Sierra International Impeller 18-3069 for Yamaha 2-Stroke Outboard Water Pumps, Replaces 697-44352-00-00

The Sierra International Impeller, part number 18-3069, is a replacement water pump impeller engineered for Yamaha 2-stroke outboard engines. This impeller is the core wear component inside the outboard's water pump housing, driving raw water through the cooling system to keep the powerhead running at safe operating temperatures. As a wear item, the impeller should be inspected regularly and replaced at the interval recommended for the engine, since a cracked, glazed, or missing vane can quickly lead to overheating and engine damage.

This impeller is sold as an individual replacement part and is commonly installed alongside the matching water pump case gasket, wear plate, and impeller key during a full water pump service. It directly replaces the OEM Yamaha impeller listed below, so it installs using the same water pump housing and hardware as the original part.

Specifications

• Brand: Sierra International
• Manufacturer Part Number: 18-3069
• Category: Yamaha Outboard Water Pumps & Impellers, 2 Stroke
• UPC: 030999315212
• Weight: 0.02 pounds

Fitment

• Yamaha 2-stroke outboard engines

Replaces (OEM)

• 697-44352-00-00

Frequently Asked Questions

What engines does the Sierra 18-3069 impeller fit? The 18-3069 impeller is designed for Yamaha 2-stroke outboard engines as part of the water pump assembly.

What OEM part number does 18-3069 replace? Sierra impeller 18-3069 replaces Yamaha OEM part number 697-44352-00-00.

How much does the 18-3069 impeller weigh? This impeller weighs 0.02 pounds.

Is this a genuine Yamaha part or an aftermarket replacement? The 18-3069 is a Sierra International aftermarket impeller manufactured to replace the equivalent Yamaha OEM impeller, part number 697-44352-00-00.

What is included when I order part 18-3069? Ordering 18-3069 gets you a single Sierra International water pump impeller; the matching case gasket, wear plate, and impeller key are sold separately as individual parts.

How do I know when the impeller needs to be replaced? Signs that impeller 18-3069 needs replacement include reduced or no water flow from the tell-tale, engine overheating, or visible cracking, glazing, or missing vanes on the old impeller when the water pump housing is opened.

Does the 18-3069 impeller come with the pump housing or gasket? No, 18-3069 is the impeller only; it does not include the water pump case, gasket, wear plate, or key, which are separate part numbers.

Can I use this impeller on a 4-stroke Yamaha outboard? The 18-3069 impeller is listed for Yamaha 2-stroke outboard water pumps; fitment on 4-stroke models is not confirmed.

What UPC is associated with the Sierra 18-3069 impeller? The UPC for the Sierra International 18-3069 impeller is 030999315212.

Will this impeller fit other outboard brands besides Yamaha? The 18-3069 impeller is categorized specifically for Yamaha outboard water pumps and is not listed for other outboard brands.