How to Find the Right Part Number for Your Car

You might be trying to find a car part number to sell a component, or more likely because something on your vehicle has failed and needs replacing. Either way, getting the correct part number is essential if you want the right fit first time.

This guide will walk you through exactly how to find your car part number, whether you want a quick and easy solution or prefer to track it down yourself.

Look Up Your Reg Number (The Easiest Option)

If you want to avoid the hassle of searching for part numbers yourself, using your registration number is by far the simplest route.

At PartsGateway, we make this process straightforward:

• Enter your vehicle registration
• Select the part you need
• Submit your request

You can always go to the main dealer, but that is usually the more expensive route. With PartsGateway, you can save up to 70% on a green part and still find OEM parts from our trusted suppliers.

These suppliers will:

• Confirm the correct part for your vehicle
• Provide pricing and location details
• Let you choose between delivery or collection

This means you can get the right part without ever needing to find the part number yourself.

For many car owners, this is the quickest and least stressful option, especially if you’re unsure about compatibility.

Find the Part Number Yourself

If you prefer to locate the part number manually, there are several reliable ways to do it.

Use Your VIN (Vehicle Identification Number)

Your VIN is a 17-digit code unique to your vehicle. It can help identify the exact specification of your car and the parts fitted to it.

You can usually find your VIN:

• At the base of the windscreen (driver’s side)
• Inside the engine bay
• On the door frame
• On your V5C logbook

Once you have your VIN, you can use it on manufacturer websites or parts databases to find the correct OEM part number.

Image from Driver and Vehicle Licensing Agency

Check the Part Itself

If you already have access to the faulty or removed part, this is often the most direct method.

Simply:

1. Remove the part (if safe to do so)
2. Inspect it closely
3. Look for a printed, engraved, or stickered number

Part numbers are often located:

• On flat surfaces
• Along edges or connectors
• Near barcodes or branding

Keep in mind that dirt and wear can make the number harder to read, so you may need to clean the component first.

Look in Your Vehicle Handbook or Manufacturer Sites

Your car’s handbook can sometimes list part numbers or at least give clues about the correct components.

Manufacturer websites and official parts catalogues are also useful, especially when using your VIN.

These sources are more reliable than guessing, particularly for complex parts like:

• Engine components
• Electronic modules
• Suspension parts

Ask Car Communities and Forums

There are plenty of online communities where experienced car enthusiasts can help identify parts.

Popular places include:

• Car-specific forums
• Owner groups
• Platforms like Reddit, especially r/CarTalkUK

These communities can be helpful, especially for older or modified vehicles where parts may vary.

However, if you are not 100% sure, it is always best to double-check with a professional. Getting the wrong part can cost you more time and money in the long run.

Why Getting the Right Part Number Matters

Using the wrong part number can lead to:

• Parts that do not fit
• Compatibility issues
• Wasted money on returns
• Delays in getting your car back on the road

Even small differences between parts can affect performance and safety, so accuracy is key.

Conclusion

Finding your car part number does not have to be complicated. You can either:

• Use your registration for a fast, hassle-free solution
• Locate the number yourself using the VIN, the part, or official sources

If you want to save time and avoid mistakes, using a service that connects you directly with trusted suppliers is often the best route.

If you need to replace a car part, you can request it through PartsGateway. You will receive quotes from trusted breakers and suppliers across the UK, helping you find the right part at a competitive price.