When facing a failed or damaged motor, there are several engine replacement options available to vehicle owners. You can choose a used engine sourced from a salvage yard, which is the most affordable option. A remanufactured engine is fully rebuilt to factory specifications and offers higher reliability. A rebuilt engine is repaired using replacement parts and sits between used and remanufactured in terms of quality. Crate engines are brand-new units purchased directly from manufacturers. Each engine replacement option varies in cost, warranty coverage, and lifespan. Choosing the right option depends on your budget, vehicle age, and how long you plan to keep the car.