How long should a warranty on a used engine be for?

A warranty on a used engine typically ranges from 30 days to 12 months, depending on the seller and the engine's condition. Shorter warranties may be offered for older engines with higher mileage, while refurbished or low-mileage engines may come with longer warranties. It's essential to check the warranty terms carefully to understand what is covered and any conditions that apply. Always consider purchasing from reputable sellers who stand behind their products.