Finding a spare part number is the first and most important step when repairing a car. An error in just one number can lead to the purchase of an incompatible part, delays in repairs, or even failure of other components. According to car service statistics, 37% returns of spare parts occurs precisely because of incorrectly selected articles. At the same time, the original catalogs of manufacturers contain up to 15,000 unique numbers for only one model - it is impossible to understand this diversity without a system.

In this article we will look at 7 working methods article search - from classic use VIN code to little-known tricks with online scanners and mobile applications. We will pay special attention crosses (analogs) spare parts, which allow you to save up to 60% without losing quality, but require double checking of compatibility. And at the end you will find a 5-step checklist that will help you avoid mistakes when ordering.

1. Search for an article by car VIN code

VIN code (Vehicle Identification Number) is a unique 17-digit identifier for your vehicle, which contains information about the make, model, year of manufacture, engine and even equipment. It is this that is the most reliable source for finding original articles, as it eliminates errors associated with the “human factor” (for example, confusion in model names).

Where can I find the VIN?

  • 📄 B vehicle passport (PTS) - line "Identification number"
  • 🚗 On windshield Driver's side (visible from outside)
  • 🔧 Under the hood - on a special plate (most often on the partition between the engine and the passenger compartment)
  • 🚪 On the driver's door pillar (sometimes duplicated on the passenger door)

How to use VIN to find part numbers:

  1. Copy the full 17-digit code without spaces or dashes.
  2. Enter it into one of the specialized services:
    • VIN-Decoderz - free decoder with support for 98% brands
    • VinInfo — Russian service with a database of domestic and foreign cars
    • CarVertical — paid report with the car’s history and details of spare parts
  • In the decoding results, find the section Parts Catalog or Spare parts — there will be original articles for your configuration.
    • ⚠️ Attention: If, when decoding the VIN, the service gives the error "Invalid VIN" or does not find data on spare parts, check:
    • Correctness of the entered code (a common mistake is the letter is confused O with a number 0).
    • Support for your brand by service (for example, Tesla or Lucid Motors may not be in the databases).

    In such cases, proceed to the alternative methods in the following sections.

    📊 How often do you use the VIN code to search for spare parts?
    Always, this is my main method
    Only for original parts
    I haven't tried it before, but now I will
    I prefer other methods

    2. Online catalogs of manufacturers: where to look for official articles

    Every self-respecting automaker maintains an electronic catalog of spare parts (ETIM, EPC or Parts Catalog). These databases contain 100% accurate items, but access to them is often limited. Let's look at how to get information legally and for free.

    Brand Catalog link Access Features Alternative methods
    Toyota/Lexus techinfo.toyota.com Paid subscription (~$15/day). Free access for owners through dealers. Websites ToyoDIY (paid, but cheaper than the official one).
    Volkswagen/Audi/Skoda erwin.volkswagen.de Official ErWin — €20 for 24 hours. Requires registration. Forums VW Club, where users share screenshots of catalogs.
    BMW/Mini bmw.com/genuine-parts Official website with search by model, but without details by VIN. Service RealOEM (free, but no guarantee of relevance).
    Hyundai/Kia hyundai-parts.eu Free access, but requires entering the VIN or model with the exact year. Mobile application Hyundai/Kia Parts (Android/iOS).

    If the official catalog is not available, use universal aggregators:

    • 🔍 Autodoc — a database of 5 million articles with filters by brand/model.
    • 🛒 Exist — wholesale catalog with cross-search support (analogs).
    • 🌍 RockAuto - American service with parts for rare models.

    3. How to find an article number using an old spare part: 3 steps

    If you have a part on hand that needs to be replaced, its part number can be determined directly by the markings. This method is suitable for 80% spare parts, except for completely worn out or damaged elements (for example, broken plastic clips).

    Where to look for the part number:

    • 🔧 Metal parts (brake discs, hubs, levers): the article is stamped on the front or back side with a laser or stamp. Often begins with the manufacturer's letters (BOS for Bosch, TRW for TRW).
    • ⚙️ Rubber products (belts, pipes): the number is applied with paint or embossing. For example, on the timing belt Contitech there will be a marking of the form CT1015.
    • 💡 Electronics (sensors, control units): look for a sticker with a barcode - the article is often hidden under it.

    Algorithm of actions:

    1. Clean the part from dirt and oil (use solvent or alcohol). Numbers on contaminated surfaces are easy to miss.
    2. View from different angles - sometimes markings are applied on the end or inside.
    3. Take a photo of the number and check it through:
      • Search in Google according to the phrase: article [number] website: exist.ru (example: article 1K0959653B website: exist.ru).
      • Cross number databases: TecDoc or AutoCatalogue.
    ⚠️ Attention: If there is no visible part number on the part, do not try to “guess” it by appearance! For example, wheel bearings for Ford Focus II The 2005 and 2007 may look the same but have different inside diameters. In such cases, use VIN or catalogs.

    Clean the part from dirt|Find markings (stamp, sticker, engraving)|Take a photo of the number from different angles|Check the number in 2-3 catalogs|Compare the photo of the part with a catalog (for example, on Autodoc)

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    4. Mobile applications for searching for articles: TOP-5

    A smartphone can become your main assistant in finding spare parts. Modern applications not only search for article numbers, but also compare prices, show analogues, and even recognize parts from photos. We tested 15 applications and selected the best:

    Application Platform Functions Cons
    Autodoc Android, iOS
    • Search by VIN, photos, catalogs.
    • Price comparison in 100+ stores.
    • Offline mode for saved parts.
    		 The database of analogues sometimes becomes outdated.
    VIN Decoder iOS
    • VIN decoding with spare parts details.
    • Vehicle history (accidents, mileage).
    		 Paid reports (~$5 per car).
    EPC Online Android
    • Access to catalogs of 50+ brands.
    • Search by body or engine number.
    		 The interface is in English, difficult for beginners.
    TecDoc Android, iOS
    • Cross-search for analogues using the original article.
    • Technical characteristics of parts.
    		 Requires registration.
    Car Parts Catalogue Android
    • Offline database for 20,000 models.
    • Schemes for disassembling units.
    		 The database has not been updated since 2021.

    Tip for use: Before purchasing a part through the app, always double-check the article number on the manufacturer’s website. For example, in Autodoc There may be no information about the restyling of the model, which is why you will be offered a spare part from the pre-restyling model.

    How to recognize fakes in mobile catalogs?

    Fake apps often:

    1. They ask for payment for “premium access” to databases that are actually free (for example, TecDoc).

    2. They have a name similar to the official ones (for example, “AutoDoc Pro” instead of “Autodoc”).

    3. They ask for unnecessary permissions (access to SMS, contacts).

    Check the developer and reviews before installing. Official applications always have verification (✅ icon in the App Store/Google Play).

    5. Crosses (analogs) of spare parts: how to find and not make mistakes

    Cross number (or analogue) is an article number of a spare part from another manufacturer that is fully compatible with the original part. Using crosses allows you to save up to 60%, but requires care: not all analogues are equally good. For example, brake pads from Bosch and no-name brands may have one cross-number, but differ greatly in resource.

    Where to look for crosses:

    • 🔄 TecDoc — the most complete database of cross numbers (more than 400 brands).
    • 🛠️ AutoCatalogue — Russian analogue with a convenient price filter.
    • 📱 Mobile application PartsLink24 — scans barcodes and shows analogues.

    How to check the reliability of an analogue:

    1. Compare technical parameters:
      • For filters: filter element area, throughput.
      • For bearings: internal/external diameter, accuracy class.
      • For electronics: voltage, resistance, connectors.
  • Check reviews on the forums:
    • Drive2 — search by model + part name.
    • Drome — sections by car brands.
    • Specify the country of production. For example, Chinese analogues for Japanese cars often turn out to be the original (same factories, but different packaging), and Turkish details for German cars may be of poor quality.
    ⚠️ Attention: Some details have no high-quality analogues. These include:
    • Safety features: timing belts, airbags, brake hoses.
    • Electronics: engine control units (ECU), ABS sensors.
    • Transmission units: clutch, differentials.

    For such spare parts, it is recommended to buy only original or certified analogues (Bosch, Hella, Sachs).

    1. Country of manufacture (do not confuse brand and factory).

    2. Warranty period (original - 2 years, analogues - from 6 months).

    3. Availability of a certificate of conformity (for Russia - EAC or GOST R).

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    6. Search for an article by photo: recognition services

    If you have a photo of a part, but no part number, visual search services will come to the rescue. They analyze the shape, size and markings in the image, comparing them with databases. The accuracy of this method reaches 85%, but depends on the quality of the photo and the uniqueness of the part.

    TOP 3 services for searching by photo:

    • 📸 Google Lens:
      • Upload a photo of the part → select the area with markings → click "Search".
      • Works better with clear labels (for example, article numbers on boxes).
    • 🔍 Yandex.Pictures:
      • Upload a photo → the system will find similar images with article numbers.
      • Effective for standard parts (e.g. spark plugs).
    • 🚗 Autodoc ("Search by photo" function):
      • Specialized tool for auto parts.
      • Recognizes even partially hidden numbers.

    How to take a photo for accurate recognition:

    • 📏 The item must occupy at least 70% of the frame.
    • 💡 Lighting - natural or from both sides (no shadows).
    • 🔤 Marking (if any) must be clear and not blocked.
    • 🎯 For small parts (for example, fuses) use macro mode.

    Limitations of the method:

    • Not suitable for standardized parts (such as bolts or nuts).
    • May issue outdated part numbers for parts manufactured after 2020.
    • Accuracy decreases if the part is covered with dirt or corrosion.
    💡

    If the service does not recognize the part, try cropping the photo so that only the unique part remains in the frame (for example, the shape of the teeth gears or the location of the holes bracket).

    7. Mistakes when searching for articles: how not to buy the wrong spare part

    Even experienced car owners sometimes make mistakes when selecting spare parts. We have collected 10 mistakesthat lead to the purchase of incompatible parts, and we’ll tell you how to avoid them.

    Error Consequences How to avoid
    Ignoring engine modifications (for example, 1.6 MPI vs 1.6 TSI) Buy a part that does not fit the fastenings or characteristics (for example, oil filter with incorrect threaded connection). Always check exact engine code (located on the cylinder block or in the PTS).
    Confusion in left/right for symmetrical parts (for example, suspension arms) You will have to return the part and wait for an exchange, wasting time on repairs. The article often contains markings:
    • L or LH - left side (Left Hand).
    • R or RH - right side (Right Hand).
    Purchase by outdated article (the manufacturer changed the number, but the part remained the same) The store will refuse the return, citing an “invalid order.” Check the relevance of the number via OEM DTC (base of article updates).
    Trust seller at the marketwho says: “This will do, I know!” Risk to buy used part with wear or fake. Require to present:
    • Original packaging with article number.
    • Warranty card.
    • Certificate of conformity.
    Ignoring restyling model (for example, Volkswagen Passat B6 before and after 2010) Parts may differ in fastenings or dimensions (for example, bumpers or headlights). Check exact year of manufacture and check with catalogs by VIN.

    Additional lifehacks:

    • 🔄 If you are in doubt about the article, order the part from possibility of return (in most online stores this is 14 days).
    • 📦 Before installation, compare the new part with the old one by:
      • Dimensions (use calipers for accuracy).
      • Weight (counterfeits are often lighter due to inferior materials).
      • Labeling (the original has clear inscriptions, the analogue has blurry inscriptions).
    • 💬 Write to the seller: "Please confirm that article number [XXX] is suitable for [make model year body engine]"> and save the correspondence - this will help with the return.

    FAQ: Answers to frequently asked questions

    Is it possible to find an article by the license plate number of the car?

    No, The license plate does not contain information about spare parts. It is linked only to the registration data of the car in the traffic police. To find articles you will need:

    • VIN code (the most reliable way),
    • or data from the vehicle title (make, model, year, engine).

    The exception is some services (for example, Autocode) they can issue a VIN based on the license plate number, but this does not work for all cars.

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

    If the marking is unreadable, follow the algorithm:

    1. Take a photo of the part from different angles and upload to Autodoc or Google Lens.
    2. Measure Key Parameters:
      • For bearings: inner/outer diameter, width.
      • For belts: length, number of teeth.
      • For lamps: base type (H4, H7 etc.).
  • Compare with catalogs:
    • On RockAuto There is a size filter.
    • On forums (for example, Drive2) look for topics on your model with photos of parts.
    • Contact your dealer with a photo - they can identify the part based on the database.

    If the part is standardized (for example, bolt or clamps), it’s easier to buy it in a store, taking the old one for comparison.

    How to check if a spare part is original according to the article number?

    Original parts have several signs of authenticity:

    1. Packaging:
      • Brand logo with hologram Toyota, BMW).
      • The article is duplicated on the box and sticker.
      • The barcode corresponds to the country of manufacture (for example, 400–440 - Germany).
    2. Marking on the part:
      • The original has clear embossing or laser engraving.
      • The presence of a manufacturer's logo (for example, VW in ovale).
  • Checking against the database:
    • Enter the article number on the official dealer's website - if the part is original, it will be there.
    • Use authentication services: