FUEL EXHAUST CARBURETION E G R VALVES CROSS REFERENCED FROM SERVICE TO PRODUCTION NO S CONTINUED SERV PROD SERV PROD SERV PROD SERV PROD 17111256 17UB5H7U 17111257 IFMRBBTE 17111258 17US5H7 1I11125Q 17UR5w1 171112 EO 1708592 O 17111298 17OB473U 171112 UQ 17UR4738 4212TwU 94 123UU WAREHUU ING ND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION CORVETTE 14V 3 000 GROUP E G R VALVE 4 REV 1 85