Finding a Part Number by Body Number or VIN: A Complete Guide with Proven Methods

Have you ever encountered a situation where you urgently need to replace a part in your car, but you don’t know its exact part number? Or a seller at the market assures that “this fits your model,” but you doubt it? Body number and VIN code — your main assistants in finding original spare parts. Without them, the risk of buying an incompatible or counterfeit part increases significantly.

In this article we will look at how free and legal find the number of any spare part by body number or VIN, what services to use for this, and why sometimes even official dealers make mistakes with the selection. You will learn where exactly on the car to look for these numbers, how to read them correctly, and what to do if the data does not match in different databases.

Spoiler: not all online services are equally useful. Some provide outdated information, while others require payment for information that can be obtained for free. We have selected only proven sources and methods that are used by professional car mechanics and car dismantling managers.

Where is the body number and VIN code: detailed instructions with photos

Before looking for spare parts, you need to correctly remove the vehicle identification numbers. VIN (Vehicle Identification Number) and body number - these are not the same thing, although they are often confused. VIN consists of 17 characters and contains information about the manufacturer, model, year of manufacture and even equipment. The body number is usually shorter (6 to 9 characters) and duplicates part of the VIN, but not always.

Where to look for these numbers:

• 🚗 Windshield (lower corner, driver's side) - the most accessible place, but the room may be covered with dirt or tinting.
• 🔧 Sign on the driver's door pillar — the VIN and body number are usually indicated here, as well as information about the permissible weight and engine type.
• 🔍 Under the hood (on the side members or the partition of the engine compartment) - often stamped on metal, but can be hidden by pipes or a battery.
• 📄 In documents (STS, PTS, insurance) - if physical examination is difficult, take data from there, but check carefully with real license plates on the car!

⚠️ Attention: On some models (for example, Volkswagen or Skoda) the body number can be duplicated in the trunk under the spare wheel or on the rear panel. If you don't find it in the standard locations, check these spots.

What to do if the number is erased or damaged? In this case it will help reconciliation by units: engine, gearbox or axles. Their numbers are also linked to the VIN, and using them you can restore body data through specialized databases.

How to decipher VIN and body number: what do the symbols mean?

A VIN is not a random collection of letters and numbers. It is divided into three parts, each of which carries specific information:

1. WMI (World Manufacturer Identifier) - first 3 characters. Indicates the manufacturer. For example, XTA — Lada, WDB — Mercedes-Benz, JT — Toyota.
2. VDS (Vehicle Descriptor Section) — symbols 4 to 9. Describe the model, body type, engine and other characteristics.
3. VIS (Vehicle Identifier Section) — characters from 10 to 17. The year of manufacture, manufacturer and serial number are encoded here.

The body number usually duplicates the last 6–9 characters of the VIN, but may also contain unique designations. For example, at BMW The body number often begins with a letter designating the series (E for the 3rd series, F for the 5th), and Audi may include factory code (W for Ingolstadt).

You can decipher the VIN manually (there are official tables from manufacturers) or using online services. Here are the most reliable:

• 🌍 VinDecoderz — free database with support for most brands.
• 🔍 VIN-Decoderz — detailed description indicating configuration options.
• 📋 CarVertical — a paid service, but it gives a full report on the car’s history (mileage, accidents, repairs).

⚠️ Attention: If, when decoding the VIN, the service shows data that does not match your car (for example, a different engine or body), this may mean:

• Error in the database (rare, but happens with little-known brands).
• Replacement of the body or components (often found in cars after serious accidents).
• Typo when entering VIN - double check the symbols, especially the letters I, O, Q, which can easily be confused with numbers.

Top 5 ways to find a part number by body number or VIN

Now let's move on to the main thing: how to find the article number of the required part using the available data. There are many ways, but we have selected the most reliable and proven ones.

1. Official catalogs of manufacturers

Each brand has its own electronic spare parts catalog (ETKA for VW/Audi,EPC for Mercedes, Microcat for Ford). Access to them is usually paid, but some dealers provide temporary logins for customers. An alternative is sites like ILcats, where you can find offline versions of catalogs.

2. Online services for selecting spare parts

The most popular:

• 🔧 Autodoc — enter the VIN or model, and the system will show all compatible parts with article numbers.
• 🛒 Exist - a base for professionals, but requires registration.
• 🚘 EMEX — suitable for searching by body number, there is a filter by analogue manufacturers.

3. Databases of car wreckers

If you need a used part, check:

• 🔄 Bamper.by (for the CIS).
• 🔍 Autopiter (Russia).
• 🌍 Car-Part.com (international base).

Here you can find a part by body number and even see a photo of a disassembled car.

4. Forums and communities of owners

On thematic forums (for example, Drome or Drive2) often post compatibility tables of spare parts for specific models. Searching by VIN or chassis number can yield surprisingly accurate results.

5. Mobile applications

Applications like AutoZone or PartsLink24 scan the VIN using a camera and immediately show the spare parts catalog. Convenient if you are in a store and need to quickly check.

Check the body number with the documents|Make sure that the service supports your brand|View reviews of the seller|Compare prices in 2-3 sources|Check for warranty-->

Why matching by VIN can cause errors: typical problems and solutions

Even the most advanced services sometimes make mistakes. Here are the most common reasons for inaccurate selection:

1. Changes in car design

If the car has been tuned, engine or body replaced, the VIN will indicate the original configuration, and not the current one. For example, if on VAZ 2110 installed the engine from Priora, the catalog will offer spare parts for the old motor.

2. Database errors

Manufacturers sometimes update catalogs, and old versions of services produce outdated articles. This is especially true for cars older than 10 years.

3. Restyled models

If the car was released at the junction of restyling (for example, Toyota Camry 2017 before and after the update), the VIN may indicate both versions. In this case, you need to clarify additional parameters: body type, engine size.

4. Counterfeit parts

Unscrupulous sellers counterfeit article numbers, and even if the number matches the catalog, the part may be of poor quality. Always check:

• 🏷️ Availability of holograms and protective signs on the packaging.
• 🔍 Compliance with the manufacturer’s logo (compare with the official website).
• 📦 Quality of packaging - original spare parts are rarely sold in plastic bags.

⚠️ Attention: If, when selecting by VIN, the service issues a part marked NLA (No Longer Available), this means that the manufacturer has discontinued it. In this case, look for analogues from other brands (for example, Febi, Meyle for German cars) or used options at disassembly sites.

How to recognize a fake spare part by packaging

Original parts are usually packaged in branded boxes with the manufacturer's logo, barcode and article number. Counterfeit goods often come in simple bags or boxes with blurry labels. Pay attention to the quality of the print: on fakes, the paint may smudge or have an uneven color. Also check for security holograms (for Bosch, ZF they are required).

Table: Where to look for spare parts for popular brands by body number

Not all services work equally well with different brands. We have compiled a table with verified sources for the most common brands:

Car make	The best selection service	Features
VW, Audi, Skoda, Seat	ETKA Online	Requires registration, but provides accurate data on all modifications. For older models (pre-2000), use offline versions.
Toyota, Lexus	Toyodiy	Free access to electrical diagrams and catalogs. Equipment may vary for Japanese markets.
BMW, Mini	RealOEM	The most detailed catalog indicating the price and replacement time. Supports even rare options.
Lada, GAZ, UAZ	Spare parts-Lada	For domestic cars, the body number is often enough, since there are fewer modifications. Check the year of manufacture carefully.
Mercedes-Benz	EPC Mercedes	Official catalog, but available only to dealers. Alternative - MercedesSource (paid).

If your brand is not in the table, try universal services like AutoCatalogs or PartInfo. They are less detailed but cover most brands.

What to do if the body number does not match the VIN: action algorithm

Sometimes, when checking, it turns out that the body number does not match the last characters of the VIN. This is a warning sign that may mean:

1. Error during production

Previously (before the 2000s), some factories allowed discrepancies in documents. For example, on Mosvich-2141 The body number may not completely duplicate the VIN. In this case, check the data in the PTS.

2. Replacement of the body after an accident

If the car was in a serious accident, the body could be replaced with another (for example, from disassembly). This is not always bad, but requires checking:

• 🔧 View vehicle history via Carfax or Autocode.
• 📸 Compare the photo of the body with the base Vinformer — there are images of the original parts.
• 🔍 Check the welding seams and paint at the joints - sloppy repairs will result in a replacement.

3. Forgery of documents

If the body number is erased or interrupted, and the VIN does not pass the traffic police check, this is a reason to refuse the purchase. Such cars often end up stolen or with high mileage.

⚠️ Attention: If you are purchasing a spare part for a vehicle with mismatched numbers, check with the seller:

• 📅 Year of manufacture of the body (may differ from the year of manufacture of the car).
• 🔧 Type of engine and gearbox (they could be replaced).
• 📋 The presence of additional options (for example, climate control or ABS) that affect the compatibility of parts.

Life hacks from mechanics: how to speed up the search and avoid mistakes

Experienced car mechanics know several tricks that save time and money when selecting spare parts:

1. Use photos

If you are not sure about the part number, take pictures of the old part from different angles and upload it to the forums (for example, Drive2). The community will help identify her in a few hours.

2. Check cross numbers

The same part may have different part numbers from the manufacturer and supplier. For example, the original filter Mann for BMW may be sold under number C 36 003, and its analogue from Mahle - under OC 205. Services like OEM-Catalog show all options.

3. Check the manuals

In repair manuals (for example, Haynes or Chilton) parts numbers are often specified for specific operations. They can be found in PDF on thematic sites.

4. Use mobile scanners

Applications like OBD Auto Doctor read errors from the computer, where sometimes faulty parts with their codes are indicated. This speeds up diagnosis.

5. Buy in sets

If you are changing, for example, brake pads, take them right away kit (pads + guides + lubricant). It's cheaper than buying everything separately and guarantees compatibility.

⚠️ Attention: When purchasing spare parts at a disassembly site, always ask the seller to show passport details (if there is one). It contains the original article number and sometimes even the VIN of the donor car. This will protect you from buying a part from another car that is “similar, but not the same.”

FAQ: Frequently asked questions about searching for spare parts by body number

Is it possible to find a spare part only by body number, without VIN?

Yes, but it's less accurate. The body number helps narrow the search to the model and year of manufacture, but does not take into account the equipment. For example, for Ford Focus 2010 there may be 5 types of engines - and parts for them are not interchangeable. VIN gives complete information, including options.

What should I do if the service does not find my VIN?

Possible reasons:

• Typo in VIN (check the characters 0 and O, 1 and I).
• The service does not support your brand (try VIN-Decoderz).
• The car is too new (databases are updated with a delay of up to 6 months).

As a last resort, contact an official dealer - they have access to closed databases.

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

Compare the article with the manufacturer's database:

• For Toyota — official website.
• For VW — VW catalog.
• For BMW — BMW Original Parts.

If the article is not found, it is either a fake or an analogue. Original parts are always available in official catalogs.

Is it possible to find out the color of a car by the body number?

Yes, but not in all cases. The VIN encodes the body color (usually in 7–9 characters of the VDS section), but the body number itself does not carry this information. For an accurate determination, use services like PaintRef, where you can find out the original paint code using the VIN.

What is a “cross number” and why is it needed?

Cross number is an analogue article that fits instead of the original part. For example, the original filter Mann for Audi A4 may have cross numbers from Mahle, Filtron or Bosch. This is convenient when the original is too expensive or is out of stock. You can check cross numbers at OEM-Catalog.