0 643 RING UNIT Piston Servlce Sets NOTE Individual piston ring sets std size only for warranty replacement in a single cylinder may be ordered thru the local G M P D warehouse Identify by engine model and year Each of these std size piston ring sets include the necessary components ring spacers segnents expanders required for replacement in a SINGLE cylinder Original Equipment Type Complete set for one engine per container STD 020 O S 030 O S 040 O S 55 56 ALL 265 37482309 3748231 3748232 1 27 15 55 62 ALL 235 37485919 3748592 3748593 1 22 50 55 62 ALL 261 Q 37485959 3748597 3748598 1 24 30 56 59 ALL 322 13891769 13891779 13891789 1 30 00 57 64 ALL 283 63 64 Ser 50 230 37389019 3738902 3738903 1 29 60 58 64 ALL 348 37505389 3750539 1 29 90 58 64 ALL 348 3950541 1 29 95 62 63 Ser 60 327 1st desizn 38395109 3839511 3816967 1 29 90 62 63 ALL 409 lst design 37988719 3798873 3798879 3798885 1 32 25 62 64 DIESEL 5196833T A R 9 58 63 64 Ser 50 60 292 3794473 3794474 3794479 3794484 1 24 30 63 64 Ser 60 327 2nd design 38395109 3839511 3839512 1 29 90 63 64 Ser 80 409 2nd design 3839227 3839228 3839230 3839232 1 32 25 pecl I Replacement Type Complete set for one engine per contoiner Cromflex type STD 020 0 S 0300 S 0400 S 55 56 ALL 265 37249989 3724999 3725000 3725001 1 27 15 55 62 ALL 235 37130029 3713003 3713004 3713005 1 22 50 55 62 ALL 261 37316769 3731681 3731685 3731689 1 24 30 57 64 ALL 283 63 64 Ser 50 230 37475399 3747549 3747558 3747567 1 29 60 58 64 ALL 348 37554629 3755463 3755464 3755465 1 31 60 62 64 ALL 327 3799438 3799448 3799458 1 29 90 63 64 Ser 50 60 292 3846206 3846207 3846208 3846209 1 24 30 9NOTE This part is eligible for wholesale compensation TNOTE This Ring set contains 1 ring piston compression top 3 ring piston compression 4 ring piston oil control half 2 expander oil control ring NOTE 040 0 S Pistons are not serviced for this engine NOTE Only three quarters of the components in these units are required for 6 cyl models A 0 646 CRANKSHAFT WEIGHT UNIT 55 56 ALL 265 Ident No 3836266 3704840 1 84 50 55 59 ALL 6 cyl 60 62 ALL 6 cyl exc Air Equip TILT L Ident No 3701488 37014860 1 79 50 56 59 ALL 322 Ident No 1342999 1165373 1 84 50 57 ALL w P T 283 Ident No 3735236 3727449 1 84 50 57 ALL 283 exc P T 57 59 Ser 4 8 cyl 5861 ALL 283 exc L D 5 I 59 Ser 6 w L D 283 60 61 Ser 40 283 60 64 Ser 50 283 Ident No 3735236 3815827 1 84 50 58 62 ALL 348 Ident No 3732692 or 3741642 3741642 1 94 50 60 62 ser 60 w Air Equip 6 y1 TILT 60 62 TILT 6 cy1 Ident No 3770327 3770326 1 79 50 62 64 ALL 327 Idcnt No 3782690 3794083 1 86 50 62 64 Ser 60 DIESEL Ident No 5116029 5116448 1 315 99 62 64 Ser 80 DIESEL Ident No 5116030 5116449 1 356 41 63 64 Ser 50 60 292 Ident No 3789412 3789411 1 79 50 63 64 ALL 348 ldeut No 3824553 3828475 1 94 50 62 ALL 409 64 ALL 409 ident No 3824554 3828477 1 98 50 gl Ir r f t Motor Dlvlslon 0 643 0 64 Genorql Motors Corporation 135 I ID l REVISED JANUARY 1 964 X