locomotive coupler parts are identical in design to those used in AAR Standard Type E couplers. Type F locomotive coupler operating parts are identical in design to those used in AAR Standard Type F couplers. Coupler bodies, knuckles and locks are furnished in quenched and tempered Grade E steel.

In general, locomotive couplers and parts are manufactured and furnished in accordance with the requirements of AAR Specifications M-201 and M-211. Governing AAR Inspection & Maintenance and Reconditioning Specifications for Type E and F couplers and parts are for the most part applicable to Type E and F locomotive couplers and parts.

For additional information refer to the introduction in the section for Type E couplers and Type F couplers.