Description
SIERRA MerCruiser / Volvo Penta Circulating Water Pump – 18-3506-1
The SIERRA MerCruiser / Volvo Penta Circulating Water Pump – 18-3506-1 is a fitment-specific marine engine cooling-system component intended for reliable service in the applications listed below. It is engineered as a direct replacement for the specified OEM configuration, helping restore proper cooling-water or coolant flow and reduce the risk of overheating.
- Fitment-specific mercruiser / volvo penta circulating water pump for the engine or drive applications listed below
- Engine-mounted circulating pump for closed-loop coolant circulation on the specified sterndrive engines
- Replaces the applicable OEM and aftermarket references shown in the specifications
- Marine-duty replacement components selected for the specified pump or thermostat configuration
- Verify engine model, model year, serial number and OEM reference before installation
Before installation, verify the bypass configuration and all hose connections against the engine serial number. Inspect belts, pulleys, gaskets and coolant hoses while the pump is accessible.
Specifications
- Manufacturer: SIERRA
- Part Number: 18-3506-1
- Product Type: MerCruiser / Volvo Penta Circulating Water Pump
- Applications: MerCruiser V6 MCM applications serial number 1A063240 and newer, including newer 4.3L engines without the water-bypass hole; also replaces Volvo Penta 21124846
- OEM / Aftermarket Interchange:
- Mercruiser Stern Drive: 46-879194366, 46-879194401, 46-8M0094406, 46-8M6005225
- Volvo Penta: 21124846
- Country of Origin: CN
- HS Code: 84133000
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