The Fuel Pump Diaphram 18-7840 is an innovative craft for Mercury and Yamaha outboard engines used with Sierra 18-7787 Fuel Pump Kit.
Diaphragm pumps work using a composite membrane that bends up and down over a fuel bowl. The bowl contains an input and an output, each with a check valve to ensure a one-way fluid flow. As the diaphragm rises, it generates a vacuum that draws gasoline from the fuel tank into the fuel bowl.
A faulty fuel pump diaphragm will cause the fuel pump to provide less fuel pressure than is required for proper engine performance. Because of the low fuel pressure, less gas given to the engine will result in fuel starvation and a too lean air-fuel combination at the carburetor.
Key Features:
Fuel Pump Diaphragm for Mercury and Yamaha outboard engines
Mercury Marine 84141M, 97606M, and Yamaha Outboard 663-24411-00-00 are interchangeable.
Use in conjunction with Sierra 18-7787 Fuel Pump Kit.
High-quality cotton diaphragm bonded with synthetic rubber.
Fits 25, 40, 50, 70, 90 Horsepower
Product Specifications:
Brand: Sea Star Solutions
SKU: 18-7840
UPC: 808282259990
Weight: 0.01 Pounds
Fit Type: Universal Fit
Vehicle Service Type: Marine-personal-craft
Dimensions: 1.12 x 4 x 5.12 inches
Exterior: Machine
Lift Type: Motor
Type: Fuel System Part
Country of Origin: ?USA
Alternate Products SKU: 84141M, REC663-24411-00, 18-7840
Manufacturer Part Number (MPN): 118-7840
Replaces Products: 663-24411-00, 663-24411-00-00, 47-7840, 808282259990, 3099932314
Fuel Pump Diaphragm fitting Mercury and Yamaha Outboard applications
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If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
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