Breadcrumb Home Verify your STAMFORD Alternator Verify your STAMFORD Alternator Enter your hologram number ValidInvalidNot FoundValid*BlockedErrorVerifyReturn Please ensure you have entered the digit number beneath the STAMFORD hologram correctly (not the serial number) If you are sure you have entered the correct number, contact customer service [email protected]. Congratulations the serial number is valid. If you have any questions, contact customer service [email protected]. This serial number has not been activated by the manufacturer. Please contact customer service and include a picture of the nameplate [email protected]. *This serial number is valid. Please note that it has been previously Verified. If you have concerns, please contact customer service [email protected]. You have exceeded your allowed validation attempts. Please try again later. If this problem persists, please contact customer service [email protected]. There was an error checking the status of the serial number. Please try again later. If this problem persists, please contact customer service [email protected].