Adjustable Size: This oil pump cap has a wide adjustment range that fits different oil pump caps. Maximum diameter: 185mm - Minimum diameter: 135mm. Flexible foot type with radiant design, better fit the mounting surface of the oil pump cover to ensure that the operation is not easy to slip. A Must-Have Tool: This fuel tank cap tool will help you replace the carburetor quickly and efficiently without damaging the oil pump bushings. Usage: This fuel pump removal tool can easily remove and install the fuel tank lock ring when servicing the fuel pump or fuel sending unit. Applications: This fuel tank bushing tool is suitable for vehicles to remove and install the fuel pump support bushing that holds the fuel pump module to the fuel tank.