Kadee 905 G Scale Type E Centerset Couplers With Sill Mount Pockets

G-Scale Type E Coupler with #779 Gearbox Centerset Coupler #905 AAR Type "E" Couplers, "Prototype" Head Centerset Couplers & #779 Gear Boxes Black ? AAR Type ?E? Coupler ? Trouble Free Operation ? Hidden Knuckle Spring ? Easy to install, drop in design ? Compatible with Kadee G-Scale Couplers ? World-renowned quality & performance ? They just Last & Last & Last... Centerset Couplers with Sill Mount Pockets Note: AAR Type ?E? Centerset Couplers are modified for sill mount pocket clearance. Includes: 1 Pair Centerset Couplers, #779 Gear Boxes & lids, Adaptor Plates, #861 Centering Springs, 1-72 x 1/2 Screws, 1-72 Nuts, & 2 x 1/4 Screws. #905 Coupler Instructions (#779-1779 coupler instructions) Patent number 7,810,660 B1 One pair per package UPC: 765484009054