Is it legal to buy a used airbag?
Used airbags can legally be sold in most states, but California (Vehicle Code § 27317), New York, and Maryland restrict resale or require certified-undeployed status. NHTSA recommends only OEM-new replacements. Whoever installs a used airbag can be civilly and criminally liable if it fails or contains counterfeit components.
An airbag is a one-shot pyrotechnic device. Once deployed, it is consumed and cannot be safely reused. Any used airbag offered for sale should be certified undeployed and never previously installed in a crash.
California Vehicle Code § 27317 prohibits selling, installing, or reinstalling a previously deployed airbag, a non-functional airbag, or any object designed to give the appearance of an airbag without one being present. Violations are a misdemeanor.
New York Vehicle and Traffic Law § 398-d (2018) makes knowing installation of a counterfeit, non-functional, or previously deployed airbag a class-E felony.
Maryland (HB 1077, 2022) restricts used airbag sales to licensed dealers and requires written disclosure to the buyer.
Even where resale is legal, the installer carries the liability. Counterfeit airbags from overseas have circulated since the 2014–2017 Takata recall era. NHTSA's standing recommendation is OEM-new only. Buyers should verify the part number, the donor VIN, and that the module shows no deployment indicator before installing.
Frequently asked
How can I tell if a used airbag has been deployed?
Check the module for a deployment indicator (varies by manufacturer), inspect the cover for cuts or repairs, and verify the resistance reading on the squib matches the OEM spec. When in doubt, do not install.
Can I install a used airbag myself?
Technically yes in most states, but you assume full civil and criminal liability if it fails. Most insurers will not cover claims involving non-OEM airbag installation.
Are SRS control modules also restricted?
Yes. Many states treat the SRS module the same as the airbag itself because a tampered module can mask deployment history. Reset modules should be flagged on the listing.
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