| Business | Phone |
| Autozone 195 S Rancho Santa Fe Rd, San Marcos 92078 | (760) 752-1734 |
| Battery Equaliser 1075 Linda Vista Dr, San Marcos 92078 | (760) 752-1641 |
| Carquest Auto Parts 1365 Grand Ave # 100, San Marcos 92078 | (760) 471-6994 |
| Europart 1420 Grand Ave, San Marcos 92078 | (760) 471-2308 |
| Sims Supply 1166 Via Teresa, San Marcos 92069 | (760) 839-0394 |
| Performance Depot Com Inc 1945 S Rancho Santa Fe Rd # C, San Marcos 92078 | (760) 410-0131 |
| Nology Engineering 1945 S Rancho Santa Fe Rd # C, San Marcos 92078 | (760) 591-0888 |
| Napa Auto Parts 560 W Mission Rd, San Marcos 92069 | (760) 736-6000 |
| Four Wheel Parts 630 Nordahl Rd # H, San Marcos 92069 | (760) 752-8697 |
| Giant A & M 920 Rancheros Dr # F, San Marcos 92069 | (760) 781-1194 |
| Interstate Vw Used Parts & Cor 135 N Pacific St # C, San Marcos 92069 | (760) 736-8515 |
| Kragen Auto Parts 255 S Rancho Santa Fe Rd, San Marcos 92078 | (760) 510-6633 |