SIERRA 118-0590 Cooling Water Pump Seal Kit

Compatible Engines

Maintain the full performance of your outboard drive by ensuring a proper seal in the cooling system. The SIERRA 118-0590 cooling water pump seal kit is a critical maintenance component that prevents pressure loss and air ingress into the system. This part is designed for a wide range of outboard engines, including models from the B20, AQ125A, AQ115B, AQ130A, AQ130B, AQ130C, AQ130D, BB115A, BB115B, and BB115C series. Due to variations in technical configurations across different production years, compatibility must always be verified by the manufacturer's catalog number 118-0590 or the original OE number. If you have any doubts about fitting this part to a specific engine, we strongly recommend contacting our store support team to help you select the correct component.

Installation and Operational Advice

Replacing seals in the water pump is a task that should not be taken lightly. Even the smallest leak can lead to engine overheating, resulting in costly repairs to the cylinder head or engine block. When removing the old pump, pay special attention to the condition of the seals – always use new elements from the Sierra kit, even if the old ones appear to be in good condition. Old seals lose their elastic properties, increasing the risk of failure during the season. Before installation, ensure that the contact surfaces are clean and free of scratches. Tightening the screws precisely according to the torque specified by the engine manufacturer is key to the durability of the repair.

• Original Quality – SIERRA products guarantee durability and compliance with standards.
• Complete Kit – includes all necessary seals for a comprehensive pump repair.
• Overheating Protection – effective sealing ensures a continuous flow of cooling water.
• Easy Installation – replacement is simple and does not require specialized equipment.