Made of high quality material, durable and practical to use Type:HVAC Control Module Fitment Type:Direct Replacement Placement on Vehicle:Front Part Number: 599-193 Colour:black Material:plastic 2001-2002 for GMC Sierra 2500 HD -- 599-193-BL Please verify three aspects of information when purchasing 1. Vehicle parts number; 2. Appearance shape size; 3. Model year compatibility table. Note: Due to different product batches, the appearance may vary, which does not affect the use If you are not professional for technology, please don't buy this product Installation guide not included, we strongly recommend you seek professional installation. Please check as much as possible to make sure the item is what you need. Package Contents: 1 * HVAC Control Module 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.