# Vehicle Identification Numbers (VIN codes)/AM General Hummer/VIN Codes

This page is for decoding AM General Hummer & Hummer H1 VINs only. For Hummer H2 & H3, see the GM VIN page.

## General Template for AM General Hummer/Hummer H1 VIN format (1992-2006)

| Position | Sample | Description |
| 1 | 1 | Nation of Origin |
| 2 | 3 | Manufacturer |
| 3 | 7 | Vehicle type |
| 4 | Z | Engine Type |
| 5 | A | Transmission |
| 6 | 8 | Model Code & Body Style |
| 7 | 4 | Model Code & Body Style |
| 8 | 3 | GVWR |
| 9 | 0 | Check digit |
| 10 | Y | Model year |
| 11 | E | Assembly Plant |
| 12 | 0 | Production sequence number |
| 13 | 0 | Production sequence number |
| 14 | 5 | Production sequence number |
| 15 | 9 | Production sequence number |
| 16 | 4 | Production sequence number |
| 17 | 3 | Production sequence number |

### Nation of Origin

Position 1 :
| VIN code | Description |
| 1 | USA |

### Manufacturer

Position 2 :
| VIN code | Description |
| 3 | AM General |

### Vehicle type

Position 3 :
| VIN code | Description |
| 7 | Commercial vehicles |

### Engine Type

Position 4 :
| VIN | Size | Type | Fuel | Valvetrain | Engine Family/Notes/Applications |
| X | 6.2L | V8 | Diesel | OHV | Indirect injection. GM Detroit Diesel V8 (GM RPO code LL4). Version for vehicles over-8,500 lb. GVWR. ('92-'93). |
| Y | 6.5L | V8 | Diesel | OHV | Indirect injection. GM Detroit Diesel V8 (GM RPO code L57). Version for vehicles over-8,500 lb. GVWR. ('94-'98). |
| D | 5.7L | V8 | Gas | OHV | TBI. GM Gen I Chevrolet Small-Block V8 (GM RPO code L05). (Optional: '95-'96). |
| Z | 6.5L | V8 Turbo | Diesel | OHV | Indirect injection. GM Detroit Diesel V8 (GM RPO code L65). Version for vehicles over-8,500 lb. GVWR. (Optional: '96-'98, Standard: '99 - Mid '01). |
| F | 6.5L | V8 Turbo | Diesel | OHV | Indirect injection. GM Detroit Diesel V8 made by AM General subsidiary General Engine Products LLC. (Mid '01 - '04 & '06 Fleet models). |
| P | 6.6L | V8 Turbo | Diesel | OHV, 32 valve | Common-rail Direct injection. Duramax 6600 V8 engine (GM RPO code LLY). '06 H1 Alpha. |
TBI=throttle-body injection

### Transmission

Position 5 :
| VIN code | Description |
| E | GM 3L80 3-speed automatic. ('92-'93). |
| A | GM 4L80-E 4-speed automatic - electronically controlled. ('94-'04 & '06 Fleet models). |
| H | Allison 1000 series 5-speed automatic - electronically controlled. ('06 H1 Alpha). |

### Model Code & Body Style

Position 6-7 :
| VIN code | Description |
| 55 | KSC2: 2-Passenger, 2-Door Hard Top w/Enlarged (Extended) Cab - K-series (Commercial/Fleet only model) ('02-'04, '06) |
| 56 | KSC4: 4-Passenger, 4-Door Hard Top - K-series (Commercial/Fleet only model) ('02-'04, '06) |
| 57 | KSCS: 4-Passenger, 4-Door Enclosed Wagon - K-series (Commercial/Fleet only model) ('03, '06) |
| 82 | HMC2: 2-Passenger, 2-Door Hard Top ('92-'93) |
| 82 | VLC2: 2-Passenger, 2-Door Hard Top - Value Leader (Recruit Series) ('94-'96) |
| 83 | HMC4: 4-Passenger, 4-Door Hard Top ('92-'01 & a single '02 model) |
| 84 | HMCS: 4-Passenger, 4-Door Enclosed Wagon ('92-'04) |
| 84 | HMDS: 4-Passenger, 4-Door Enclosed Wagon ('06 H1 Alpha) |
| 85 | HMCO: 4-Passenger, 4-Door Open Top w/half doors & plastic windows ('92-'93) |
| 85 | VLCO: 4-Passenger, 4-Door Open Top w/half doors & plastic windows or optional full-height hard doors & glass windows - Value Leader (Recruit Series) ('94) |
| 85 | VLCO: 4-Passenger, 4-Door Open Top w/half doors & plastic windows - Value Leader (Recruit Series) ('95-'96) |
| 86 | HMCF: 2-Passenger, 2-Door Hard Top - Fleet/Industrial ('93) |
| 87 | HMR2 (VLC2): 2-Passenger, 2-Door Hard Top - Value Leader (Recruit Series) ('93) |
| 88 | HMRO (VLCO): 4-Passenger, 4-Door Open Top w/half doors & plastic windows - Value Leader (Recruit Series) ('93) |
| 89 | XLC2: 2-Passenger, 2-Door Hard Top w/Enlarged (Extended) Cab ('94-'01) |
| 90 | HMCO: 4-Passenger, 4-Door Open Top w/full-height hard doors & glass windows ('95-'04) |
| 90 | HMDO: 4-Passenger, 4-Door Open Top w/full-height hard doors & glass windows ('06 H1 Alpha) |
| 91 | HMSB: 4-Passenger, 4-Door Slant Back ('00) |

### GVWR

Position 8 :
| VIN code | Description |
| 3 | Class 3: 10,001 - 14,000 lb. GVWR |

### Assembly Plant

Position 11 :
| VIN code | Description |
| E | Mishawaka, Indiana |