Parts lookup by machine is the feature that decides everything.

Two customers, two completely different searches

There are only two people buying parts from you online, and they behave nothing alike. Building for one and ignoring the other is the most common design mistake in dealer ecommerce.

The first knows the part number. They want the fastest possible path from a number to a checkout, and every extra step loses them. The second does not know the part number and never will. They know the machine, they know what broke, and they need to be walked to the right part.

• Part number search must tolerate spaces, dashes, case and superseded numbers
• Model search must accept the model plate wording, not your internal naming
• Both paths must end on the same product page, with fitment confirmed on screen

What fitment search is made of

Fitment is a data problem dressed up as a search problem. The interface is straightforward once the relationships underneath it are correct, and hopeless when they are not.

• A clean machine model hierarchy: brand, family, model, serial range
• A parts-to-model mapping that survives brand-specific naming
• Supersession chains resolved so old numbers land on current parts
• Diagram groupings so customers can navigate visually
• A search index tuned for exact-match part numbers and fuzzy model names
• Fitment confirmation displayed on the product page, not buried in a spec table

Why multi-brand makes it harder

One brand is a mapping exercise. Five brands is a normalisation exercise, because every manufacturer describes machines and parts in its own vocabulary, at its own level of detail, with its own idea of what a serial break means.

For Scholten's Equipment, Kubota, CLAAS and JCB data all arrived differently. Each was connected on its own terms, then normalised into a single model hierarchy so a customer could search once and see everything the dealership could sell them. Over 3.5 million parts ended up behind one search box.

What good fitment search does to the business

The direct effect is fewer wrong-fit returns, which is where parts ecommerce margin usually goes to die. The indirect effect is bigger: customers stop calling the counter to ask whether a part fits.

Scholten's Equipment recovered roughly 200 hours of counter time that had been spent answering exactly that question. That time did not disappear, it went back into selling.