Sierra 18-3506-1 Water Circulating Pump for GM 4.3L V6 Marine Engines

The Sierra 18-3506-1 is a high-quality aftermarket water circulating pump designed specifically for GM V6 4.3L marine sterndrive engines. This specialized pump is engineered for newer 4.3L engines without water bypass holes, ensuring proper coolant circulation and optimal engine temperature management in marine applications.

Key Features:

• Designed for GM V6 4.3L MerCruiser sterndrive engines with serial number 1A063240 and up (2007 to current)
• Specifically engineered for engines without water bypass hole
• Manufactured to meet or exceed OEM specifications and requirements
• Includes mounting gaskets for complete installation
• Direct replacement for MerCruiser and Volvo Penta OEM pumps

OEM Cross-Reference Numbers:

• MerCruiser: 46-879194366, 46-879194401, 46-8M0094406, 46-8M6005225
• Volvo Penta: 21124846

Sierra Marine is a market leader in aftermarket marine engine parts, offering comprehensive product coverage for all major marine engine brands with an unsurpassed customer satisfaction warranty covering both parts and labor. All Sierra products are engineered to withstand the harsh marine environment and meet the demands of today's high-performance engines.