Water Pump Impeller SIERRA 18-3016-1

Compatible Engines

The SIERRA 18-3016-1 water pump impeller is a critical component ensuring proper coolant circulation in the cooling system. With precise dimensions (66.5x50.6x15.25 mm), it guarantees a tight fit and efficient heat dissipation from the engine head. This product is dedicated to MERCRUISER/MERCURY units, including models 8.1S HO, 496 MAG, and Bravo III, confirming its high quality and compliance with original specifications.

Remember that compatibility should always be verified by the manufacturer's catalog number 18-3016-1 or OE number. If you have any doubts, please contact our customer support.

Installation and Operation

• Original SIERRA quality – durability and reliability in harsh conditions
• Precise dimensions – perfect fit for the pump housing
• Easy installation – replacement without special equipment
• Engine protection – effective cooling prevents overheating
• Wide compatibility – support for popular Mercury/MerCruiser engines

When replacing the impeller, we recommend checking the condition of the seals and the cleanliness of the pump chamber. Regular maintenance of the cooling system extends the life of your outboard motor.