Sierra 18-3510 Water Pump Impeller Service Kit

The Sierra 18-3510 is a water pump impeller service kit designed to restore proper cooling system function on compatible outboard motors. This all-inclusive kit consolidates every critical replacement component into a single package, eliminating the need to source individual parts separately and making routine water pump maintenance straightforward and efficient.

Outboard engines depend on a healthy water pump to circulate cooling water and prevent overheating. Replacing the impeller and associated sealing components at regular service intervals is essential to long engine life and reliable on-water performance. The Sierra 18-3510 kit provides everything needed to complete a proper water pump service.

Kit Includes:

• Replacement impeller
• Marine-grade seals with 316 stainless steel garter springs
• Gasket
• O-ring
• Stainless steel screws

Key Features:

• Replaces Johnson OEM part number 09-45589
• Components engineered to meet or exceed OEM specifications
• 316 stainless steel hardware for superior corrosion resistance in marine environments
• All-in-one kit design simplifies the service process
• Manufactured by Sierra, a trusted name in marine aftermarket parts with decades of industry experience

Sierra's water pump service kits are built to withstand the demands of the marine environment, providing reliable sealing and impeller performance season after season. Cross-reference: Johnson 09-45589.