Browse Mack MD7 Sewer / Septic Trucks for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 5 listings. Mack MD7 Sewer / Septic Truck pricing ranges from $154,993 to $156,980 based on recent marketplace data. Filter by GVWR, number of axles, transmission, mileage, and more to find the right Mack MD7 Sewer / Septic Truck.