Ariens Gravely Sno-thro & Lawn Mower (Service Assembly) Blower Housing 51514700. Replacement Blower Service Assembly For Select Gravely Lawn Mowers And Snow Blowers. If you experience any issues with your order(s), please contact our shop. Issues are often resolved much quicker when contacting us first. Please note that item(s) may show signs of wear, to include but not limited to scratches, dents, dings, smudges, sticker residue, and other minor imperfections. Please refer to actual product photos for a more accurate understanding of an item’s physical condition.