| Business | Phone |
| Aid Auto Stores 1053 Old Country Rd, Riverhead 11901 | (631) 369-1660 |
| Automotive Discount Center 309 E Main St, Riverhead 11901 | (631) 369-1551 |
| Autozone 1260 Old Country Rd, Riverhead 11901 | (631) 369-0325 |
| Bejay Auto Parts Inc 1312 E Main St, Riverhead 11901 | (631) 727-4560 |
| Herb Obser Motors Inc 1241 Old Country Rd, Riverhead 11901 | (631) 727-6161 |
| Riverhead Motors Inc County Highway 58, Riverhead 11901 | (631) 727-2345 |
| Speedworldfx 162 Old Country Rd, Riverhead 11901 | (631) 727-5824 |