COOLANT GRlLLE OIL SYSTEM GMC GROUP 1 153 Con t 75 78 P 3 M H C 454 exc NB 2 78 G 2 3 400 exc NB 2 78 G 3 400 NB 2 w dual rr wheel 329223 1 5 90 DUTLET 4 44 4 6 1840 75 78 P 3 M H C w NB 2 454 354415 1 11 55 OUTLET 44 6 1840 78 All Diesel 4 409037 1 5 20 OUTLET 4 4 6 1840 78 All 250 w lntregal Hd 465999 1 6 30 OUTLET 6 1840 73 78 All 3706737 AR 26 WASHER 1lat x 4 x i thk ZC 6 1840A 1 154 GASKET Coolant Outlet 73 78 All Blazer Jimmy M H C 8 cyl exc Diesel 3701777 1 45 GASKET 6 1860 78 All Diesel 404633 1 GASKET 6 1660 1 159 HOSE Radiator Inlet NOTE lnle hose is used between top of radiator and engine coulent outlet 0utlet hoses group 1 173 are used between bottom of radiator and cylinder block NOTE Some hoses have been replaced with hoses of a different length or configuration This replacement hose in many instances will require cutting using old part as guide 73 74 All 454 exc M H C 75 78 C 1 Z 3 454 359827 1 8 65 HOSE l I D ldent No 359827 RU 6 1760 73 78 G 1 2 3 w A C H D Rad 8 cyl 335299 1 12 50 HOSE l I D moulded 335299 6 I760 73 78 M H C 350 6259952 1 10 45 HOSE 1 I D moulded 6259952 6 1780 73 78 M H C 454 6259953 1 8 55 HOSE 1 LD moulded 6259953 6 1760 73 78 G 1 2 3 8 cyl exc C A C H D Rad 335275 1 10 65 HOSE l a I D moulded 335275 6 1760 73 74 CKP 1 Z 3 Blazer Jimmy 307 350 75 78 CK 1 2 3 Blazer Jimmy 305 350 400 75 78 P 2 3 350 exc M H C 343490 1 N L HOSE l I D ldent Na 343490 JF 6 1760 73 74 G 1 2 3 8 cy 75 78 GP 1 2 3 6 cy 73 78 CK l 2 3 Blazer Jimmy 5 cyl 355057 1 8 65 HOSE 1 D Ident No 355057 RT 6 1760 75 78 P 3 454 exc M H C 355105 10 45 HOSE l I D ldent No 355105 AX 6 1760 76 P 3 w JB8 292 357564 1 8 55 HOSE l LD ldent Na 357564 6 1760 78 All Diesel 467529 1 10 45 HOSE l I I D ldent N0 457529 KB 6 1760 1 166 CLAMP PROTECTOR STRAP Hose 73 78 All Blazer Jimmy M H C 1470029 LR 1 55 CLAMP hose stainless steel to 6 1470 73 78 All Blazer Jimmy M H C 2488394 A R 1 55 CLAMP worm adj type 6 1470 73 78 All Blazer Jimmy M H C 3749810 A R 1 55 CLAMP adjustable strap type 1 to B 8 1470 73 78 All Blazer Jimmy M H C 2494772 A R N L CLAMP miniature wurm drive type 545 460 range 6 1470 73 78 All Blazer Jimmy M H C 1470030 A R 1 10 CLAMP worm adj type i x 1 4 I D 6 1470 73 77 All M H C 454 451203 2 45 CLAMP therm by pass hose 6 I470 73 78 All Blazer Jimmy M H C 2488394 1 1 55 CLAMP hex head worm gear site 20 expansion n to 1 6 1470 73 79 All Blazer Jimmy M H C 3706737 AR 26 CLAMP hex ltd worm gear 1 6 V dia 1 153 6 1470 WAREHOUSING AND DISTRIBUTIONDIVISION OF GENERAL MOTORS CORPORAT 0N LT TRUCK 5l 1 REV 2 83 1 i1 1 153 1 166