Engine Number & Number Location Guide Example: TU 30008 U 510256 F Engine family and type code TU Parts list number or SOS order ref. Number 30008 Country of manufacture code U Engine Serial Number 510256 Year of manufacture code F Engine Family and Type Code A Phaser/1004 Series DK 1103A-33T 1104D Series UF 804C-33T AA 1004-4 E 4.108 Series NH 1104D-E44T V 1106C Series AB 1004-4T ED 4.108 NJ 1104D-E44TA VK 1106C-E60TA AC 1004-4T G 4.154/200 Series NK 1104D-44 W 1300 Series Peregrine AD 1004E-4TW GA 4.154 NL 1104D-44T WB 1306-8T AE Fed.