4W04 005 21 4 630 COVER PART OF 22 25535918 22 4 625 PEDAL 1988 NCL 21 14103936 4 625 PEDAL 1989 91 NCL 21 10137375 23 4 931 FITTING BOOS VAC PIPE LHO LB6 10070158 24 8 917 NUT HFH M8X1 25X7 5 10 PEOR AR Q 11507036 25 4 930 PIPE BOOS VAC 1988 LB6 2 10100029 4 930 PIPE BOOS VAC LHO LB6 3 10110456 26 4 930 STUD BOOS VAC PIPE M1OX1 5X16 M8X1 25X16 9 8 PO 14054414 27 8 915 NUT HFH M10X1 5X1 1 21 OD M9 ZOR AR 11503643 28 4 634 NUT BRKT PLT 1988 90 1991 W19 TYPE 1 1 1508277 4 634 NUT BRKT PLT 1991 W19 TYPE 2 L 11505005 I 29 4 898 INSULATOR BOOS 1988 2 10094336 4 898 INSULATOR BOOS 1988 3 10094403 4 898 INSULATOR BOOS 1989 10094403 30 8 950 RETAINER PUSH IN 25OX1 01 NY BLK 10121502 31 4 955 VALVE CK W GROM 18012017 32 4 931 HOSE BOOS VAC LHO LB6 10114722 4 931 HOSE BOOS VAC L27 52362037 33 8 948 CLAMP WORM GEAR 11 16 TO 1 5 16 1470030 NOTE 1 SEE GROUP 4 000 FOR DETAILED ILLUSTRATED VIEW NOTE 2 IST DESIGN 1988 USED WITH STAINLESS STEEL EXHAUST MANIFOLDS NOTE 3 2ND DESIGN 1988 USED WITH CAST IRON EXHAUST MANIFOLDS RPO DEFINITIONS I J65 BRAKE SYSTEM POWER FRONT AND REAR DISC I x J 1993 GENERAL MOTORS SERVICE PARTS OPERAT 0NS BUICK 45W j 4 000 GROUP 4 128 2 93