Dorman 923-231 Center High Mount Stop Light

OE-Style Third Brake Light Replacement

This Dorman center high mount stop light restores the rear brake lamp function on select BMW 1 Series models with a direct replacement design. Built to match the original look, fit, and performance, Dorman 923-231 is a practical solution when the factory third brake light is cracked, dim, or no longer working.

Compatible with BMW M135i, 118i, 125i, 128i, 135i, 135is, 120i, 1 Series M, and 130i applications across model years 2005-2016, this replacement third brake lamp uses LED lighting and a red lens for a factory-style appearance.

• Brand: Dorman
• Part number: 923-231
• Center high mount stop light / third brake lamp assembly
• LED bulb type for consistent rear brake light output
• Red lens with OE-style appearance
• Plastic housing construction
• Bulbs included
• Reverse-engineered to match the original lamp on specific vehicles

Fitment Details

• Fits 2013-2016 BMW M135i, N/A
• Fits 2012-2015 BMW 118i, N/A
• Fits 2008-2013 BMW 125i, N/A
• Fits 2008-2013 BMW 128i, N/A
• Fits 2008-2013 BMW 135i, N/A
• Fits 2013 BMW 135is, N/A
• Fits 2005-2012 BMW 120i, N/A
• Fits 2011 BMW 1 Series M, N/A
• Fits 2006-2010 BMW 130i, N/A

Common Problems This Part Can Solve

• Cracked or faded third brake light lens
• Dim, intermittent, or non-functioning center brake lamp
• Water intrusion or housing damage at the rear stop light
• Failed OE lamp on BMW 1 Series rear lighting systems
• Restoring a clean factory-style appearance after lamp failure

Installation Notes and Tips

Mounting hardware and wiring harness are not included, so reuse the original vehicle hardware and connector where applicable. Verify the existing lamp style and connector condition before installation, and confirm fitment by matching your BMW model year to the listed applications for Dorman 923-231.

Quality Assurance

This replacement third brake light assembly is reverse-engineered to match the stock center high mount stop light on specific BMW vehicles. It cross-references BMW part number 63257164978 for the same application.