Maintain your engine's cooling system with this New Outboard Water Pump Impeller manufactured by EMP. This professional-grade component is specifically engineered for Johnson and Evinrude 2-cylinder, 40 HP outboard engines produced between 1974 and 1997.
The impeller is a critical wear item that ensures water is circulated through the engine block to prevent thermal damage and overheating. This replacement unit is precision-molded from high-quality marine elastomers, offering superior resistance to salt, oil, and chemicals. Designed for a perfect fit, it restores the factory-standard water pressure needed for safe and efficient engine operation.
Product Features
- Manufacturer: EMP (Engine Machine Pro)
- Application: Johnson & Evinrude Outboard Motors
- Year Range: 1974 – 1997
- Blade Count: 6 Blades
- Technical Specs: ID: 15.875 mm | OD: 50.8 mm | W: 19.05 mm
- Primary OEM Replacement: 390286
- Cross Reference Numbers: Sierra 18-3366; GLM 89990; Mallory 9-45212
- Condition: 100% Brand-New
Motor Compatibility
This impeller is compatible with the following 1974–1997 Johnson & Evinrude models:
- Engine Type: 2-Cylinder
- Horsepower: 40 HP
- Note: Hub uses Key 47-01407.
Additional Information
NOTE: To ensure a proper seal and long service life, verify that the water pump housing and wear plate are free of scoring or pitting. If the internal surfaces of the pump housing are worn or show signs of heat damage, a full water pump repair kit is recommended to ensure adequate cooling at high RPMs.
Shipping Information
SHIPPING: Additional shipping fees to Alaska, Hawaii, U.S. Territories, or international destinations will be calculated after checkout.
You will receive an email and a PayPal money request for the additional shipping charges at the email address provided.
(Some items are excluded from international shipping.)
Customer Support
For questions or to confirm compatibility, please email customerservice@marinepartswarehouse.com.
Please include your engine model number to help our technicians confirm the correct fitment for your specific gearcase.
