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Car Part Compatibility: How to Make Sure a Part Fits Your Car

A practical guide to verifying OEM part compatibility before ordering — using part numbers, VIN, production dates, and fitment notes to get it right first time.

Ordering the wrong part is frustrating and costly. This guide explains exactly how to verify compatibility before placing your order.

The Part Number Method: Most Reliable

The most reliable compatibility check is matching part numbers. If you have the original part, its part number guarantees fitment.

Production Date Matters More Than Model Year

Many parts change mid-model-year based on production date, not just model year. Always check production date ranges in parts catalogues.

Superseded Part Numbers

Manufacturers regularly update part numbers when a component is improved. JustOEM catalogue includes supersession information where available.

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