Sierra 18-3463 Marine Water Pump Kit with Housing

The Sierra 18-3463 Water Pump Kit is a complete aftermarket replacement cooling system service kit designed for marine outboard and stern drive engines. Engineered to meet or exceed OEM specifications, this kit provides everything needed to restore proper water flow and prevent costly engine overheating damage.

Key Features:

• Complete kit includes impeller, water pump housing, wear plate, impeller key, insert cup, gaskets, O-rings, and hardware
• Impeller constructed from high-quality rubber compounds for reliable water circulation in demanding marine environments
• Composite plastic housing and stainless steel hardware resist corrosion in fresh and saltwater use
• Meets or exceeds original equipment manufacturer (OEM) performance standards
• Direct OEM cross-reference fit for simplified installation

About Sierra Marine:

Sierra International is a leading manufacturer of aftermarket marine engine and drive parts, supplying premium-quality replacements for thousands of marine components. Sierra products are engineered to withstand harsh marine environments and satisfy today's high-horsepower engine demands.

Regular water pump impeller service is critical to engine longevity. Replacing the impeller and pump components at manufacturer-recommended intervals ensures optimal cooling system performance and helps prevent overheating-related engine failure.