The automotive aftermarket industry is a bustling ecosystem of manufacturers, distributors, retailers, and customers—all working together to ensure the right parts reach the right vehicles. But with tens of millions of vehicle configurations and countless parts on the market, organizing this vast landscape can feel like trying to assemble a jigsaw puzzle without the picture on the box. This is where ACES (Aftermarket Catalog Exchange Standard) and PIES (Product Information Exchange Standard) come in, offering clarity, consistency, and efficiency.

If you’re new to these standards, don’t worry. This guide breaks down ACES and PIES into simple terms, covering their purpose, benefits, and practical applications. Let’s get started!

What Are ACES and PIES?

ACES and PIES are both data standards created by the Auto Care Association to standardize information within the automotive aftermarket. While they work closely together, each standard serves a distinct purpose:

ACES (Aftermarket Catalog Exchange Standard)

ACES focuses on fitment data—information that tells you what parts are compatible with specific vehicles. For example, if you need a brake pad for a 2020 Toyota Camry, ACES ensures that the data reflects exactly which part fits this model based on year, make, model, and engine type.

PIES (Product Information Exchange Standard)

On the other hand, PIES organizes product details. This includes information like product dimensions, weight, price, UPC codes, and marketing descriptions. For instance, if you’re buying a brake pad, PIES ensures the product listing on a website or in a catalog shows accurate specifications and relevant images.

Key Differences Between ACES and PIES

Feature	ACES (Fitment Data)	PIES (Product Data)
Focus	Vehicle compatibility	Product-specific details
Data Examples	Year, make, model, engine type	Pricing, weight, materials
Applications	Ensures the right fit	Describes the product
Core Database Used	VCdb	PCdb, PAdb

Together, ACES and PIES ensure data flows seamlessly between manufacturers, distributors, and retailers, minimizing errors and improving customer satisfaction.

Why Are ACES and PIES Important?

Before ACES and PIES, suppliers and distributors used different systems for naming vehicles and classifying parts. This lack of standardization often led to confusion, mismatched data, and errors. Suppose, one company might list a vehicle as “Chevy” while another calls it “Chevrolet.” So, the multiply that discrepancy across hundreds of listings, and the result is chaos.

With ACES and PIES, the industry now operates on a shared “language,” ensuring consistency and accuracy at every stage of the supply chain. Here’s why it matters:

For Manufacturers: Develop products with confidence, knowing fitment and product data are standardized.
For Distributors and Retailers: Accurately stock and display compatible products, reducing inventory mismatches.
For Customers: Find the right parts faster, with fewer headaches when shopping online or in-store.

Benefits of ACES and PIES

Standardized Communication – Everyone in the supply chain speaks the same data “language,” reducing confusion and errors.

Enhanced Customer Experience – Accurate fitment and product information ensures customers get the right part the first time around.

Improved Efficiency – Businesses save time by automating data validation and updates rather than manually correcting mistakes.

Scalability – Whether you’re a small shop or a large distributor, ACES & PIES make it easier to expand your product offerings and manage data growth.

Seamless E-commerce Integration – These standards make it simple to integrate product and fitment information into online marketplaces, helping businesses succeed in the digital age.

How Do Databases Fit Into ACES and PIES?

To power this standardized system, the Auto Care Association maintains several key databases. These databases ensure the accuracy, structure, and consistency of vehicle and product details:

1. VCdb (Vehicle Configuration Database)

The VCdb is the foundation of ACES. It contains detailed vehicle configuration data, including:

Make, Model, Year
Engine type and drivetrain
Transmission and trim options

Whenever fitment data (ACES) is built, it pulls directly from the VCdb to ensure vehicles are classified accurately. This is particularly useful for managing model-specific nuances, such as differing engine options for the same car.

2. PCdb (Parts Configuration Database)

The PCdb plays a critical role in PIES, standardizing how automotive parts are described. It:

Assigns consistent part numbers and descriptions
Organizes product hierarchy, such as categorizing parts into “brakes,” “filters,” or “suspension”

With PCdb, businesses can ensure parts are uniformly described across retailers, streamlining the buying process for customers.

3. PAdb (Product Attribute Database)

This database focuses on product attributes, such as dimensions, materials, and weight. For example:

A brake pad might include details like its width, weight, and material composition.
PAdb ensures sellers have the specific information needed to create detailed and accurate listings.

4. Qdb (Qualifier Database)

The Qdb provides additional context for both fitment and product data. It includes qualifiers like:

Trim and drivetrain types in fitment data (e.g., front-wheel versus all-wheel drive)
Application notes for specific parts (e.g., “Fits vehicles with rear disc brakes”)

This helps ensure compatibility even in complex situations.

By unifying these databases, ACES and PIES deliver unparalleled data accuracy, minimizing returns, and building customer trust.

Why Should You Adopt ACES and PIES?

Implementing ACES and PIES is practically a requirement for businesses operating in the automotive aftermarket. Here’s how they can help your business:

Prevent Costly Errors: Without standardized data, you risk incorrect listings, high return rates, and frustrated customers. ACES and PIES reduce the likelihood of these issues.

Boost Sales: Customers are more likely to buy—and keep—the right product when listings are clear, detailed, and accurate.

Stay Competitive: Large distributors and retailers already require ACES and PIES compatibility. To compete, smaller businesses must also adapt.

Streamline Operations: Automating processes like fitment matching and product cataloging saves time and resources.

Final Thoughts and Next Steps

ACES and PIES might seem complex at first, but their role in making the automotive aftermarket more efficient, reliable, and customer-focused can’t be overstated. By standardizing fitment and product data, these systems eliminate errors, increase sales, and improve overall satisfaction for everyone involved.

If you’re new to ACES and PIES, start by understanding your product and customer needs. Invest in learning about VCdb, PCdb, and other databases that power these standards. Partner with PCFitment, we specialize in creating ACES/PIES files, and manage your entire digital operation. We make sure that your data meets Auto Care Association standards.

Accurate and streamlined data isn’t just a convenience—it’s a necessity for thriving in today’s competitive automotive aftermarket. Are you ready to step up?