Free 1991 Chevrolet Blazer VIN Decoder

How to decode a 1991 Chevrolet Blazer VIN

Characters 1-3 of a 1991 Chevrolet Blazer VIN

World Manufacturer Identifiers (WMIs) are a unique series of three characters assigned by the Society of Automotive Engineers (SAE) to identify vehicle manufacturers globally. For the 1991 Chevrolet Blazer, the WMI, “1GN”, signifies that General Motors LLC is the manufacturer. This indicates that the vehicle is a Multipurpose Passenger Vehicle (MPV), designed and built in Warren, Michigan, United States. Specifically, for vehicles built between 1987 and 2005, this identifier helps to quickly determine the manufacturer and vehicle type, facilitating vehicle tracking, registration, and recall procedures. WMIs are a critical part of the larger 17-character Vehicle Identification Number (VIN) system, providing essential information about the vehicle’s origin at a glance.

List of WMI Codes for a 1991 Chevrolet Blazer

WMI: 1GN

• Model Years Covered: 1987-2005
• Example VIN: 1GNEV18K0MF146752
• Manufacturer Name: General Motors LLC
• Vehicle Type: Multipurpose Passenger Vehicle (MPV)
• City: Warren
• State or Province: Michigan
• Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 1991 Chevrolet Blazer VIN

These characters correspond to components like:

• Engine type
• Transmission
• Model or trim
• Body style
• Gross vehicle weight range

Below find the known vehicle descriptor codes for a 1991 Chevrolet Blazer:

Auto manufacturers have some discretion to decide how they want to code this section, but its contents and decoded results are generally consistent.

Character 9 is the “check digit” in a 1991 Chevrolet Blazer VIN.

Based on a formula developed by the US Department of Transportation, it helps reduce fraud by ensuring the validity of the VIN.

10th Character in the 1991 Chevrolet Blazer VIN — Year Code

11th Character in the 1991 Chevrolet Blazer VIN — Plant Code(s)

Known 1991 Chevrolet Blazer Assembly Factory VIN Code(s)

VIN Characters 12 - 17 of a 1991 Chevrolet Blazer

The final 6 characters in a 1991 Chevrolet Blazer’s 17-digit VIN are its serial number, which will be unique to every vehicle.

What info can a 1991 Chevrolet Blazer VIN reveal?

• Model Year: The VIN can reveal the vehicles model year being the year 1991, providing insights into the age and potential market value of the vehicle.
• Vehicle Type and Body Class: The VIN highlights the vehicle as a Multipurpose Passenger Vehicle with a specific designation as a Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV), offering detailed insights into the vehicle’s primary use and body class design.
• Engine Specifications: Detailed engine information includes a V-Shaped engine configuration, 4.3L displacement, and it operates with a Throttle Body Fuel Injection (TBI) system, identifying the vehicle’s engine as designed by CPC with six cylinders, offering insights into the vehicle’s power and performance characteristics.
• Fuel Type: The primary fuel type for this vehicle is Gasoline, indicating the kind of energy source it uses for operation and fueling.
• Drive Type and Brake System: The VIN mentions a 4x2 drive type combined with a Hydraulic brake system, showcasing the drivetrain and braking mechanics, providing insights into the vehicle’s handling and stopping capabilities.
• Manufacturing Details: The assembly location is pinpointed to Shreveport, Louisiana, United States, under a plant company noted as NA - Truck Platform, offering insights into the vehicle’s production origin and assembly details.
• Model Specifics: The VIN encodes specific details such as the model name “Blazer,” series “Small Conventional Cab,” and trim “1/2 ton nominal,” providing a comprehensive overview of the vehicle’s model-related specifications, offering insights into the specific version and features of the vehicle.

Sample VIN Decode Report for a 1991 Chevrolet Blazer

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