Shop by Brand Yamaha OutboardReed Valve Assembly ; Reed Set Back Reed Set 66T-W0004-00-00 Viewer:593 OEM No.: 66T-W0004-00-00 For YAMAHA outboard 40 HP E40MHZ E40X 40X You May Also Be Interested In Reed Valve Assembly 66T-13610-01-00 Reed Valve Assembly 677-13610-00-00 Gasket, Valve Seat 688-13621-00-00/688-13621-A1-00 Anode 55125-94502