Communication is the best way to solve problems. If you have any problems after purchase, please contact us in time before opening the return ,We will give you a satisfying solution. Features: 1. Aftermarket high strength timing belt and water pump kit 2. Aluminum die-cast technology allows for size and weight reduction without sacrificing cooling performance 3. Corrosion-resistant and stronger body design & high quality seals to prevent leaking 4. Instruction manual not included, professional installation is recommended .