COOLANT GRILLE OIL SYSTEM GMC GROUP 1 1 66 Con t 78 All 4 9414933 A R 74 CLAMP hex sl hd 1 62 1 94 type C 6 1470 78 78 All 4 477402 AR 1 l0 CLAMP range 31 to 75 dia xc chr 6 1470 74 78 M H C 3434I9 1 1 05 PROTECTOR hose 4 6 1923 J 77 78 K 2 3 Cab w A 292 480327 1 1 10 PROTECTOR hose 6 1923 78 C K1 2 3 305 350 400 w A T M3B M40 14000217 1 1 15 PROTECTOR rad otlt hose 6 1923 73 78 G1 2 3 V8 3999780 1 39 STRAP rad Inl hose 6 19005 1 173 HOSE Radiator Outlet NOTE 0utlet hoses are used between bottom of radiator and cylinder block lnIet hoses Group 1 159 are used between top of radiator end engine coolant outlet NOTE Some hoses have been replaced with hoses of a different length or configuration This replacement hose in rnany instances will require cutting using old part as guide 73 M H C 350 454 33I003 1 12 10 HOSE 1 4 I D moulded 331003 8 1785 73 75 G 1 2 3 350 76 78 G 1 2 3 305 350 400 328768 1 8 55 HOSE 1 I D moulded 326768 6 1785 73 77 CK 1 2 3 Blazer Jimmy 305 307 350 400 73 78 P 2 3 307 350 eric M H C 14009334 1 N L HOSE 1 I I D moulded 337929 6 I765 73 78 All 454 exc M H C 382300 1 11 l5 HOSE 1 I D moulded 362300 AA 6 1765 73 74 G 1 2 3 6 cyl 355058 1 8 55 HOSE 1 I D moulded 335257 6 1765 74 78 M H C 350 454 343414 1 12 10 HOSE 1 I D moulded 3434l4 6 I765 75 78 GP 1 2 3 6 cyl 355058 1 8 55 HOSE 1 4 I D Ident No 4 355058 RP 6 1765 73 78 CKP 1 Z 3 Blazer Jimmy 6 cyl 460326 1 8 55 HOSE 1 l D Ident No 460328 6 1765 78 All Diesel 14015709 1 9 80 HOSE 1 I D ident No 487530 KC 6 1765 78 CK l 2 3 305 350 400 471622 1 8 55 HOSE rad otlt 1 l D ldent No i 471622 UK 6 1765 1 203 CAP ASM Radiator Filler with Gasket 73 CKG 1 Z 3 Blazer Jimmy 861050 1 N L CAP ASM 6 0020 73 P 1 2 3 M H C 74 77 All Blazer Jimmy M H C 8410865 1 N L CAP ASM 6 0020 78 CKGPI 2 3 6410785 1 3 83 CAP ASM rad lil 6 0020 1 210 HOSE NECK ASM SUPPORT Radiator Filler 73 78 M H C 3996473 1 l 85 HOSE filler coolant recovery 1 I D ident No 3996473 6 1760 73 78 M H C 3998470 I 16 95 NECK ASM 8 0130 73 78 M H C 328699 l 3 40 SUPPORT neck 6 0130 1 219 CORE Radiator NOTE For drain cocks see Std Parts Group 6 951 NOTE st line denotes production and service core identification letters that each service core replaces 73 77 All w OM ON OO OS OT OV OW 73 74 G l A T w H D Rad H D Cooling C A C 350 73 74 G 2 3 w A T 350 73 74 CK 1 Blazer Jimmy A T w H D Rad C A C 350 73 CK 1 B azer Jimmy A T w C A C 307 73 74 CK 2 3 w A T 307 350 73 77 P 2 w A T 307 350 J ti WAREHOUSING AND l ISTRIBUT 0N0lVlS 0N OF GENERAL MOTORS CORP0llAT 0N LT TRUCl 5l 1 166 1 219 1 18 REV 2 83