Coolant Pump Impeller SIERRA 18-3079

Compatible Engines

The SIERRA 18-3079 coolant pump impeller is a critical component of the cooling system, engineered for reliability and long service life. This high-quality replacement part is primarily designed for VOLVO PENTA and YANMAR engines, including the 2GM/GM20, 2QM/QM15/QM20, 3GM/GM30/QM30 series, as well as models SVE8-SVE12, AQD2B, MB10, MD1 (SN14016-)/1B, MD2B, and MD2010A/B. Key dimensions are 39.7x19.1x9.5 mm. Note: Due to the variety of engine configurations, compatibility should always be verified by the manufacturer's catalog number (18-3079) or OE number. If in doubt, please contact our support team.

Installation and Maintenance

Proper installation of the impeller is essential for efficient cooling. We recommend replacing it with a new one every time the pump is disassembled for inspection. Use silicone grease to facilitate installation and prevent sticking. Regular inspection of the impeller condition prevents engine overheating.

• Original SIERRA Quality: Guaranteed durability and wear resistance.
• Precise Fit: Exact dimensions 39.7x19.1x9.5 mm ensure a tight seal.
• Wide Compatibility: Fits popular Volvo Penta and Yanmar models.
• Engine Protection: Effective cooling prevents thermal failures.
• Easy Replacement: Simple installation during standard service.