Sierra Marine 188910 Marine Engine Water Pump Impeller

Use With 18-3450/ 18-3410 Water Pump; Single; Fits Yamaha Outboard Engines

The Sierra Marine 188910 Impeller is a replacement component for marine engine water pump and cooling system applications. It is designed to help maintain proper water circulation through the engine, supporting consistent cooling performance during operation. This impeller is suitable for repair, service, and preventive maintenance when an existing impeller is worn, damaged, or no longer delivering dependable flow.
Use the Sierra Marine 188910 as part of a properly matched marine cooling system service. Regular inspection of the impeller and related pump components can help identify wear caused by age, dry running, debris, or extended operation. Replacing a deteriorated impeller at the appropriate service interval helps reduce the risk of overheating and supports reliable engine operation.
The Sierra Marine brand is recognized for marine replacement parts made for service and maintenance needs. Part number 188910 provides a straightforward reference when verifying the correct replacement for your application. Always compare the original impeller, pump assembly, engine information, and manufacturer service documentation before installation to confirm compatibility.
For best results, install the Sierra Marine 188910 according to the water pump manufacturer’s procedures. Inspect the housing, cover, key, gasket, and other associated components as applicable, and replace damaged parts before returning the system to service. Correct installation and regular maintenance help promote dependable cooling system performance in demanding marine environments.

Features:

• Marine replacement impeller for compatible engine water pump and cooling system applications

• Helps maintain water circulation through the engine for consistent cooling performance

• Suitable for service, repair, and preventive marine engine maintenance

• Sierra Marine part number 188910 for application and replacement reference

• Supports reliable operation when installed with properly matched pump components