This replacement anti-rattle bumper is designed to fit CURT adjustable channel mounts #45900, #45901 and #45907. It fits into the back of the channel mount and helps reduce vibrations.

Product Features:

• Replacement anti-rattle bumper for CURT #45900, #45901 or #45907
• Helps reduce vibration between channel and attachment for quieter towing
• Adjustable channel mount allows for precise trailer leveling