1、OE Number: The referencing OE number of this outboard motor water pump housing is 63D 44341 00 00, the oil seal is 93101 25M57 00, the O ring is 93210 48MG8 00. 2、Fitment: The boat motor water pump housing assy is a replacement for 2 4 Stroke 40HP 50HP 60HP, please check the model of your outboard engine before ordering. 3、Premium Material: Manufactured from wear resistant materials, the water pump housing kit could resist daily wear and tear, ensuring reliable operation and a long lifespan. 4、Perfect Match: Manufactured according to original specifications to ensure shape and function matching of original equipment, designed to refurbish and replace damaged old water pump housing. 5、Ideal Replacement: Direct replacement installation, meets or exceeds OEM standards for the replacement of old and damaged one on original vehicles.