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Alco Spring Industries is a full line replacement parts supplier of
locomotive springs, standard “D” series freight car
springs, wear plates, slope plates, side springs, gibs, bolster pocket
wear plates, friction castings, restoring mechanisms, inner bolts,
follower blocks, Y47 coupler yoke pins, pedestal filler blocks, retainer
plates, single- and double-taper center pins, C-10 knuckle pins,
vertical bolster wear liners and horizontal bolster wear liners. Alco is
an AAR M-1003 certified quality manufacturer.