The OTC Tools OTC-6757 Injector Seal Installer and Sizer Adapters are essential for any professional mechanic working on 1998-2014 GM engines equipped with SIDI single-seal injectors. This high-quality tool kit ensures precise and efficient installation of replacement injector seals, minimizing the risk of costly engine damage from leaks and misfires. The OTC-6757 kit's design simplifies a complex procedure, reducing service time and labor costs, maximizing your shop's efficiency. As a Bosch brand, OTC delivers trusted performance and reliability. This precision tool is compatible with numerous Buick, Cadillac, Chevrolet, and GMC vehicles, making it a valuable addition to any professional fleet repair shop. The kit includes the necessary installer and sizer adapters for a complete and correct seal installation. The OTC-6757 Injector Seal Installer and Sizer Adapters are the ultimate solution for ensuring correct installation of replacement injector seals on a wide range of GM vehicles. This precision tool kit increases efficiency and minimizes the potential for costly repair errors, making it an indispensable asset for any professional fleet maintenance operation. Invest in the OTC-6757 today and experience the difference that professional-grade tools can make.