This BRAKE FLUID RESERVOIR is off a 2003 CHEVROLET SILVERADO 2500HD DIESEL DURAMAX EXTENDED CAB. Ask all questions prior to bidding. It is buyer's responsibility for proper fitment. 1-Month Warranty Contact us if you are looking for any other parts and if we have them in stock we will make a new sale for that item or items. Please contact us right away if there is a problem with your part, we will work with you to get it resolved quickly. Fits: SIERRA 2500 PICKUP 01-05 Transmission; (LH fan shroud), (AT, 5 speed, Allison, opt M74) SIERRA 3500 PICKUP 01-05 Transmission; (LH fan shroud), (AT, 5 speed, Allison, opt M74) SILVERADO 3500 PICKUP 01-05 Transmission; (LH fan shroud), (AT, 5 speed, Allison, opt M74) SILVERADO 2500 PICKUP 01-05 Transmission; (LH fan shroud), (Allison, AT, 5 speed, opt M74)