Coolant Pump Impeller SIERRA 118-3051

Compatible Engines

The SIERRA 118-3051 coolant pump impeller is a critical component of the cooling system, specifically engineered for JOHNSON and EVINRUDE outboard motors. This part is designed for units with 20/25 HP (produced between 1978-2002) and 30/35 HP two-cylinder models (years 1983-2016). Due to manufacturing variations and specific mounting configurations, precise compatibility verification is essential. We strongly recommend cross-referencing the manufacturer's catalog number 118-3051 with the OE number in your engine's service manual. If you have any doubts regarding fitment, please contact our customer support team for assistance.

Installation and Maintenance

Replacing the impeller is a routine maintenance task best performed during your annual engine inspection. Installing a new SIERRA series impeller ensures uninterrupted water flow through the cooling system, which is vital for maintaining optimal engine operating temperatures. Remember to thoroughly clean the pump housing before installation and use appropriate waterproof grease to extend the life of the new part and prevent seizure.

• SIERRA Original Quality – guarantees durability and effective cooling performance.
• Precision Fit – dimensions 51x19x16 mm ensure a perfect seal.
• Easy Installation – simple replacement speeds up vessel servicing.
• Engine Protection – prevents overheating during intensive use.