Product Description: and High Quality and High Performance. Manufacturer Part Number: 10383321,15764135 Please check compatibility table, part photos, part number and part description above carefully to make it is what you need. installation in highly recommended (No instruction included). Fitment: 2003-2006 For Chevy Tahoe 2003-2007 For H2 2003-2006 For Avalanche 1500 2500 2003-2004 For Chevy 2500 2003-2006 For Escalade,Escalade ESV,EXT 2003-2006 For Chevy 1500 HD,2500 HD,3500 2003-2006 For Chevy , XL 1500, XL 2500 2003-2006 For 1500,1500HD,2500HD, 3500 2007 For 1500 Classic,1500HD Classic,2500HD Classic,3500 Classic Material: plastic colour: black Package Contents: 1 x Flasher Relay Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.