Parts Catalog Software vs a Parts Finder Built Into Your Store

Equipment owners rarely know the name of the part they need. They know the machine, maybe the serial number, and what broke. Manufacturers and dealers have two main ways to turn that into an order online. Parts catalog software publishes exploded diagrams with numbered callouts tied to part numbers. A parts finder built into the store starts from the machine and narrows the catalog to parts that fit, with price, stock and checkout on the same page. Which one you lead with shapes your dealer ecommerce portal, your catalog data work and how parts orders reach your ERP.

This guide compares the two for equipment manufacturers and dealers: what each does, the fitment data both depend on, search, dealer pricing, ordering, integration with ERP and PIM, warranty and returns, and when it makes sense to run both.

What illustrated parts catalog software does

Illustrated parts catalog (IPC) software turns engineering data into a browsable catalog. The core is the exploded view: an illustration of an assembly with numbered callouts, each linked to a part number, description and quantity. An interactive parts catalog makes those callouts clickable hotspots, adds zoom and search, and usually works on a tablet in the field.

Most IPC platforms are built around technical publications. They import bills of materials from engineering or the ERP, manage illustrations, track supersessions when one part replaces another, and filter pages by serial number effectivity, so a technician sees the assembly as it was built for that machine. Many include a parts list or cart that produces a quote, emails a dealer or passes the list to another system.

IPC software is strong at visual identification in complex assemblies, it is a familiar tool for service technicians, and it gives dealers one place to find diagrams and manuals. Its limits vary by product, but they tend to show up in the same places: pricing is often list price or missing, stock is rarely live, checkout and payment on account are handed off, and catalog pages inside a viewer are often invisible to search engines.

What a parts finder in your store does

A parts finder starts from the customer's equipment. The buyer picks a model, enters a serial number, and the store shows only the parts and attachments that fit. Every part has its own product page with price, availability and an add-to-cart button, and the order goes through the same checkout, account pricing and ERP integration as everything else in the store.

The B2B parts finder we built for a Fortune 500 equipment manufacturer on Magento Commerce shows what that involves:

• Shop by model and serial number. The customer identifies the machine once, and the catalog narrows to the parts and attachments that fit it.
• Serialized compatibility mapping. Parts are mapped to the serial number ranges they fit, and universal parts are flagged to show for every serial number.
• Ranking that favors the exact fit. Scoring rules keep universal parts from outranking machine-specific matches, and out-of-stock and non-orderable items drop to the end of results.
• Predictive search. A dedicated ElasticSearch engine suggests parts and categories after three characters, with tuned weights on seven attributes buyers search, including SKU, product name, descriptions, specifications and dimensions.
• Attachment matching. The same model and serial matching extends to attachments and accessories.
• Layered navigation and search redirects. Filters narrow a result set quickly, and common keywords redirect straight to the right page.

Fitment data is the real project

Both tools are only as good as the data that says which part fits which machine. Most manufacturers hold that data in pieces: engineering bills of materials, the ERP item master, service bulletins and spreadsheets kept by the parts team.

Fitment data	What it answers	Where it often lives
Model	Which machines can use this part	ERP item master, engineering BOMs
Serial number range	Which production runs it fits	Engineering change records, service bulletins
Attachment compatibility	Which attachments fit which machines	Product management spreadsheets
Supersession	Which part number replaces an old one	ERP or the IPC
Universal flag	Parts that fit every serial number	Often implied rather than recorded
Freight class	How a large or heavy part ships	ERP or the shipping team

For the manufacturer above, the hard prerequisite was a serial-aware catalog: every part mapped to the serial ranges it fits, with universal parts flagged. Automated imports of parts data, along with freight zone and LTL mapping, keep that catalog accurate as parts change, get superseded or reach end of life.

If you already maintain serial effectivity for an IPC, the same data can feed a parts finder in the store. Keep one source for it. Two copies of fitment data drift apart, and the store and the catalog start giving dealers different answers.

Search relevance

Parts buyers search in ways general catalog search handles badly: partial part numbers, typos, sizes, and names that differ from the engineering description. Default search treats every field the same, so universal parts, scale models and out-of-stock items crowd out the one right answer. A store parts finder fixes this with field weights, typo tolerance and rules that demote universal and unavailable parts. Most IPC tools search part numbers and descriptions inside the catalog, which suits technicians who already know what they are looking for.

Dealer and B2B pricing

Pricing is where the two tools differ most. A store already knows who the buyer is: customer groups, company accounts, dealer net pricing, contract prices from the ERP and catalogs restricted by account. For the same manufacturer, customer-group pricing and visibility shape the store for dealer and business accounts. On Adobe Commerce, native B2B features such as company accounts, shared catalogs and negotiable quotes cover much of what dealer accounts need.

IPC software usually shows list price, or a price from the ERP that does not reflect dealer terms. If dealers must see their net price before they order, that logic belongs in the store or in a live ERP call. And if you sell direct as well as through dealers, the store has to decide which buyers see which prices and where consumer orders go, which we cover in our guide to selling direct without breaking your dealer network.

Ordering and checkout

An IPC cart typically ends in a parts list, a quote request or an email to a dealer, and someone re-keys it into the ERP. A store parts finder ends in checkout: PO numbers, payment on account, freight and LTL shipping for heavy parts, order history and reorders. The difference matters most for dealers who buy parts every week and want to see stock and ship dates before they commit.

Integration with ERP and PIM

Whichever tool you choose, decide which system owns each piece of data:

• ERP: part numbers, prices, stock, orders, invoices and, in many cases, supersessions.
• PIM: descriptions, images, specifications and marketing content.
• IPC or technical publications: illustrations, assembly structure and serial effectivity.
• Store: presentation, search, accounts and checkout.

The store should consume fitment and part data, not become a second place to edit it.

Warranty and returns

Warranty registration and claims often live in dealer management or service systems, and IPC software rarely touches them. A store can carry more of the after-sale process. For the same manufacturer we built extended warranties into checkout, with generated proof-of-coverage documents and confirmation emails, along with RMA and freight returns and end-of-life product notifications. Serial-aware compatibility is also the best defense against wrong-part returns.

Parts catalog software vs a parts finder: side by side

Factor	Parts catalog software (IPC)	Parts finder in your store
Starting point	A diagram of an assembly	The customer's machine: model and serial number
Best for	Identifying parts visually, service technicians	Buying parts, repeat dealer orders
Fitment data	Serial effectivity in the catalog	Serial ranges mapped to products in the store catalog
Search	Part number and description lookup	Predictive, typo-tolerant, ranked by fit
Pricing	Often list price or none	Customer-specific and dealer pricing
Stock	Rarely live	Fed from the ERP
Ordering	Parts list, quote or handoff to a dealer	Cart, checkout, PO numbers, payment on account
Search engines	Viewer pages often not indexed	Each part has an indexable product page
Usual owner	Technical publications or service	Ecommerce or sales
Data source	Engineering BOMs and illustrations	ERP item master, PIM and fitment data

When to use both

Many manufacturers keep their IPC for technicians and add a parts finder for buying. The two work best when they are connected:

• Link callouts to product pages. Each hotspot in a diagram links to the part's page in the store, so identification ends in a cart instead of a re-keyed list.
• Share one source of fitment data. Serial effectivity maintained for the IPC feeds the parts finder, or the other way round.
• Route by question. Buyers who know their model and serial number go to the finder. Buyers who need to see the assembly open the diagram.
• Keep one login. Dealers should not need separate accounts for the catalog and the store.

If you are choosing where to start, look at how your customers identify parts today. If most know their machine but not the part name, a parts finder in the store will carry more orders. If most orders start with a technician looking at an assembly, keep the IPC and connect it to the store.

Questions to answer before you choose

1. How do customers identify a part today: by model and serial number, by part number, or from a diagram?
2. Where does fitment data live, and who maintains it?
3. Do dealers need their net price and live stock before ordering?
4. Which orders go to dealers, and which do you fulfill directly?
5. Which system owns part numbers, supersessions and prices?
6. How will warranty, returns and end-of-life notices work after the sale?

Our manufacturing ecommerce page covers direct and dealer sales for equipment makers more broadly.

Frequently asked questions

What is parts catalog software?

Parts catalog software publishes a manufacturer's parts data as a searchable catalog, usually with exploded diagrams that link numbered callouts to part numbers. It is often called illustrated parts catalog (IPC) software, and dealers, service technicians and equipment owners use it to identify replacement parts.

What is an interactive parts catalog?

An interactive parts catalog is an illustrated parts catalog with clickable hotspots on each diagram, plus zoom, search and filtering by model or serial number. Selecting a callout shows the part number and description, and in many tools adds the part to a list or cart.

Can a parts finder in an ecommerce store replace an IPC?

For many buyers, yes. If customers know their model and serial number, a store parts finder with serial-aware compatibility gets them to the right part and through checkout. Technicians working on complex assemblies often still need diagrams, so many manufacturers keep both and link them.

What data does a parts finder need?

At minimum, every part mapped to the models and serial number ranges it fits, with universal parts flagged, plus attachment compatibility, supersessions and clean product attributes for search. Prices, stock and dealer terms come from the ERP.