What is auto parts interchange?

Auto parts interchange identifies vehicles that can use the same part or a compatible part family. Exact fit can still depend on engine, drivetrain, trim, production date, electrical options, position, and other vehicle-specific details.

Can I use my VIN to find compatible parts?

Yes. A VIN can identify important vehicle details such as model year, make, model, engine, body style, drivetrain, and other configuration data. CAWCH then uses the available interchange source to narrow compatible applications.

Does a matching year and model guarantee a part fits?

No. Many parts change by engine, drivetrain, trim, production date, option package, connector, calibration, or position. Verified interchange data and the fitment notes should be checked before installation.

Can I compare tire sizes?

Yes. The tire tool compares overall diameter and speedometer difference and highlights close alternatives. Load rating, speed rating, wheel width, offset, brake clearance, and body clearance still need to be verified.

Can I find my battery group size?

The battery finder can use vehicle information and connected fitment data to show battery group, type, CCA target, dimensions, and terminal notes when coverage is available.

Meet Adam

Tell me the car and the part.

Use normal words. I’ll ask only what matters, then show the exact interchange when verified data exists.

Adam

Hi 👋 What are you looking for? Try “2019 Nissan Rogue transmission” or enter a VIN.

Adam can guide the search without AI. If AI is enabled, it only interprets your wording; fitment still comes from verified records.

✓Exact when verified ✓No mechanic language needed ✓Sources stay behind the answer

Simple by design

One question at a time.

1Tell Adam what you know

Part name, VIN, vehicle, or a number on the part.

2Adam fills the gaps

You only see the next detail if it actually matters.

3Get the answer

Interchange number, compatible models and years. Extra details stay optional.

Tell me the car and the part.

One question at a time.

Enter the VIN

Choose the vehicle