Should I choose OEM or aftermarket for “where to buy auto parts”? | oem vs aftermarket where to buy auto parts

Choose by failure consequence, evidence, warranty, and labor cost. OEM can simplify specification matching; a documented aftermarket part can be suitable when its application data and quality controls are clear. FTC guidance says aftermarket use alone does not automatically void a vehicle warranty, although damage caused by a defective part or installation may be excluded. Source basis: NHTSA VIN Decoder and Recall Lookup; Federal Trade Commission guidance on auto warranties and online shopping.