A used engine, often referred to as a second-hand or remanufactured engine, is a previously owned power unit that has been removed from a vehicle and made available for resale. These engines are typically sourced from vehicles that are no longer in service due to various reasons such as accidents, age, or upgrades. Before being sold, used engines are usually inspected and tested to ensure they are in working condition, with any necessary repairs or refurbishments carried out to restore functionality. Opting for a used engine can be a cost-effective solution for vehicle owners needing a replacement, offering a balance between affordability and reliability, while also contributing to environmental sustainability by recycling existing components.