2. Aftermarket eCommerce Guide

The Aftermarket eCommerce Guide: Tools and Services for Parts Sellers

Every tool and service an aftermarket parts store runs on, sorted by the job it does, with the picks we would shortlist for each.

See the tools by job
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Who this guide is for

This guide is for people who sell aftermarket parts online: retailers, manufacturers and distributors. A parts store has jobs a general store does not. A shopper with a 2017 F-150 needs to know a tonneau cover fits a 6.5 foot bed before checkout. A brand ships new part numbers every model year in ACES and PIES files. A front bumper ships LTL freight, not in a parcel box. Each row below names one job, when it starts to matter, and the companies we would shortlist for it, with a link to the full list.

Web Shop Manager publishes this guide. Our own products, Web Shop Manager and PartsLogic, are marked Ours. Our partners are marked Partner and listed first in each row. Other companies appear where they are a real option for parts sellers. Facts come from each vendor’s own website, checked in October 2026.

Tools and services for parts sellers, by job

Start with the platform and the fitment data, since every other tool reads from the catalog. Then add the rows that match where your store is losing time or sales.

eCommerce platforms

What it does
Runs the store: catalog, product pages, cart, checkout, customer accounts and dealer pricing.
When you need it
Starting a store, or when fitment, data loading and dealer pricing are all being patched together with apps on your current platform.
Top picks

Compare eCommerce platforms for auto parts

Parts data providers

What it does
Supplies the product and fitment data behind a parts catalog, usually as ACES and PIES files from brands and data services.
When you need it
When you carry more than a handful of brands and typing fitment by hand no longer keeps up with new parts and model years.
Top picks

Compare auto parts data providers

Feed and channel managers

What it does
Sends your catalog to marketplaces and ad channels such as Amazon, eBay, Google Shopping, Meta and TikTok, and brings the orders back.
When you need it
When you sell the same parts in more than one place and inventory or pricing drifts between them.
Top picks

Compare feed and channel managers for auto parts

Shipping and freight

What it does
Rates, labels and tracking for parcels, plus LTL freight quotes for heavy and oversized parts like bumpers, hitches and exhausts.
When you need it
When you ship daily, sell parts too big for a parcel box, or quote freight by phone today.
Top picks

Compare shipping and freight tools for auto parts

Payments and financing

What it does
Takes cards and wallets at checkout and offers pay-over-time options on bigger tickets like lift kits, wheels and tires.
When you need it
Every store needs a processor; add financing when average orders run into the hundreds or thousands of dollars.
Top picks

Compare payments and financing for auto parts

Sales tax software

What it does
Calculates sales tax by address at checkout and helps with filing in the states where you collect.
When you need it
When you ship to customers in several states, or a dealer sends you a resale certificate.
Top picks

Compare sales tax software for auto parts

Email, reviews and loyalty

What it does
Brings shoppers back: email and SMS flows, product reviews on the page, and points or rewards for repeat buyers.
When you need it
Once you have steady traffic and want more of it to come back, or shoppers hesitate because a part has no reviews.
Top picks

Compare email, reviews and loyalty tools for auto parts

Design and development agencies

What it does
Designs and builds the store, migrates the catalog, and connects the tools above.
When you need it
When you replatform, redesign, or need custom work your team does not have time or skills for.
Top picks

Compare eCommerce design and development agencies for auto parts

Marketing agencies

What it does
Runs search engine optimization, paid search and shopping ads, paid social, email and creative for the store.
When you need it
When you have a working store and need more of the right shoppers on it, and nobody in-house owns marketing.
Top picks

Compare marketing agencies for auto parts sellers

Frequently asked questions

What tools does an auto parts store need?

At minimum, an eCommerce platform, a payment processor, shipping rates and labels, and sales tax calculation. Parts sellers also need fitment: year, make and model search backed by product and vehicle data, usually in ACES and PIES formats. Feeds, email, reviews and agencies come next, once the store is selling.

Which should I pick first?

The platform and the fitment data, because every other tool reads from the catalog. A good shipping or email tool cannot fix a catalog where shoppers cannot tell which part fits their vehicle.

What are ACES and PIES?

They are the aftermarket data standards maintained by the Auto Care Association. ACES describes which vehicles a part fits, and PIES describes the product itself: dimensions, images, prices and descriptions. Most aftermarket brands publish in these formats.

Do I need a separate fitment search tool?

It depends on the platform. Some platforms built for parts include year, make and model search; general platforms such as Shopify and BigCommerce add it through an app. Either way, the search is only as good as the fitment data behind it.

How do I ship heavy or oversized parts?

Parcel carriers handle most small parts. Bumpers, hitches, exhausts and bed covers often need LTL freight, so look for a shipping tool that can quote freight at checkout instead of after the order is placed.

Why are some companies marked as partners?

Web Shop Manager publishes this guide, and the companies marked Partner work with Web Shop Manager and have a partner page on our site. Our partners are listed first in each row. Companies we do not partner with are listed where they are a real option for parts sellers.

How often is this guide updated?

We checked each vendor’s own website in October 2026. Prices, plans and features change, so confirm the details with the vendor before you sign.

See fitment working on a real parts catalog

If fitment is the hard part of your store, we can show you how it works on a live catalog, on Web Shop Manager or with PartsLogic on the platform you already run.

Request a Web Shop Manager demo
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