Autopartmax.com offers you remanufactured engine instead of rebuilt engine. Remanufactured engine is completely disassembled, inspected, re machined, reassembled and tested to ensure original specifications and performance. It is much more complicated then replacing a few parts. In Remanufactured added parts to the engine build level making the engine quicker to install. ALL Remanufactured engine Include 36 Months/100,000 Miles Warranty. With no core charge, no tax and no extra cost.