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Liter/ CID/ Model # Cyl. Year Serial# Sierra Remanufactured Alternator Arco Remanufactured Alternator Sierra New Alternator Arco New Alternator Mallory Alternator (new)
120 GM 4 1964-1975 1666601-4469865 18-5951 20104 18-5957 40147  
120 GM 4 1964-1982 1666601-6229717 18-5951 20104 18-5957 40147  
140 GM 4 1964-1981 2508261-6229717 18-5951 20104 18-5957 40147  
160 GM 6 1969 2768032-2770031 18-5951 20104 18-5957 40147  
165 GM 6 1970-1981 2770032-5813433 18-5951 20104 18-5957 40147  
185 GM V-6 1983-1984 6330183-6919655     18-5966 60050 9-19101
[out of stock]
185 GM V-6 1985-1987 A331455-B527954     18-5966 60050 9-19101
[out of stock]
200 GM V-8 1985-1986 6218462-B525981     18-5966 60050 9-19101
[out of stock]
205 GM V-6 1985-1991 A331455-D714369     18-5966 60050 9-19101
[out of stock]
225 Ford V-8 1973-1974 3385721-4166999 18-5951 20104 18-5957 40147  
228 GM V-8 1977-1986 4765100-B525981     18-5966 60050 9-19101
[out of stock]
230 GM V-8 1977-1986 4765100-B525981     18-5966 60050 9-19101
[out of stock]
233 Ford V-8 1975-1977 4173000-4902304 18-5951 20104 18-5957 40147  
250 GM V-8 1977 4768000-4908849 18-5951 20104 18-5957 40147  
255 Ford V-8 1973-1974 3258728-4175499 18-5951 20104 18-5957 40147  
255 GM V-8 1975-1976 4175500-4767999 18-5951 20104 18-5957 40147  
260 GM V-8 1978-1982 4908850-6218461 18-5951 20104 18-5957 40147  
260 GM V-8 1982-1986 6218462-B525981     18-5966 60050 9-19101
[out of stock]
260 GM V-8 1982-1986 6218462-B525981     18-5966 60050 9-19101
[out of stock]
330 GM V-8 1977-1981 4623115-6083144 18-5951 20104 18-5957 40147  
330 GM V-8 1982-1987 6083145-B816540     18-5966 60050 9-19101
[out of stock]
420 GM V-8 1987-1989 A398941-B622418     18-5966 60050 9-19101
[out of stock]
425 GM V-8 1990-1992 A398941-D937011     18-5966 60050 9-19101
[out of stock]
465 GM V-8 1990-1994 C849992-F213244     18-5966 60050 9-19101
[out of stock]
575 GM V-8 1986-1992 A677429-D763716     18-5966 60050 9-19101
[out of stock]
888 Ford V-8 1971-1977 3108723 & Up 18-5951 20104 18-5957 40147  
898 GM V-8 1977-1982 4762210-6218461 18-5951 20104 18-5957 40147  
898 GM V-8 1983-1984 621462-B525981     18-5966 60050 9-19101
[out of stock]
120 / 2.5L GM 4 1983-1989 6229718-C853255     18-5966 60050 9-19101
[out of stock]
140/3.0L GM 4 1982-1989 6229718-C856558 18-5951 20104 18-5957 40147  
140/3.0L/3.0LX GM 4 1990-1992 C856559-D831100 18-5951 20104 18-5957 40147  
140/3.0LX GM 4 1992-UP D831101& Up     18-5966 60050 9-19101
[out of stock]
200/5.0L GM V-8 1987-1995 B525982-F600999     18-5966 60050 9-19101
[out of stock]
230/5.0L MIE GM V-8 1987-1988 5907058-B788151     18-5966 60050 9-19101
[out of stock]
230/5.0LX GM V-8 1987-1995 B525982-F600999     18-5966 60050 9-19101
[out of stock]
230/5.0LX GM V-8 1987-1995 B525982-F600999     18-5966 60050 9-19101
[out of stock]
260/5.7L GM V-8 1987-1995 B525982-F600999     18-5966 60050 9-19101
[out of stock]
260/5.7L MIE GM V-8 1987-1995 5907058-F746099     18-5966 60050 9-19101
[out of stock]
340/7.4L MIE w/BW GM V-8 1981-1992 5889914-D715493     18-5966 60050 9-19101
[out of stock]
198 MIE GM V-8 1977 4762210-6218461 18-5951 20104 18-5957 40147  
215 MCM &MIE Ford V-8 1970-1972 2781153-3563181 18-5951 20104 18-5957 40147  
225 MIE Ford V-8 1973-1974 3385721-4176999 18-5951 20104 18-5957 40147  
228 MIE GM V-8 1977-1980 4176999-5907057 18-5951 20104 18-5957 40147  
233 MIE Ford V-8 1975-1976 4173000-4775784 18-5951 20104 18-5957 40147  
255 MIE Ford V-8 1973-1974 3258728-4178299 18-5951 20104 18-5957 40147  
255 MIE GM V-8 1975-1980 4175500-5907057 18-5951 20104 18-5957 40147  
262 Mag. EFI GM V-6 1996-1997 F803800-K999999     18-5960 60060 9-19104
270 MCM & MIE GM V-8 1969-1972 2851074-3385720 18-5951 20104 18-5957 40147  
280 TRS GM V-8 1975-1976 4176250-4770199 18-5951 20104 18-5957 40147  
300 MR TEMPEST GM V-8 1985-1986 6668677-B430367     18-5966 60050 9-19101
[out of stock]
300 TR TEMPEST GM V-8 1985-1986 6668677-B430367     18-5966 60050 9-19101
[out of stock]
320 EFI GM V-8 1987-1989 A543604-C622418     18-5966 60050 9-19101
[out of stock]
325 MCM & MIE GM V-8 1970-1974 2761142-3780449 18-5951 20104 18-5957 40147  
330 MIE GM V-8 1977-1980 4623115-5889913 18-5951 20104 18-5957 40147  
350 Mag EFI Ski GM V-8 1994-1997 F215561-K999999     18-5965 60065 9-19103
350 Mag MPI Ski GM V-8 1995-1996 F350583-F799999     18-5965 60065 9-19103
350 Mag MPI Ski GM V-8 1998-up L002600& Up     18-5960 60060 9-19104
350 Mag Ski GM V-8 1991-1996 D505450-K040399     18-5966 60050 9-19101
[out of stock]
350 Mag Ski GM V-8 1997 K040400-K999999     18-5967 60055 9-19102
350 Mag. Alpha GM V-8 1997 K001527-K999999     18-5967 60055 9-19102
350 Mag. Alpha GM V-8 1986-1995 A635178-F600999     18-5966 60050 9-19101
[out of stock]
350 Mag. Alpha GM V-8 1987-1996 B525982-K001526     18-5966 60050 9-19101
[out of stock]
350 Mag. EFI & MPI GM V-8 1995-1996 F415189-K001500     18-5965 60065 9-19103
350 Mag. EFI & MPI GM V-8 1997-up K001501& Up     18-5960 60060 9-19104
350 Mag.MPI MIE GM V-8 1998-up L002008& Up     18-5960 60060 9-19104
350 MIE GM V-8 1974-1976 3780450-4623109 18-5951 20104 18-5957 40147  
370 TRS GM V-8 1978-1985 4179554-6721527 18-5951 20104 18-5957 40147  
370 TRS GM V-8 1978-1987 4179554-B714586     18-5966 60050 9-19101
[out of stock]
370 TRS GM V-8 1985-1987 6721528-B714586     18-5966 60050 9-19101
[out of stock]
390 MCM & MIE GM V-8 1969-1970 2781129-3042731 18-5951 20104 18-5957 40147  
4.3L GM V-6 1992 & Up D714107 & Up     18-5967 60055 9-19102
4.3LH GM V-6 1998-up L010044& Up     18-5967 60055 9-19102
4.3LX GM V-6 1992-1997 D714107-K999999     18-5967 60055 9-19102
4.3LX GM V-6 1996-1997 F803000-K999999     18-5967 60055 9-19102
4.3LXH GM V-6 1992-1997 D714107-K999999     18-5967 60055 9-19102
4.3LXH GM V-6 1996-1997 F803000-K999999     18-5967 60055 9-19102
400 TRS GM V-8 1980-1986 4179554-B457644 18-5951 20104 18-5957 40147  
400 TRS GM V-8 1980-1986 4179554-B457644     18-5966 60050 9-19101
[out of stock]
440 TRS GM V-8 1983-1986 4179554-B457644 18-5951 20104 18-5957 40147  
440 TRS GM V-8 1983-1986 4179554-B485220     18-5966 60050 9-19101
[out of stock]
454 EFI Ski GM V-8 1995-1996 F215800-F820099     18-5965 60065 9-19103
454 Mag. GM V-8 1986-1994 A631894-F304999     18-5966 60050 9-19101