Great Compatibility: Works on BENZ M276, M157, M278 Engine. Beyond OEM Stanrded: Advanced blackening hard steel process, durability and anti-corrosion. Ultra-precise design provides high precision and hardness and a much longer service life.Easy to use and will not damage other parts of the car in the process of repair. Benefit: Specially designed to install the inner chain check valve. Replace JTC 6637 and work in an easier way to save your time and money. Easier Work: 1.Put a check valve in the hole. 2.Screw the installer into the cylinder head surface, then turn the pressure screw until the plate is flush with the cylinder head surface to press the check valve into the hole. 3. Take off the installer and make sure that the check valve is flush with the cylinder head surface. Service：ZKTOOL can provide the best service attitude to solve various types of problems, if necessary, please contact us. ApplicationValid for engines: Mercedes Benz M157, M276 and M278.Original number 276589003300. Replace JTC – 6637Installation Procedure:1.Expose cylinder head.2.Cover chain bay with suitable cloth. NOTE: Secure small parts.3.Insert check valve in intended bore. NOTE: Closed end with ball must|point towards rear and open side with thread to the front.4.A spring inside the check valve controls the oil feed to the cylinder head, keeps the oil pressure constant and|prevents the chain rattling.5.Using the press-in tool, press the|check valve flush into the bore.6.Screw press-in tool to cylinder head surface.7.Screw in thrust spindle until pressure plate|contacts the cylinder head surface flush.8.Check valve is pressed in.9.Disassemble press-in tool.10.Check whether check valve is flush with cylinder head surface.11.Start reinstallation of removed parts. We will send it by DHL, you will receive the item within 3-5 days, providing you with the fastest and safest service When the tool is unintentionally damaged, we will reissue it for you to ensure that customers can use it normally When you need to return, just contact our customer service Dear friends, if the package is received and satisfied with our products and services. Please take a minute to leave your feedback and comments to us If you have any dissatisfaction or do not understand, you can contact us before leaving a neutral or negative comment, and we will communicate with you to solve it Your feedback is very important to our business’s development On Mar 14, 2024 at 02:26:30 PDT, seller added the following information: