Sierra Mercury/Mariner/Yam Outboard Impellor 18-3067

Sierra 18-3067 Water Pump Impeller – Yamaha & Mercury OutboardsKeep your outboard running cool and reliable with the Sierra 18-3067 Impeller. This high-quality marine-grade neoprene impeller is engineered as a direct OEM replacement to restore proper cooling water flow and help prevent engine overheating.

Features

• Durable neoprene construction built to meet or exceed OEM specifications
• 6-fin design for efficient water circulation
• Precision fit for easy, straightforward installation
• Suitable for both freshwater and saltwater use 

Compatibility

• Fits popular Yamaha and Mercury/Mariner outboard engines, including:Yamaha: 25 HP (1984–1997) 2-stroke 2-cylinder
• Yamaha: 30 HP (1984–1992) 2-stroke 2-cylinder
• Mercury/Mariner: 20, 25, 28 & 30 HP models (various years, including 25C, 30A, and similar)
• Replaces OEM / Aftermarket Part Numbers:Yamaha 689-44352-00-00 / 689-44352-01-00 / 689-44352-02-00, Mercury 47-84797M / 47-81604M, Mallory 9-45600, GLM 89890

Specifications

• Hole: 16mm
• Length ex splines: 28mm
• Length inc splines: 70mm
• Depth: 12mm