How to decode a 1998 GMC Yukon VIN

Characters 1-3 of a 1998 GMC Yukon VIN

The World Manufacturer Identifier (WMI) is a unique code that forms the first three characters of the Vehicle Identification Number (VIN), designating the manufacturer and providing specific information about the vehicle. For the 1998 GMC Yukon, the WMI “1GK” signifies a vehicle manufactured by General Motors LLC in the United States, specifically in Warren, Michigan. This code reflects that the vehicle is classified as a Multipurpose Passenger Vehicle (MPV), indicating its designed usage and capabilities. The WMI is pivotal in identifying vehicles globally, offering essential data such as the make, country of manufacture, and vehicle type, crucial for regulatory, service, and manufacturing purposes. This system ensures that each vehicle can be uniquely identified and traced back to its manufacturer, model year, and production details.

List of WMI Codes for a 1998 GMC Yukon

WMI: 1GK

Model Years Covered: 1992-2024
Example VIN: 1GKEK13R0WJ702536
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 1998 GMC Yukon 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 Yukon:

Known VDS for a 1998 GMC Yukon
EK13R	EC13R

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 Yukon 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 Yukon VIN — Year Code

Year Code	Year
W	1998

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

Known 1998 GMC Yukon Assembly Factory VIN Code(s)

Plant Code	Plant City	Plant State	Plant Country	Plant Company Name	Example VIN
J	Janesville	Wisconsin	United States	Gm Truck Group	1GKEK13R0WJ702536
R	Arlington	Texas	United States	Gm Truck Group	1GKEK13R1WR513492

VIN Characters 12 - 17 of a 1998 GMC Yukon

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

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How to find a 1998 GMC Yukon’s VIN?

Locating the VIN number on your 1998 GMC Yukon is key for identification. Here’s how to find it:

Look at the dashboard on the driver’s side of your GMC Yukon, near where the windshield meets the dash. You can usually see the VIN by looking through the windshield from outside.
Open the driver’s side door and inspect the door jamb. There should be a sticker or plate on the door pillar with the VIN for your 1998 GMC Yukon.
Check the frame of the vehicle. The VIN may be stamped onto the chassis under the hood, or it could be on the frame near the engine.
Examine the paperwork associated with your GMC Yukon, such as the title, registration, or insurance documents, where the VIN should be clearly listed.
Look in the rear wheel well above the tire. In some vehicles, the VIN might be viewable from this angle etched into the chassis or the body of the car.

What info can a 1998 GMC Yukon VIN reveal?

Model Year: The VIN can reveal the vehicles model year being the year 1998, providing insights into the age and potential market value of the vehicle.
Vehicle Type and Body Class: The VIN may indicate that the vehicle falls into the category of Multipurpose Passenger Vehicles and specifically as Sport Utility Vehicles (SUVs)/Multi-Purpose Vehicles (MPVs), offering insights into the vehicle’s design and purpose.
Engine Details: Engine specifications such as a V-Shaped configuration with a displacement of 5.7L (5700cc or 347.835ci) and an engine from WRN with 8 cylinders are encoded within the VIN, providing valuable information about the vehicle’s power and performance capabilities.
Drive Type: The VIN can reveal the drive type, showcasing vehicles with 4WD/4-Wheel Drive/4x4 capabilities, offering insights into the vehicle’s handling and off-road capability.
Manufacturing Details: It provides insight into the manufacturing location, including the city (Janesville), state (Wisconsin), country (United States), and the plant name (GM Truck Group), potentially offering historical and geographical context for the vehicle.
Fuel System: Details about the fuel system, such as the use of Multipoint Fuel Injection (MPFI), are typically included within the VIN data, which can offer insights into the vehicle’s fuel efficiency and performance.
Gross Vehicle Weight Rating: The VIN can identify the gross vehicle weight rating, classifying vehicles within specific weight classes, like Class 2E: 6,001 - 7,000 lb (2,722 - 3,175 kg), providing important information about the vehicle’s weight capacity and classification.

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Sample VIN Decode Report for a 1998 GMC Yukon

Vehicle Spec	Value
Body Class	Sport Utility Vehicle (SUV)/Multi-Purpose Vehicle (MPV)
Brake System Type	Hydraulic
Displacement (CC)	5700.0
Displacement (CI)	347.83534133997
Displacement (L)	5.7
Doors	4
Drive Type	4x2
Engine Configuration	V-Shaped
Engine Manufacturer	WRN
Engine Number of Cylinders	8
Fuel Delivery / Fuel Injection Type	Multipoint Fuel Injection (MPFI)
Gross Vehicle Weight Rating From	Class 2E: 6,001 - 7,000 lb (2,722 - 3,175 kg)
Model	Yukon
Model Year	1998
Plant City	Arlington
Plant Company Name	GM Truck Group
Plant Country	United States
Plant State	Texas
Series	Conventional Cab
Trim2	1/2 ton nominal
Vehicle Descriptor	1GKEC13R*WR
Vehicle Type	Multipurpose Passenger Vehicle
Sample_VIN	1GKEC13R3WR510249