O'Reilly Auto Parts store #5406 in Deltona, Florida, offers a wide range of parts, tools, and accessories for vehicle maintenance and repair. The store provides helpful services such as free battery testing, wiper blade and bulb installation, fluid recycling, and Check Engine light testing. They also resurface brake rotors and drums, and have a free Loaner Tool program with a refundable deposit. Customers appreciate the friendly and efficient staff, with positive comments about employees who answer questions, provide honest advice, and handle last-minute emergencies well. One reviewer noted a new store experience where the staff treated them well, though they found prices to be higher than other places, which may influence future visits. Another customer highlighted excellent customer service from a staff member who diagnosed battery issues, cleaned and treated the battery, and provided helpful information for a road trip. Overall, the store is known for great customer service, knowledgeable staff, and a welcoming atmosphere, making it a reliable choice for auto parts and assistance in the Deltona area.