Trailer Brake Module Control Tow Relay 15819418 for Chevy GMC 2500 3500 HD 2007 2014 Features： 1、OE Number: The replacement part number are 20904439, 25792959, 25848909, 25837945, 15819418, 1R3434, 16267, 1R3434, 25848909. Please check the number before ordering. 2、Vehicle Compatibility: Compatible with for EXT 2007 to 2013, for 1500 2008 to 2013, for 2500 3500 HD 2007 to 2014, for 2500 2007 to 2013, for XL 1500 2008 to 2014, etc. 3、Enhanced Performance: This relay module ensures consistent braking performance for your trailer, enhancing safety during towing by providing superior control over braking systems. 4、Long Lasting Durability: This brake module is constructed with high grade ABS materials that resist wear and environmental damage, ensuring long lasting performance. 5、Easy Installation: Designed for user friendly installation, direct replacement for the old or broken one, allowing you to get back on the road with minimal downtime. Specification： Item Type: Trailer Brake Control Relay Assembly OE Numbers: 20904439, 25792959, 25848909, 25837945, 15819418, 1R3434, 16267, 1R3434, 25848909 Fitment: Replacement for EXT 2007-2013 Replacement for 1500 2008-2013 Replacement for 2500 3500 HD 2007-2014 Replacement for 2500 2007-2013 Replacement for XL 1500 2008-2014 Replacement for XL 2500 2007-2013 Package List： 1 x Trailer Brake Relay Assembly