18-7817 Fuel Pump Diaphram Gasket Kit for Mercury/Mariner Outboard 21-857005A1

Fuel Pump Diaphragm Gasket Kit for Mercury/Mariner

This fuel pump diaphragm gasket kit is a direct replacement for Mercury and Mariner outboard engines, referencing OEM cross-reference numbers 18-7817 and 21-857005A1.

Overview

The fuel pump diaphragm gasket kit for Mercury/Mariner outboards restores proper fuel pump function. This fuel pump diaphragm gasket kit includes the diaphragm and gasket needed to rebuild the fuel pump. It is designed for Mercury and Mariner outboard engines to ensure reliable fuel delivery.

Built For Performance

• Replaces OEM fuel pump diaphragm part numbers 18-7817 and 21-857005A1
• Includes precision-cut diaphragm and gasket
• Compatible with Mercury and Mariner outboard fuel pumps
• Ensures proper fuel metering and pressure
• Simple to install with basic tools

On-The-Job Use

• Replacing a leaking diaphragm in Mercury/Mariner outboard fuel pump
• Restoring fuel flow in engines that run rough or stall
• Performing routine fuel pump maintenance
• Fixing fuel pump vacuum loss due to worn diaphragm

Specs At A Glance

Good To Know

Q: Is this diaphragm gasket kit compatible with all Mercury and Mariner outboards? A: It is designed for Mercury and Mariner outboard fuel pumps, but always verify engine model and serial number before ordering.

Q: What is included in the kit? A: The kit includes the fuel pump diaphragm and gasket, ready for installation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.