1Applicable Models: Engine water pump base is fit for outboard lower units 40 to 75 Hp 2 stroke 4 stroke, and replacement for Mariner outboard lower units 40 to 75 Hp 2 stroke 4 stroke. 2OE Number: The part numbers of reference are 46 812966A7, 18 3445, 96 265 10K, please confirm whether it is consistent with the OE you need. 3Superior Performance: Outboard water pump base provides excellent driving power and good control. It can effectively improve the stability of the outboard water pump in the mounting location, preventing it from accidentally sliding or rocking, ensuring safe operation. 4Rubber Material: Water pump base is made of high grade rubber material, which is wear resistant and heat resistant, and is able to maintain stable performance and reliability in the ship's extreme marine environment. 5Perfect Fit: Strictly according to the original factory size design and production, meets or exceeds the Oem standard, outboard engine water pump base can be installed as a direct replacement, no need to change, convenient and time saving.