Sierra 18-3577-2 Big Block V8 Circulating Water Pump

Sierra 18-3577-2 Big Block Water Circulating Pump for MerCruiser, Volvo, OMCFits: Big block GM engines with stamped steel timing covers(Bi-Directional)Used on MerCruiser, Crusader, OMC, Pleasurecraft and Volvo Penta Marine engines.s/s from 18-3577-1Interchangeable with:Crusader176703010967859811573EMP95-01660GM6269358MerCruiser Stern Drive1767046-8M0113735491395453459972678598115738504548504540028504541878342F6269358FI1100997FI1101053MESWP415MOMC Inboard6269358OMC Stern Drive38541183855991983296986074987447PleasurecraftRA057019Volvo Penta3855991856609Frequently Asked QuestionsWhat is the Sierra 18-3577-2 Big Block Water Circulating Pump used for?The Sierra 18-3577-2 Big Block Water Circulating Pump is designed for Big Block GM engines with stamped steel timing covers. It is a bi-directional water circulating pump used on MerCruiser, Crusader, OMC, Pleasurecraft, and Volvo Penta marine engines.What engines does the Sierra 18-3577-2 water circulating pump fit?This water circulating pump fits Big Block GM engines with stamped steel timing covers. The supplied information specifies that the pump is bi-directional and is used on MerCruiser, Crusader, OMC, Pleasurecraft, and Volvo Penta marine engines.Is the Sierra 18-3577-2 water circulating pump bi-directional?Yes. The Sierra 18-3577-2 water circulating pump is specified as bi-directional. It is designed for Big Block GM engines with stamped steel timing covers and is used across the listed MerCruiser, Crusader, OMC, Pleasurecraft, and Volvo Penta marine engine applications.What marine engine brands use the Sierra 18-3577-2 water circulating pump?The Sierra 18-3577-2 is used on MerCruiser, Crusader, OMC, Pleasurecraft, and Volvo Penta marine engines. The application is specifically listed for Big Block GM engines with stamped steel timing covers, so verify your engine configuration before ordering.What part numbers are interchangeable with Sierra 18-3577-2?The supplied interchange numbers include Crusader 17670, 30109, 67859, and 811573; EMP 95-01660; GM 6269358; Pleasurecraft RA057019; and Volvo Penta 3855991 and 856609. Additional MerCruiser Stern Drive and OMC numbers are also listed in the supplied product information.Does Sierra 18-3577-2 replace another Sierra water circulating pump?Yes. The supplied product information identifies Sierra 18-3577-2 as a superseding part from Sierra 18-3577-1. Verify your existing pump part number and engine configuration to confirm that this superseding water circulating pump is correct for your application.//