The GM Global EPC (Electronic Parts Catalog) is the proprietary software system used by General Motors dealerships, independent repair shops, and parts distributors worldwide. It serves as the central digital repository for every component used in GM vehicles—from Chevrolet and GMC to Buick and Cadillac, as well as legacy brands like Pontiac and Oldsmobile. The system allows users to identify, locate, and order replacement parts with precision, utilizing Vehicle Identification Numbers (VINs) to ensure 100% part accuracy.
The GM Global EPC is the industry standard for GM parts identification. It bridges the gap between the engineering complexity of modern automobiles and the practical need for repair and maintenance. Whether for a high-volume dealership or a specialized independent garage, the EPC remains an indispensable tool for ensuring the right part is ordered the first time.
The GM Global EPC (Electronic Parts Catalogue) is the official system used by dealerships to identify genuine OEM parts for General Motors vehicles worldwide, covering models from 1953 to 2026.
The best resource for a "how-to" is the official GM Global EPC Quick Reference Guide provided by Snap-on Business Solutions. 1. Core Layout & Navigation
The interface is split into three main sections to keep parts and diagrams side-by-side:
Illustration (Middle): Features high-quality exploded views of vehicle assemblies. You can click "callouts" (numbered tags) in the image to instantly highlight the corresponding part in the list.
Parts List (Left/Right): Displays detailed part information, including OEM numbers, cross-references, and supersession data (part history).
Shopping List (Bottom): Acts as your "pick list." You can add parts here to create customer estimates or transfer them directly to a Dealer Management System (DMS). 2. Essential Search Features
UltraVIN Filtering: Entering a full VIN is the most accurate way to use the EPC. It automatically filters out parts that don't apply to that specific vehicle, including RPO (Regular Production Option) codes.
Jobs Feature: You can work on multiple vehicles at once. Each vehicle search stays open in its own tab, allowing you to switch between them without losing your place.
Single-Use Parts: Look for the "+" icon or the "Single Use" label. This identifies parts (like torque-to-yield bolts or gaskets) that must be replaced every time a component is removed for repair. 3. Pro Tips for Better Results Main EPC Window
The GM Global Electronic Parts Catalogue (EPC) is a powerful, web-based tool used by authorized dealerships, repair shops, and parts specialists to identify, locate, and order genuine parts for General Motors vehicles worldwide (including Chevrolet, GMC, Cadillac, Buick, Holden, Opel, and Vauxhall).
Note: Access to the official GM Global EPC is generally restricted to commercial accounts and requires a paid subscription, often through portals like GM GlobalConnect or authorized third-party platforms. 1. Getting Started: Access & Login
Official Access: Dealerships and authorized repairers use GM GlobalConnect to access the EPC. You will need a user ID and password. gm global epc -electronic parts catalogue-
Subscription Alternatives: Independent shops often use third-party subscription services (e.g., PartsBridge or Infomedia) that host the GM EPC data.
Browser Compatibility: The system often requires specific browser settings (usually Internet Explorer or Chrome with IE emulation) to manage active content. 2. Vehicle Identification (VIN Search)
The most efficient way to use the EPC is by using the Vehicle Identification Number (VIN).
Enter VIN: Locate the 17-character VIN on the vehicle dash or door jamb and enter it into the "VIN" field.
Verify Vehicle: The system will decode the VIN, showing you the exact year, make, model, engine, and transmission type.
Filter Parts: Once the VIN is loaded, the catalogue automatically filters out parts that do not fit your specific vehicle, preventing ordering errors. 3. Searching for Parts You can find parts in the EPC through several methods:
Search by Part Number: If you have an old part number, enter it to see its price, description, and if it has been updated to a new number (supersession).
Search by Description: Type the name of the part (e.g., "alternator," "brake pad") to find it in the catalogue.
Visual Search (Group Index): Use the illustrated diagrams to locate parts visually. This is ideal when you are unsure of the exact name. 4. Understanding Catalog Diagrams
Exploded Views: The EPC shows diagram layouts ("exploded views") that show how components fit together.
Reference Numbers: The numbers on the diagram correspond to the part number list below it.
Zoom & Highlight: Use the toolbar to zoom in on complex areas and highlight parts. 5. Identifying Part Numbers & Notes
Part Number (P/N): The 8-digit or 10-digit number needed for ordering. The GM Global EPC (Electronic Parts Catalog) is
Supersession: Note if the part number has been replaced by a newer one.
Usage Notes (RPO Codes): Look for footnotes regarding Regular Production Option (RPO) codes. For example, a part may only fit vehicles with "Option Code FE2" (suspension type). 6. Creating a Parts List/Order
Add to List: As you identify parts, select them to add to your current "List" or "Quote."
Check Stock/Pricing: If connected to your local dealer network, you can check real-time pricing and availability.
Export/Order: Export the list to a PDF or send it directly to a GM dealer for ordering. Tips for Efficient Usage
Check for Supersessions: Always ensure you are using the latest part number, as old numbers might not be available or might have been upgraded.
Verify RPO Codes: Use the RPO list (usually found on the glove box or driver's door) to confirm specific vehicle features (e.g., paint codes, engine type) mentioned in the notes.
Save Vehicle Sessions: You can save your search session to return to it later.
To help you specifically with the GM Global EPC, I need to know:
Are you using a dealer portal (GlobalConnect) or a third-party tool?
If you have a VIN, I can guide you through the process for that specific vehicle.
The GM Global EPC (Electronic Parts Catalogue) is a specialized online platform designed by General Motors to provide authorized parts departments, dealerships, and technicians with comprehensive OEM parts information for Cadillac, Chevrolet, GMC, and Buick vehicles. Launched on an advanced HTML5 platform in 2020, it serves as a worldwide digital repository covering models dating from 1953 to 2026. Key Features and Capabilities
The system is built to improve accuracy and speed at the parts counter through several high-tech tools: The GM Global EPC is the industry standard
VIN Decoding: Users can enter a Vehicle Identification Number (VIN) to filter parts lists precisely for that specific vehicle, reducing the risk of ordering incompatible components.
Intelligent Search: Advanced "type-to-narrow" capabilities allow users to find parts by description, part number, or name, instantly filtering results as they type.
Visual Diagrams: High-quality exploded-view diagrams help identify the exact location and assembly of components.
Multi-Job Management: The unique "Jobs" feature allows users to keep multiple parts look-ups open at once and switch between them with a single click, preventing progress loss during interruptions.
Single-Use Part Identification: New icons highlight parts—such as certain gaskets or bolts—that must be replaced during a repair and cannot be reused. Delivery Methods and Access
The GM Global EPC is available in two primary formats managed by Snap-on Business Solutions:
Web-Based EPC: Accessed via the GM GlobalConnect portal, this version is always up-to-date and does not require manual data installations.
Locally-Installed EPC: Delivered via USB or DVD, this version is ideal for shops with limited internet reliability and includes automated background updates to stay current. Professional Integration
For dealership environments, the EPC integrates directly with most Dealer Management Systems (DMS). This allows parts professionals to:
View real-time inventory levels directly within the catalog. See customer-specific pricing instantly.
Transfer "picklists" (lists of selected parts) directly to the business system for billing and ordering.
While primarily used by dealers, independent repair shops can sometimes access similar information through programs like my GM Partner Perks or by purchasing subscriptions via the ACDelco TDS Portal. EPC(OEM) - GM - Snap-on Business Solutions
Use the "Print Preview" function to generate a clean PDF of the diagram and part list. Send this directly to the customer as a visual estimate—it dramatically increases trust and approval rates.
The GM Global EPC is a web-based, VIN-specific software application designed to identify and order genuine GM replacement parts. Unlike generic aftermarket catalogs, this official system is directly integrated with GM’s manufacturing and engineering data. It allows users to drill down from a specific vehicle (via its VIN) to the exact bolt, bracket, or body panel required for a repair.
It is the digital successor to the old microfiche and paper catalogs, consolidating decades of part numbers for Chevrolet, Buick, GMC, Cadillac, Hummer, Pontiac, Saturn, Saab (certain models), and Holden vehicles sold globally.