| Business | Phone |
| Advance Auto Parts Inc 1371 Highway K, O Fallon 63366 | (636) 980-3702 |
| Adventure Accessories 2530 E Pitman St, O Fallon 63366 | (636) 639-9631 |
| Autozone 1104 Highway K, O Fallon 63366 | (636) 980-1756 |
| Batteries Plus 2506 Highway K, O Fallon 63368 | (636) 978-7175 |
| Carquest O'Fallon 971 W Terra Ln, O Fallon 63366 | (636) 240-8776 |
| Western Auto & Equipment 226 S Main St, O Fallon 63366 | (636) 272-3275 |
| Napa Auto Parts 62 N Central Dr, O Fallon 63366 | (636) 978-8201 |