Hello Friend, if you are unsure if it is suitable for your car model, you can send me the VIN and OEM. Thank you

Transfer Case Assembly Fits for Mercedes-Benz GL/ML/R 350 500 63 AMG 2512801200 2512801800 2512802100

Thank you for your purchase of our transfer case. Before installation, please be sure to add gear oil to the transfer case. Failure to add gear oil before installation can damage the product and may lead to premature failure. Please note that we will not accept returns or claims for products that have been damaged due to improper installation. Proper lubrication is critical to the performance and longevity of your transfer case, and we highly recommend following the manufacturer's instructions for adding gear oil prior to installation. We want to emphasize the importance of using the correct gear oil and adding it in the proper amount. If you have any questions or concerns about the proper installation process, please do not hesitate to contact us for assistance. Thank you for choosing our product, and we hope it provides reliable performance for your application. Gear Oil Type: 75W-90