| Business | Phone |
| Vol Radiator Svc 2902 Middlebrook Pike, Knoxville 37921 | (865) 522-0975 |
| Auto Radiator Inc 1600 Proctor St, Knoxville 37921 | (865) 673-5800 |
| Auto Radiator Outlet 6410 Chapman Hwy, Knoxville 37920 | (865) 330-3587 |
| Transpro Inc 300 Winona St, Knoxville 37917 | (865) 522-8845 |
| Radac Corp 105 Harriet Tubman St, Knoxville 37915 | (865) 523-9731 |