It is a direct
Insert the key/pin into the drive shaft slot
Brand Part Number Yamaha (OEM) 6R3-85570-01-00 Yamaha 6R3-85570-00-00 Yamaha 697-85570-00-00 Yamaha 6H2-85570-00-00 Aftermarket 18-5128 Aftermarket 187-6391 Compatible Engine Models
Direct Installation: Mounts in the lower unit water pump assembly as a direct OEM-specification replacement
Sea Water Pump – Fits Volvo Penta, MerCruiser, OMC 4.3L, 5.0L, 5.7L V6/V8 (Replaces 3853850, 8M0113734) family-yamaha-250txrt It is a directSea Water Pump Fits Volvo Penta, MerCruiser, OMC 4. 3L, 5. 0L, 5. 7L V6 V8 This marine water pump is a bi directional circulation pump designed for GM V6 V8 marine engines used in raw water cooling systems across multiple brands. It is a direct, engine mounted replacement for sterndrive and inboard applications. This pump fits a wide range of models, including Volvo Penta 4. 3L, 5. 0L, & 5. 7L engines (1973+); MerCruiser 4. 3L V6, 5. 0L & 5. 7L V8