Unfortuately, very little is known of this GM licensee's production. Following component sets were shipped to Hyundai to build GT26CW's for the Korean National Ry: 789900 - 2 sets (7581-7582) 789905 - 8 sets (7583-7590) 799900 - 10 sets (7141-7144,7591-7596) 799910 - 10 sets (7145-7154) 829902 - 4 sets (7155-7158) 829910 - 12 sets 849903 - 10 sets 849930 - 2 sets 859910 - 10 sets Begin "-2" 889914 - 4 sets 07/89 899904 - 1 set 07/89 899920 - 5 sets 08/90 909900 - 4 sets 10/90 909920 - 1 set GT22CW-2 05/91 (Hyundai Cement Co) 909930 - 5 sets 03/91 909940 - 5 sets 05/91 909960 - 7 sets 08/91 849942 - 2 sets (FT36HCW-2 7001-7002) 869917 - 13 sets (FT36HCW-2 7003-7015) Note - fleet #'s NOT verified for each order #! Since these are component sets, likely a unit by unit correlation is not even possible. Order numbers for the final batches (73-74-7500's) are not known. Known to exist on KNR ca 2003: 7001-7015 FT36HCW-2 7101-7110 GT26CW-2 7111-7120 GT26CW-2 (from 7581-7590 series) 7121-7189 GT26CW-2 7201-7240 GT26CW (from 7557-7596 series) 7301-7383 GT26CW-2 7401-7484 GT26CW-2 7501-7556 GT26CW 7557-7576 GT26CW-2 Production is still continuing. Most recent are 73-74-7500's in 1996-97 A couple of batches were also assembled for customers in Asia, Nigeria also supposedly got 5 Hyundais. Gabon units are model MP15AC-M #521-522 serials HDRS8598-HDRS8599 (??) built 1983 (EMD o/n 839919) Iran took delivery of 10 GT26CW's #60.975 to 60.984 and10 GT26CW-2's #60.985 to 60.994 in the late 80's-early 90's (serials HDRS1 thru HDRS20? - 60.985 is HDRS11). Following EMD order numbers are involved: 839922 (10 GT26CW) 839923 (10 GT26CW) 839925 (10 GT26CW-2) 839929 (10 GT26CW-2) Hyundai assigned their own serial numbers, but details are very sketchy. Early production used a serial of "HDRS" plus a four digit number consisting of the year and a two digit sequence number (1979-80). The next series had "HDRS" plus the last two digits of the locomotive number (1980). In 1983, the previous format reappeared. In 1986-87 a format of yar built plus a 4-digit sequence number was used. Finally in 1990-92, "HDPI" plus year, followed by a dot and a sequence number were employed. It almost seems like nobody knew what they were up to! Any additional info would be greatly appreciated. Known KNR Hyundai serials: 7001-7003 serials 860601-860603 ? 7004-7006 serials 860801-860802 ? 7007 serials 860901 ? 7008-7009 serials 861101-861102 ? 7010-7013 serials 871001-871004 7014-7015 serials 871105-871106 7101-7110 serials 713565-713574 11/75 (EMD) 7111-7120 serials 713555-713564 10-11/75 (EMD) (formerly 7581-7590) 7121-7140 778033-1/20 08-09/78 (EMD) 7141 serial HDRS41? 7142-7143 serials HDRS42-HDRS43 12/80 7144 serial HDRS44? 7145-7156 serials ?? 7157-7167 serials HDRS8301 to HDRS8311 7168-7189 serials ?? 7201-7210 serials ?? (ex ??) 7211 serial HDRS7901 (ex 7581) 7212-7218 serials ?? (ex ??) 7219 serial HDRS8003 (ex 7584) 7220-7228 serials ?? (ex ??) 7229 serial HDRS91 (ex 7591) 7230-7240 serials ?? (ex ??) 7301-7303 serials ?? 7304-7310 serials HDPI90.1-HDPI90.8 7311-7321 serials HDPI91.1-HDPI91.11 7322-7330 serials HDPI92.1-HDPI92.9 7331-7383 serials ?? 7401-7484 serials ?? 7501-7550 serials 37214-37263 04-06/71 (EMD) 7551-7580 serials 713525-713554 09-10/75 (EMD) 7581 serial HDRS7901 08/79 7582-7587 serials HDRS8001-HDRS8006 01/80 7588 serial HDRS8007? 7589-7596 serials HDRS89-HDRS96 12/80 7557-7576 (2nd series) serials ?? Any additional info will be greatly welcomed!