COOLANT GRlLl E OlL SYSTEM I V y 1 1 73 HOSE CONNECTOR TUBE 1Radietor Outlet NOTE OutIet hoses are used between bottom of radiator and cylinder block Inlet hoses group 1 159 1 are used between top of radiator and engine coolant outlet 1 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 38 49 All 3701363A R 1 z I D moulded 3701363 1 159 47 55 Util exc 261 3694277 1 l z I D moulded 3694277 55 57 1 Ton 8 cyl I I 63 64 Ser 60 Tilt 327 64 66 Ser 50 60 283 327 exc I T Tilt 3860448 1 1 4 I D tube rear 55 57 Ser 4 6 cyl 58 59 Ser 4A 4B 6 cyl exc H T 58 59 Ser 4C 6 cyl 55 59 Ser 6 6 cyl exc P T 3713898 1 1 4 I D moulded 3713898 58 59 Ser 8 10 348 3 942561 1 1 4 I D moulded 3942561 60 61 Ser 50 60 283 exc P T T ilt 62 Ser 60 SBC w 261 W B 62 63 Ser 50 283 62 63 Ser 60 327 exc P T Tilt 3799004 1 1 l D moulded 3799004 60 62 Ser 40 6 cyl 3743077 1 1 4 I D moulded 3768768 60 69 All 3 881210A R outlet outlet upper outlet tube front 1 l D x 2 I 0 D x 4 long moulded 3881210 60 62 Ser 60 w P T Tilt 8 cyl 60 62 Ser 70 80 Tilt 66 67 Tilt 366 exc H D P T 68 6B Tilt 366 142 7 71 72 Tilt 366 427 exc A l 540 3880345 1 lower 2 z l D x 2 O D x 7 long A 1 moulded 3880345 i 60 62 Ser 70 80 Tilt exc Diesel 63 65 Tilt 348 409 exc Diesel P T 66 68 Tilt 366 4127 A 69 70 Tilt 366 71 72 Tilt 366 427 exc A l 540 3776775 1 upper 2 a l D x 2 u O D x 2 long 60 66 Ser 60 80 348 366 409 exc Tilt 3825937 1 2 I D moulded 3825937 y 1 63 64 Ser 50 60 w H D Rad 6 cyll l 64 66 Ser 50 60 6 cyl exc P T Tilt D D 3845442 1 65 Ser 80 D DH478 exc TDNI I Tilt H D Cooling 2490799 1 A 65 Ser 50 60 D351 D DIH478 A exc Tilt H D Coolingi l 65 Ser 80 TDM D DH478 exc g H D Cooling 66 Ser 60 TDM D DH4 78 exc H D Rad 66 Ser 50 60 D351 D DI I478 exc Tilt TDM 2490798 1 65 70 D D A 3834308 1 65 66 Tilt D DH478 exc H D Cooling 65 66 Tilt D351 67 Tilt D478 2462761 1 65 66 All 3 53 3868403 1 65 Ser 80 TDM w H D Cooling 1 1 D DH478 2463060 1 I y 65 Ser 80 LCF w H D Cooling D DH478 2463645 1 65 Ser 80 w H D Cooling D DH478 exc LCF TDM Tilt 2463651 1 65 Tilt w H D Cooling D DH478 2463647 1 1 65 69 All D351 D DH478 2488028 2 cyl head to front cover 66 Ser 60 Tilt w H D Cooling V DH478 67 68 Tilt DH478 2491032 1 2 4 I D 67 69 Ser 50 60 4 53 exc Tilt 3898519 2 2 I D moulded 3898519 cut as req 67 70 Ser 40 thru 60 6 cyl exc Tilt D D 1 71 72 Ser 40 50 Conv SBC 6 cyl 3898547 1 1 I D moulded 3898547 I rw 67 70 Ser 40 thru 60 8 cyl exc 1 Tilt 366 427 71 72 Ser 40 50 Conv SBC 350 exc A T 540 3898548 1 1 4 I D moulded 3898548 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM ii REV 5 79 1 39 1 173 1 173