Identification Coding
General Motors engines may be identified by the 8th digit of the Vehicle Identification Number (VIN Number) located on the left, upper side of the instrument panel. This number is visible through the windshield from outside the vehicle. An additional identification code number will be found on the engine. This number identifies emission control equipment for a specific engine size and application and may be used by more than one of the following manufacturers.
BUICK
| Engine | Code | ||
|---|---|---|---|
| 1.8L 4-Cyl. (VIN G) | CYA, CYB, CYC, CYD, CYF, CYH, CYJ, CYK, CYM, CYN, CYR, CYS, CYT, CYU, CYW, CYX, CYY, CYZ, CZF, CZJ, CZK, CZY, CZZ, C8A, C8B, C8C, C8D, C8F | ||
| 1.8L 4-Cyl. (VINO) | UHJ, UHK, UHL, UHP, UHS, UHT, UHY, UHZ | ||
| 2.0L 4-Cyl. (VIN B) | CSA, CSB | ||
| 2.5L 4-Cyl. (VIN R) | 3J, 3K, 3L, 3M, 3P, 3S | ||
| 2.8L V6 (VIN X) | CAY, CBA, CBC, CBF, CBJ, CBK, C7N, C7R, C7S, C7T, C7U, C7W | ||
| 2.8L V6 (VIN Z) | (1) | ||
| 3.0L V6 (VIN E) | EA, EB | ||
| 3.8L V6 (VIN A) | MA, MC, MG, MK, ML, MM | ||
| 3.8L V6 (VIN 3) | MB, MF, MH | ||
| 4.1L V6 (VIN 4) | FA, FB, FC, FD, FE, FF, FG, FH, FJ, FK | ||
| 4.3L V6 (VIN T) | UAC, UAH, UAL | ||
| 4.3L V6 (VIN V) | UAA, UAD, UAJ | ||
| 5.0L V8 (VIN Y) | TAA, TAB, TAC, TAD, TAF, TAK, TAM, TAW, TAX, TAY, TAZ, TBA, TBB | ||
| 5.7L V8 (VIN N) | VAB, VAC, VAD, VAK, VAL, VAM, VAN, VAP, VAS, VAU, VAW, VAX, VAY, VAZ, VBA, VBB, VBC, VBP, VBV, VBW | ||
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CADILLAC
| Engine | Code |
|---|---|
| 1.8L 4-Cyl. (VIN G) | CYH, CYK, CZF, CZJ, CZK |
| 2.0L 4-Cyl. (VIN B) | CSA, CSB |
| 4.1L V6 (VIN 4) | FA, FB, FC, FD, FE, FF, FG, FH, FJ, FK |
| 4.1L V8 (VIN 8) | AA, AB, AD, AF |
| 5.7L V8 (VIN N) | VAB, VAC, VAD, VAK, VAL, VAM, VAN, VAP, VAS, VAU, VAW, VAX, VAY, VAZ, VBA, VBB, VBC, VBP, VBY, VBW |
| 6.0L V8 (VIN 9) | FA, RA |
CHEVROLET
| Engine | Code | ||
|---|---|---|---|
| 1.8L 4-Cyl. (VIN G) | CYA, CYB, CYC, CYD, CYF, CYH, CYJ, CYK, CYM, CYN, CYR, CYS, CYT, CYU, CYW, CYX, CYY, CYZ, CZF, CZJ, CZK, CZY, CZZ, C8A, C8B, C8C, C8D, C8F | ||
| 2.0L 4-Cyl. (VINO) | CSA, CSB | ||
| 2.5L 4-Cyl. (VIN R) | 3J, 3K, 3L, 3M, 3P, 3S | ||
| 2.5L 4-Cyl. (VIN 2) | X3A, X3C, X3F, X3H, X5A, X5F, X5H | ||
| 2.8L V6 (VIN X) | CAY, CBA, CBC, CBF, CBJ, CBK, C7N, C7R, C7S, C7T, C7U, C7W | ||
| 2.8L V6 (VIN Z) | (1) | ||
| 2.8L V6 (VIN 1) | CBT, CBU, CBW, CBX, CB2, CJB, C7A, C7B, C7C, C7D | ||
| 3.8L V6 (VIN A) | MA, MC, MG, MK, ML, MM | ||
| 3.8L V6 (VIN K) | CCA, CCC, CCF, CCH | ||
| 4.3L V6 (VIN T) | UAC, UAH, UAL | ||
| 4.3L V6 (VIN V) | UAA, UAD, UAJ | ||
| 4.4L V8 (VIN J) | CDB, CDC, CDD, CDJ, C2S, C4U, C4W | ||
| 5.0L V8 (VIN H) | CFA, CFB, CFC, CFD, CFF, CFH, CFR, CFT, CFW, CFY, CRA, C2R, C2S, C2T, C2U, C2W | ||
| 5.0L V8 (VIN 7) | CFJ, CFK, CFM, CFN | ||
| 5.7L V8 (VIN N). VAB, VAC, CAD, VAK, VAL, VAM, VAN, VAP, VAS, VAU, VAW, VAX, VAY, VAZ, VBA, VBB, VBC, VBP, VBW, VB4 | |||
| 5.7L V8 (VIN 8) | ZBA, ZBC | ||
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OLDSMOBILE
| Engine | Code | ||
|---|---|---|---|
| 1.8L 4-Cyl. (VIN G) | CYA, CYB, CYC, CYD, CYF, CYH, CYJ, CYK, CYM, CYN, CYR, CYS, CYT, CYU, CYW, CYX, CYY, CYZ, CZF, CZJ, CZK, CZK, CZZ, C8A, C8B, C8C, C8D, C8F | ||
| 2.0L 4-Cyl. (VIN B) | CSA, CSB | ||
| 2.5L 4-Cyl. (VIN R) | 3J, 3K, 3L, 3M, 3P, 3S | ||
| 2.8L V6 (VIN X) | CAY, CBA, CBC, CBF, CBJ, CBK, C7N, C7R, C7S, C7T, C7U, C7W | ||
| 2.8L V6 (VIN Z) | (1) | ||
| 3.01 V6 (VIN E) | EA, EB | ||
| 3.8L V6 (VIN A) | MA, MC, MG, MK, ML, MM | ||
| 4.1L V6 (VIN 4) | FA, FB, FC, FD, FE, FF, FG, FH, FJ, FK | ||
| 4.3L V6 (VIN T) | UAC, UAH, UAL | ||
| 4.3L V6 (VIN V) | UAA, UAD, UAJ | ||
| 4.3L V8 (VIN 8) | QAA, QAC, QAD, QAF, QAH | ||
| 5.0L V8 (VIN H) | CFA, CFB, CFC, CFD, CFF, CFH, CFR, CFT, CFW, CFY, CFZ, CZR, CZS, CZT, CZU, CZW, CRA | ||
| 5.0L V8 (VIN Y) | TAA, TAB, TAC, TAD, TAF, TAK, TAM, TAW, TAZ, TBA, TBB | ||
| 5.7L V8 (VIN N) | VAB, VAC, CAD, VAK, VAL, VAM, VAN, VAP, VAS, VAU, VAW, VAX, VAY, VAZ, VBA, VBB, VBC, VBP, VBU, VBW | ||
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PONTIAC
| Engine | Code | ||
|---|---|---|---|
| 1.8L 4-Cyl. (VIN G) | CYA, CYB, CYC, CYD, CYF, CYH, CYJ, CYK, CYM, CYN, CYR, CYS, CYT, CYU, CYW, CYX, CYY, CYZ, CZF, CZJ, CZK, CZY, CZZ, C8A, C8B, C8C, C8D, C8F | ||
| 1.8L 4-Cyl. (VIN O) | UHJ, UHK, UHL, UHP, UHS, UHT, UHY, UHZ | ||
| 2.0L 4-Cyl. (VIN B) | CSA, CSB | ||
| 2.5L 4-Cyl. (VIN R) | 5J, 5K, 5L, 5M, 5P | ||
| 2.5L 4-Cyl. (VIN 2) | X3A, X3C, X3F, X3H, X5A, X5F, X5H | ||
| 2.8L V6 (VIN X) | CAY, CBA, CBC, CBF, CBJ, CBK, C7N, C7R, C7S, C7T, C7U, C7W | ||
| 2.8L V6 (VIN Z) | (1) | ||
| 2.8L V6 (VIN 1) | CBT, CBU, CBW, CBX, CB2, CJB, C7A, C7B, C7C, C7D | ||
| 3.8L V6 (VIN A) | MA, MC, MG, MK, ML, MM | ||
| 4.1L V6 (VIN 4) | FA, FB, FC, FD, FE, FF, FG, FH, FJ, FK | ||
| 4.3L V6 (VIN T) | UAC, UAH, UAL | ||
| 5.0L V8 (VIN H) | CFA, CFB, CFC, CFD, CFF, CFH, CFR, CFT, CFW, CFY, CF2, CRA, C2R, C2S, C2T, C2U, C2W | ||
| 5.0L V8 (VIN 7) | CEJ, CFK, CFM, CFN | ||
| 5.7L V8 (VIN N) | VAB, VAC, VAD, VAK, VAL, VAM, VAN, VAP, VAS, VAU, VAW, VAX, VAY, VAZ, VBA, VBB, VBC, VBP, VBU, VBW | ||
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