Replaces Mercruiser's Bravo One I/O This item replaces 1992 and up models with the oil passage. It can be modified to back fit 1988-1991. This unit has side water intakes only. 3 year NO FAULT warranty!!! The three year fault-free warranty covers any damage to the drive that requires it to be repaired or replaced including failures resulting from lack of oil, fishing line, impact, neglect, and other abuse. Sterndrive Engineering, Inc. (SEI) manufactures a stern drive designed to replace Mercury Marine's MerCruiser®, Alpha One®, R, MR, Gen II and Bravo One® stern drives. MerCruiser®, Alpha One®, Gen II, R, MR and Bravo One® are trademarks of the Brunswick Corporation. SEI has no affiliation with the Brunswick Corporation. Consequently, any warranties governing products manufactured and/or sold by Brunswick Corporation will not apply to products manufactured and/or sold by SEI, or to products damaged due to the operation of an SEI product. Sterndrive Engineering, Inc. is not affiliated with Mercury®; Yamaha®; OMC® or their products. All reference to their trademarks and trade names are the property of the respective owners. Upon Checkout, please indicate year and HP that you are replacing, if applicable