Selling genuine, OE-brand and aftermarket parts online: how each is listed

A car part usually exists in three grades. A genuine part is sold under the carmaker's own brand. An OE-brand part is made by a company that supplies the carmaker, sold under that company's own name. An aftermarket part is made by another company to fit the same car. Our guide to genuine, OEM and aftermarket parts in the UAE explains the differences for buyers, including the price gaps, warranty and counterfeit risks; this page is about how each grade is listed when you sell it.

What matters for listing is that all three can share a part number, or be cross-referenced to the same genuine number. A customer who asks for that number can be offered any of them. So your list has to say, line by line, which grade each part is, and it does that through one column: the brand.

Brand names arrive in every spelling: TOY, TOYOTA GEN, Toyota Genuine, DENSO JP, MANN-FILTER. When we map your file, each spelling is matched to our brand once, and the rule is remembered for every later file. A spelling that says the part is genuine keeps that flag, so a genuine line is kept apart from an aftermarket one at the same number.

If your whole list is one brand, you do not need a brand column at all: tell us the brand in the note when you send the file. If a line has no brand and no note covers it, it is set aside rather than guessed.

The flag matters most where a carmaker and its own supplier share a number. A Toyota line marked genuine and a line from one of Toyota's suppliers under that supplier's own name can both answer the same genuine number. With the flag and the brand each row carries, they stay two offers, each labelled for what it is.

Because grades share numbers, one customer request can meet several lines at once: lines in your own list, or lines in the lists of several suppliers. Each line is a separate offer. It carries its own price, set by our pricing rules from that line's supplier price, and its own readiness time, from the location its warehouse or stock code was mapped to. A customer can be offered more than one of them.

For a supplier, the practical rule is one row per brand and number. Two grades at one number belong in two rows, each with its own brand; one row cannot be two offers. Kept that way, listing every grade you hold adds offers instead of muddling them, and a customer who wants the cheaper known brand and one who wants the carmaker's own box can both be answered from your stock.

Most customers do not ask for an aftermarket number. They ask for the part for their car, and Easy Auto turns that into the carmaker's number first. An aftermarket or OE-brand line is only found if your list says which genuine number it replaces. That one column is the difference between an aftermarket line that requests starting from the car can find and one that is found only by its own number.

If your system keeps cross-references, include them. A cell can hold more than one genuine number when one part replaces several.

Across the stock lists we held on 3 November 2026, 66,479 of 91,328 lines (73%) carried a genuine cross-reference. The other 24,849 are not all a problem: genuine lines need none, because their own number is the carmaker's. For an OE-brand or aftermarket line, though, a missing cross-reference means a request that starts from the car cannot reach it, however well it is priced.

When the shop's WhatsApp records a customer's preference, most lines do not insist on a grade. Of 304 part lines between 7 October and 2 November 2026, 212 (70%) would take any grade, 37 asked for genuine only and 23 for aftermarket only; 32 had no preference recorded. A customer open to any grade can be offered any matching line.

That is why listing every grade you hold is worth it. A shop that lists only its genuine stock misses the customers who would rather pay less for a known aftermarket brand, and the other way round.

Read the table below across. Of the 272 lines with a preference on record, a genuine line fits 249 and an OE-brand or aftermarket line with its cross-reference fits 235. Neither grade fits all of them; a supplier that lists both, at the same numbers, fits all 272.

Every grade has a case for and against it on Easy Auto, and none of them is about which part is better on the car; that is the buyer's question, answered in the guide. These are listing questions: which requests a line can meet, and what it needs before a request can find it.

First, put each part's brand in the brand column as your system already holds it; the spellings are matched to ours once, when the file is mapped, and remembered after that. Second, keep genuine lines saying genuine in their brand spelling, such as TOY GEN or Toyota Genuine, so the flag carries through every load.

Third, give every OE-brand and aftermarket line the genuine number it replaces, in a column of its own, with several numbers in one cell where one part replaces several. Fourth, give each brand its own row, even where two brands share a number.

Fifth, if the whole list is one brand, leave the brand column out and name the brand in the note. Sixth, leave out anything used, refurbished or rebuilt; those lines are set aside, because stock lists on Easy Auto are for new parts. Then send the file through the upload form or by email, and a person checks it before anything goes live.

Most grade problems are not about the parts at all. They come from how a list was exported: a column left empty, two columns swapped, two brands squeezed into one row. Each one has a visible sign once your file is loaded, and each fix is made in the file itself, so it holds for every load after that.

If you are not sure which of these applies, send the file anyway with a note. A person checks every file before anything goes live, and the questions about brands and grades are settled in that first conversation.

Two kinds of line are left out. Used, refurbished or rebuilt parts are set aside, because stock lists on Easy Auto are for new parts. And parts that carry a brand without its owner's permission are counterfeit: selling them is against the law in the UAE, and they must not be sent. Unbranded or own-brand aftermarket parts are fine when they are labelled for what they are.

Keeping counterfeits off a stock list is also the law. Federal Decree-Law No. 42 of 2023 on combating commercial fraud, in force since 29 November 2023 and applying in free zones as well as on the mainland, defines counterfeit goods as goods that carry, without permission, a trademark identical or similar to a registered one. It prohibits importing, displaying, selling, storing, transporting, marketing, promoting or holding them for sale, and it makes describing or displaying goods with false or misleading data an offence in its own right.

The penalty is up to two years in prison and/or a fine of AED 5,000 to AED 1,000,000, rising to AED 100,000 to AED 2,000,000 in aggravated cases. A seller is not excused because the buyer knew the goods were counterfeit, and must refund or exchange them for a buyer acting in good faith. The trademark law, Federal Decree-Law No. 36 of 2021, separately makes knowingly selling, offering or holding for sale goods with a counterfeited or imitated trademark a crime, punishable by up to one year in prison and/or a fine of AED 50,000 to AED 200,000.

Grade also touches conformity. Under Cabinet Resolution No. 12 of 2018, the UAE scheme for automotive spare parts, importers, agents and distributors count as suppliers and must obtain a conformity certificate before offering any part type on the scheme's schedule, which includes braking systems, brake pads, engine radiators, safety belts, rear-view mirrors, lead-acid starter batteries, oil filters, air filters and laminated safety glass. Any part can show conformity through the Emirates Quality Mark or another recognised conformity mark, and a genuine part also through the manufacturer's test report and declaration of conformity. The Ministry of Industry and Advanced Technology now issues the certificates, and the fraud law counts goods that do not meet UAE specifications as fraudulent goods.

This section is a summary of Federal Decree-Law No. 42 of 2023, Federal Decree-Law No. 36 of 2021 and Cabinet Resolution No. 12 of 2018, as read on 4 November 2026, for orientation only and not legal advice.