The Sierra 18-3599 Circulation Water Pump circulates engine coolant through the internal cooling circuit in Mercruiser applications. It replaces Mercruiser 8M0113734.
For: GM V6 & Small Block V8 engines
Bi-Directional pump
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-3599?
Sierra 18-3599 is an aftermarket circulation water pump for Mercruiser & Volvo Penta applications.
Which part numbers cross-reference Sierra 18-3599?
This listing cross-references Mercruiser 3853850, OMC 3853850, Volvo Penta 3853850 and Crusader 20318. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-3599 fits my Mercruiser & Volvo Penta application?
Contact us with your engine model and serial number and we'll help check suitability.