How to Identify a Turbocharger Part Number: Quick & Easy Guide

When replacing a turbocharger, the most important step is knowing how to identify the turbocharger part number. Choosing a turbo based on appearance alone can lead to the wrong fit and lost time. Finding the correct part number is usually simple once you know what to look for.

The fastest and most reliable place to find your turbo’s part number is the ID tag, also called the nameplate. This small, metal tag is normally mounted on the compressor housing or the center section of the turbo. It should display the manufacturer name such as Garrett, Holset, BorgWarner, IHI, or Mitsubishi along with the full part number and serial number. For example, Garrett part numbers often look like 7xxxx-xxxx, Holset may include HE or HX designations, and Mitsubishi typically uses formats like 491xx-xxxxx. If this tag is intact, you’ve already got everything you need. Just snap a clear photo and use it to match your replacement.

When no ID tags are available, you can still identify your turbo by usingthe vehicle's year, make, model, and engine size. 

For engines in trucks, diesels, heavy equipment, an OEM part number from the dealership or manufacturer can also be cross-matched to the correct turbocharger. This is especially useful for brands like Ford/Powerstroke, Ram/Cummins, GM/Duramax, Caterpillar, John Deere, and similar platforms.

The most important thing to remember is that even one series of digits matters. Take clear photos, capture every number you see, and avoid relying only on casting numbers—they can be shared across different turbo models.

Once you’ve found your turbocharger part number, simply enter it into the search bar at TURBOS.COM and you’ll instantly see matching options so you can order the exact turbo you need with confidence. And if your number is unreadable or you’re still unsure, Contact Us and send us your photos. Our team will identify the correct turbo for you quickly. We look forward to earning your business!