53 283 w ec a 9 0 I w 4 ee i F g ID O I 2 l W Q 8 8 9 C ly I if gy W I tb PI IB I E6 Q W s Q v l i A A V see MU B3 283 1976 81 Emission common Devices 1 3 278 FITTING Mfld 1 8 27 Sport 1254622 2 3 278 CONNECTOR Vac Hose 499906 V 3 3 278 CONNECTOR Vac Brk TVS 556991 4 3 278 CONNECTOR Hose 4 Way 556630 5 3 278 FITTING W Cap Vac Hose 547943 6 3 278 FITTING Int Mfld 94201941 7 3 278 CONNECTOR Mfld P B Hose 6 673 7826302 8 3 278 CONNECTOR Elbow 3 16 Hose 556992 9 3 278 CONNECTOR Vac Hose 6 Port 22505231 10 3 278 CONNECTOR Vac Hose 2 Port 22505738 11 3 415 MOTOR A Cl Diaph Typical 12 3 415 SENSOR A CI Thermal Typical I 13 3 670 VALVE Vac Ck 497853 14 3 670 VALVE Air Ck 5361992 3 670 VALVE Air Ck 4974265 15 3 670 VALVE EGR Vlv Cont Thermo 419459 3 670 VALVE EGR Vlv Cont Thermo 560111 For specific model application usage and part number identification on typical views refer to the individual parts catalog groups These illustrations are representativeof the actual service parts No scale or size relationship is intended WAREHOUSlNG AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION BUlCK 41A REV 2 5 81 3 131 3 000 GROUP