O'Reilly Auto Parts store #3686 in Marysville, Washington, offers a wide range of auto parts, tools, and accessories to help with vehicle repairs and maintenance. The store provides free services such as battery testing, wiper blade and bulb installation, fluid recycling, and Check Engine light testing. Customers can also use the free Loaner Tool program for special tools needed for repairs, with a refundable deposit. The staff are friendly, helpful, and patient, always ready to assist with projects or questions. Customers have praised the employees for their kindness and dedication, with some going above and beyond to solve problems, such as fixing headlights or suggesting better solutions. Despite being a smaller store, they can order items if not in stock, and parking is available nearby. The store is located at 6618 64th Street Northeast and is part of a large chain with over 6,000 stores across the US. Overall, the Marysville O'Reilly Auto Parts provides helpful service, quality products, and a welcoming environment for all customers.