Sierra 18-3150 Raw Sea Water Pump for MerCruiser Bravo Serpentine - Used

Sierra 18-3150 raw / sea water pump assembly with serpentine pulley, aftermarket replacement for Mercury MerCruiser Bravo sea water pumps in the 46-807151A## family. Cover is molded 'Sierra 18-3150' with RH ROT / LH ROT rotation index marks. Application: Mercury MerCruiser Bravo serpentine-belt sea water pump (buyer to confirm exact engine coverage). Condition: used, untested take-off; housing complete with pulley and cover, pulley shows surface rust, internal impeller not verified and should be considered a replace-on-install item. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.