The Master Lock No. 379ATPY features a universal trailer coupler lock, designed to fit 1-7/8in (48mm), 2in (51mm) and most 2-5/16in (59mm) couplers. The advanced locking mechanism provides resistance to picking and prying.
Freeway Trailer Sales Inc. attaches this blanket statement to all of our online part numbers as we have no way to verify that these items do or do not fall under the Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.