1、OE Number: The part numbers for reference are 9L3Z 13832 A, AL3T 13A803 AA, AL3T 13A803 AB, please confirm whether it is consistent with the OE you need. 2、Specific Parameters: The horn assembly can work under 42V-56V voltage and 4.2±0.3A current; with sound pressure greater than 106-115d. 3、Loud Sound: The horn assembly can emit a loud and clear warning sound, which can quickly attract the attention of the surrounding pedestrians, cyclists and other drivers, and improve driving safety. 4、Metal Construction: The horn assembly is made of high temperature resistant, high strength metal, with excellent durability, can adapt to extreme temperatures from -40°F to 257°F. 5、Stable Installation: Horn assembly with bracket design, make the installation more stable, can effectively resist the vibration and impact during the driving process.