Finding the correct part number for a car is a task that every car owner faces during repairs or scheduled maintenance. A mistake in one number or letter can result in the purchase of an incompatible part, lost return time and additional costs. According to car service statistics, up to 30% returns on spare parts occurs precisely because of incorrectly specified articles.

In this article we will analyze all the current methods of identifying articles - from classical methods using VIN code and data from the car plate to modern online services and mobile applications. We will pay special attention to the nuances that will help avoid typical mistakes when selecting parts for foreign cars and domestic cars.

1. What is a spare part number and why is it important to know it?

The article number (or catalog number) is a unique part identifier assigned by the manufacturer. It can consist of numbers, letters or a combination of both (for example, 11287505079 for original oil filter BMW or FR-443 for brake pads TRW). This number ensures that you are buying exactly the part that is suitable for your car model, taking into account the year of manufacture and modification.

Why can't you just rely on the part name? For example, brake discs for Volkswagen Golf IV 1999 and 2002 may not be different in appearance, but have different part numbers due to changes in the design of the brake system. And the engine oil filter 1.6 MPI not suitable for motor 1.4 TSI same model Skoda Octavia.

  • 🔧 Original articles — assigned by the vehicle manufacturer (for example, Toyota, Ford). Typically starting with a brand prefix.
  • 🔄 Analogues (crosses) — articles of spare parts manufacturers (Bosch, Hella, Febi), which are certified to replace original parts.
  • ⚠️ Universal parts - are not tied to the car model (for example, lamps H7 or spark plugs NGK BPR6ES). Their articles are standardized.
⚠️ Attention: Some sellers indicate in the product card "suitable for Renault Logan 2005–2015", but this does not guarantee compatibility. Always check the article number with the original catalogue!

2. Where to physically look for the article number on the part itself

If you have an old spare part that needs to be replaced, the most reliable way is to find the part number directly on it. Manufacturers apply markings to the body of the part using embossing, laser engraving or stickers. Where to look:

  • 🔍 Metal parts (brake discs, wheel bearings, suspension arms) - the article number is stamped on a non-working surface (for example, on the inside of the disc).
  • 💡 Electrics (generators, starters, sensors) - number on the case or on a sticker with a barcode.
  • 🛢️ Consumables (filters, belts, spark plugs) - the article number on the packaging or on the product itself (for example, on the rubber ring of an oil filter).
  • 🚗 Body parts (headlights, bumpers, mirrors) - number on the back or under the decorative trim.

Example: on a brake caliper Audi A4 B6 the article can be embossed in the format 8E0 615 123 A, where:

  • 8E0 — model prefix;
  • 615 — part group code (brake system);
  • 123 A — unique number and revision.
⚠️ Attention: On fakes, the article numbers are often written unclearly or with errors. Check the number with official catalogs if the font looks suspicious!
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If the article has worn off, try wiping the part with a solvent (for example, WD-40) - sometimes this helps to read the markings.

3. Search for an article by car VIN code

VIN code (Vehicle Identification Number) is a 17-digit vehicle identifier that contains information about the make, model, year of manufacture, engine and even equipment. It can help you determine exactly which parts are suitable for your car.

Where to find VIN:

  • 🚗 On the sign under the windshield (driver's side).
  • 🔧 In the technical passport (PTS) or registration certificate.
  • 🔑 On the driver's door sign (many American and Japanese cars).

How to use VIN to find part numbers:

  1. Copy the VIN code (example: WAUZZZ4LZBD123456 for Audi A4).
  2. Enter it into one of the specialized services:
    • VIN-Decoderz (free, English)
    • VIN.info (paid, but with spare parts database)
    • Official websites of manufacturers (for example, MersoPart for Mercedes-Benz).
  • Receive a report with vehicle data and a list of original articles.
    • Service Free/Paid Features Supported Brands
    VIN-Decoderz Free VIN decoding, but without part numbers All major brands
    VIN.info Paid ($10–$20) Full car history + spare parts catalog Europe, USA, Japan
    ETIS (Ford) Free Official catalog for Ford Only Ford/Lincoln
    MersoPart Free Catalog of original spare parts Mercedes-Benz Only Mercedes
    📊 How do you usually look for spare parts articles?
    By VIN code
    According to data from the car plate
    I ask at the car service center
    I use mobile applications
    Another way

    4. Online spare parts catalogs: review of the best services

    If you don’t have a VIN code at hand, you can use online catalogs, where items are selected by make, model, year of manufacture and modification of the car. Below are proven services with up-to-date databases.

    • 🌍 Autodoc - one of the largest catalogs with support more than 50 car brands. There is a filter based on part parameters (for example, brake disc diameter).
    • 🔧 EXIST - a professional catalog for car services, but also available to individuals. Shows original articles and analogues.
    • 📱 EMEX — convenient search by article, VIN or car parameters. There is a mobile application.
    • 🇩🇪 TECDOC (Hella) - official catalog for European and Asian cars. Supports cross-search for analogues.

    Example search on Autodoc:

    1. Select a brand (eg Hyundai).
    2. Specify model (Solaris) and year of manufacture (2017).
    3. Select a part category (for example, "Front brake pads").
    4. The system will show the original articles (58302-2B000) and analogues (P85040 from Textar).

    Check the article number with 2-3 catalogues|Make sure that the year of manufacture and modification of the car match|Check reviews of the seller|Compare prices for analogues-->

    5. Mobile applications for searching for articles

    A smartphone can become your main assistant in finding spare parts. Modern applications not only search for articles, but also scan barcodes, compare prices and show the nearest stores with the availability of the part.

    Application Platform Functions Link
    AutoDoc iOS/Android Search by VIN, barcode scanner, catalog of analogues App Store / Google Play
    EXIST Mobile iOS/Android Access to the EXIST database, order history, discount notifications App Store / Google Play
    CarScanner Android VIN and barcode scanner, compatibility check Google Play

    How to use AutoDoc:

    1. Download the application and register.
    2. Click "Search by VIN" or select the car make manually.
    3. Scan the barcode of the old part (if available) or enter the part number.
    4. The system will show all compatible spare parts with prices and availability.
    How to distinguish a fake by barcode

    Counterfeit parts often have an unreadable or duplicate barcode. Check it through the app Barcode Scanner — if the code is not recognized or leads to a suspicious site, this is a reason to be wary.

    6. Search for an article using data from the vehicle plate

    If the VIN code is not at hand, you can use the data from car nameplate (plates on the body or under the hood). It indicates:

    • 🔠 Model code (for example, E87 for BMW 1 Series).
    • 🔧 Engine code (for example, CFNA for Volkswagen Polo 1.6).
    • 📅 Year of manufacture (sometimes the month is indicated).
    • 🏭 Factory code (for example, WAG for Audi from Germany).

    Example: on a sign Toyota Corolla 2015 may be indicated:

    MODEL: ZRE172

    ENGINE: 1ZR-FE
    

    TRANS: K311

    This information will help you narrow your search in directories. For example, in TECDOC you can choose:

    1. Brand: Toyota.
    2. Model: Corolla (E170).
    3. Engine: 1ZR-FE (1.6 l, 124 hp).
    4. Year: 2015.
    ⚠️ Attention: On some vehicles (for example, Renault or Peugeot) the engine code may be hidden under a plastic cover. To see it, you will need to remove the decorative trim.

    7. How to check the article for compatibility

    Even if you find the part number, before purchasing you need to make sure that the part is suitable for your car. Here's how to do it:

    • 🔄 Cross search: Enter the article number in AutoCatalog or TECDOCto see which models it fits.
    • 📊 Comparison of parameters: For brake discs, check the diameter, thickness and mounting type. For filters - sizes and threads.
    • 💬 Reviews: On forums (for example, Drive2) often discuss the compatibility of spare parts.

    Example: brake pad article number 098642479C suitable for:

    • Volkswagen Passat B6 (2005–2010, engine 2.0 TDI);
    • Audi A4 B7 (2004–2008, front axle);
    • Skoda Superb (2008–2013, with system ESP).
    💡

    If the article starts with 000 or contains letters X, Y, Z in unusual positions - this is a sign of a fake. Original numbers always follow a logical structure.

    8. Typical mistakes when searching for articles and how to avoid them

    Errors in the selection of spare parts cost car owners millions of rubles annually. Here are the most common of them:

    • 🚫 Ignoring restyling: For example, Kia Rio 2012 and 2013 may have different headlight part numbers due to design changes.
    • 🚫 Failure to take into account equipment: Details for version with ABS and without it they are often incompatible.
    • 🚫 Trusting the seller's word: The phrase “suitable for your car” without checking the article number is a risk of buying the wrong part.
    • 🚫 Confusion in analogues: Article Bosch may not be the same as the original, even if the part looks the same.

    How to avoid mistakes:

    1. Always check the article number with manufacturer's official catalog.
    2. Use 2–3 sources for checking (for example, Autodoc + TECDOC).
    3. If you buy an analogue, check whether it is certified for your model (there should be a sign on the package OEM or OE).
    💡

    Before purchasing an expensive part (for example, a turbine or automatic transmission), ask the seller for a photo of the part number on the part itself. This will protect against fakes.

    FAQ: Frequently asked questions about spare parts articles

    Can I use a part number from another car model if the parts look the same?

    No, even visually identical parts can have different internal parameters. For example, brake pads for Volkswagen Golf and Skoda Octavia one year may differ in the composition of the friction material, which will affect the braking distance. Always check compatibility using VIN or catalogs.

    What to do if the article number on a part is erased?

    In this case:

    1. Try to find the part in the catalog by VIN code.
    2. Take a photo of the part and ask a question on specialized forums (for example, Drive2).
    3. Contact the official dealership - they can determine the article number from the photo.
    How to check if a spare part is original according to the article number?

    Original parts have:

    • Clear markings (no blurred symbols).
    • Hologram or protective sticker from the manufacturer.
    • Packaging with a brand logo (for example, Toyota Genuine Parts).

    Counterfeits are often sold without packaging or with typos in the article number (for example, 0451234567 instead of 0 451 234 567).

    Is it possible to find out by the article number whether a part is suitable for a tuned car?

    No, the article numbers of original spare parts are designed for standard versions of cars. If you have changed the engine power, suspension or brake system, you will have to select parts based on technical parameters (for example, the diameter of the brake discs or spring stiffness). In such cases, it is better to consult with tuning specialists.

    Where can I check an article for compatibility for free?

    Free services for checking:

    • AutoCatalog — cross-search by articles.
    • ILCATS — a catalog with support for Russian and foreign cars.
    • CarInfo — database for European and Asian cars.