Sierra Marine 1835861 Circulating Water Pump

The Sierra Marine 1835861 Circulating Water Pump is a replacement marine engine component designed to support reliable cooling-system operation. As part of the engine’s circulation system, the pump helps move coolant through the engine and associated cooling passages, allowing heat to be transferred away from critical components during operation. Proper coolant circulation is essential for maintaining stable engine temperatures and supporting dependable performance on the water. This pump is identified by Sierra Marine part number 1835861 for reference when comparing replacement components and confirming application compatibility.

Built for marine service, the Sierra Marine circulating water pump is suited to replacement and repair projects where the original pump has become worn, damaged, or otherwise unable to provide consistent circulation. Replacing a compromised pump can help restore the cooling system’s intended operation and may support the protection of the engine from excessive operating temperatures. The component should be installed according to the applicable engine service procedures, with related seals, mounting surfaces, hoses, and fasteners inspected before installation. Any worn associated parts should be addressed as needed to help ensure a proper repair.

Before ordering or installation, compare the Sierra Marine 1835861 part number with the original component and consult the engine manufacturer’s application information. Marine engines can use different pump designs across model years and configurations, so confirmation of