Sierra 118-3428-1 Water Pump Kit Without Housing for Yamaha Outboard

The Sierra 118-3428-1 is a comprehensive water pump repair kit designed for Yamaha outboard motors. This complete kit includes all essential components needed to rebuild your outboard's water pump system, excluding the housing assembly.

Complete Kit Includes:

• 18-3069 Impeller
• 18-0240 Water Pump Gasket
• 18-0756-1 Water Pump Gasket
• 18-0757 Outer Plate Gasket
• 18-7436 O-Ring
• (2) 18-0256 Mounting Bolts

OEM Cross-Reference:

• Yamaha 6H3-W0078-A0-00
• Yamaha 6H3-W0078-00-00
• Pro Marine 18-3428
• Redline RL3428-1

This kit provides all the necessary gaskets, seals, and impeller components required for a complete water pump rebuild. The impeller is the critical component that circulates cooling water through your outboard motor, preventing overheating and engine damage. Regular replacement of these components ensures reliable cooling system performance and extends engine life.

Note: This is the same kit as Sierra 18-3461 but without the pump housing. If your existing housing is in good condition, this kit provides a cost-effective solution for complete water pump maintenance.