Free 1998 GMC Sierra VIN Decoder

How to decode a 1998 GMC Sierra VIN

Characters 1-3 of a 1998 GMC Sierra VIN

World Manufacturer Identifiers (WMIs) are unique codes that identify the manufacturer of a vehicle, providing information about where and by whom a vehicle was made. For the 1998 GMC Sierra, the WMIs are “1GT” and “2GT,” indicating that these trucks were manufactured by General Motors LLC in Warren, Michigan, United States. The “1GT” prefix is primarily used for trucks produced from 1989 to 2024, while “2GT” was used from 1989 to 2009 and again in 2018. These codes reveal not only the maker and location of manufacture but also highlight the vehicle type, in this case, indicating that the GMC Sierra is classified as a truck. This system of identification allows for a standard method of recognizing vehicles globally, providing essential data for registration, record-keeping, and recall purposes.

List of WMI Codes for a 1998 GMC Sierra

WMI: 1GT

• Model Years Covered: 1989-2024
• Example VIN: 1GTEK19R0WE501246
• Manufacturer Name: General Motors LLC
• Vehicle Type: Truck
• City: Warren
• State or Province: Michigan
• Country: United States WMI: 2GT
• Model Years Covered: 1989-2009, 2018
• Example VIN: 2GTEC19R0W1545293
• Manufacturer Name: General Motors LLC
• Vehicle Type: Truck
• City: Warren
• State or Province: Michigan
• Country: United States

Characters 4-8 are the Vehicle Descriptor Section (VDS) of a 1998 GMC Sierra 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 1998 GMC Sierra:

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 1998 GMC Sierra 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 1998 GMC Sierra VIN — Year Code

11th Character in the 1998 GMC Sierra VIN — Plant Code(s)

Known 1998 GMC Sierra Assembly Factory VIN Code(s)

VIN Characters 12 - 17 of a 1998 GMC Sierra

The final 6 characters in a 1998 GMC Sierra’s 17-digit VIN are its serial number, which will be unique to every vehicle.

What info can a 1998 GMC Sierra VIN reveal?

• Model Year: The VIN can reveal the vehicle’s model year, suggesting it is from the year 1998, potentially indicating its age and market value.
• Body Class and Cab Type: The VIN indicates the vehicle is a Pickup with a Crew/Super Crew/Crew Max cab type, providing insights into the vehicle’s function and capacity.
• Drive Type and Engine Details: The VIN reveals the vehicle has a 4WD (4-Wheel Drive/4x4) system and is powered by a V-Shaped 8-cylinder diesel engine, possibly indicating its power and off-road capability.
• Engine Displacement and Turbo Feature: Specific engine information such as a 6.5L (396.65433661575 CI) displacement and the presence of a turbocharger might provide clues about the vehicle’s performance characteristics.
• Fuel Type: The primary fuel type is Diesel, which may give an indication of fuel efficiency and expected performance.
• Manufacturing Information: Manufacturing details from the VIN suggest the truck was manufactured in Flint, Michigan, United States, by GM Truck Group, potentially implying its origins and quality standards.
• Gross Vehicle Weight Rating: Classified as Class 2H: 9,001 - 10,000 lb (4,082 - 4,536 kg), the VIN provides crucial information for understanding the vehicle’s capacity and regulatory classification.

Sample VIN Decode Report for a 1998 GMC Sierra

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