O'Reilly Auto Parts store #1399 in Troy, Missouri, offers a wide range of parts, tools, and accessories for vehicle repair and maintenance. Located at 101 Market Place Drive, the store provides helpful store services such as free battery testing, wiper blade and bulb installation, fluid recycling, and Check Engine light testing. The store also resurfaces brake rotors and drums and offers a free Loaner Tool program for one-time projects, with a refundable deposit. Customers appreciate the staff's knowledge, friendliness, and willingness to go above and beyond, even during closing hours. Many mention the staff's honesty and integrity, often helping customers save significant money on repairs—some reports of repairs costing less than $100 instead of thousands at a shop. The employees are described as knowledgeable, nice, and friendly, providing great assistance and support. While some mention staffing issues or missing the old crew, overall, the store is praised for its reasonable prices, helpful service, and dedication to helping customers. With over 6,000 locations nationwide, O'Reilly Auto Parts is known for its reliable service and quality parts.