Sierra 18-3570 Water Pump Kit for Mercury/Mariner Outboard Motors

The Sierra 18-3570 Water Pump Kit is a complete repair solution designed for Mercury and Mariner outboard engines. This comprehensive kit includes all the components needed to rebuild and restore your marine engine's water pump to factory specifications, eliminating the hassle of sourcing individual parts.

Complete Kit Includes:

• 18-2599 Face Seal and Installation Tool
• 18-3056 Impeller
• 18-3122 Impeller Plate
• 18-7420 O-Ring
• 18-2944 Seal Ring Gasket
• 18-2945 Drain Screw Gasket
• 18-2564 Water Pump Gasket
• 18-2566 Cover Gasket

Sierra marine parts are engineered to meet or exceed OEM specifications, ensuring proper fit and reliable performance in harsh marine environments. This upper water pump kit replaces Mercury OEM part numbers 807929A1, 817275A1, and 817275A2, making it compatible with Mercury 65-115HP outboard engines, as well as MerCruiser Alpha 1 Generation II and Vazer drives.

Why Choose Sierra: With over 50 years of manufacturing experience, Sierra has earned the trust of engine manufacturers and marine professionals worldwide. Each kit is designed to fit right the first time and restore cooling system function to original equipment standards, helping you maximize your time on the water.