Peace, mercy, and blessings of God be upon you. The engines are Korean for cars. Full one-year warranty, 12 months. The engine is refurbished by me. Original parts, and everything includes installation, return, and the oil seal for the filter. Korean engines for Sonata, Elantra, Optima, Accent, Tucson, Santa Fe, Kia Carnival, Kia Carens. All types of car engines. Sound of overheating, smoke, and oil leaks.