1. How can I be sure the correct component for my vehicle? A: There is the model number on the component body. 2. What if I can't use it? A: Our products meet OEM standards, which is convenient for you to install quickly.If you can't install successfully, You need find professional installers to help you to prevent equipment damage. 3.What is the warranty policy？ A: Please note,because you may make a mistake in the installation and the injector cannot be used, it is not a product quality problem. Product Information: Product Information Name: Hydraulic Pump Proportional Solenoid Valve . Part No.: 702-21-07010. Application: for Komatsu PC220LC-7 PC300-7 PC220LC-6 PC120-6 PC300-6. Material:Metal Package Contents:1 x Solenoid Valve . Return Policy: If you are not satisfied with your purchase, you can return the item, except for any installed parts. When warehouse receives the item in new condition, we will send refund. If your package is lost in transit to us, You need submit a claim to your shipping company directly.We can‘t refund you because we did not receive the return item. Terms of Sales: The amount we charged only covers the product, shipping and handling. Any custom or import tax is Buyer's responsibility.