NEW Repair Kit Accelerator Pump For Mercury 80-125HP 1988-2004 811287 8M0138942

Repair Kit Accelerator Pump for Mercury

This repair kit accelerator pump for Mercury 80-125HP 1988-2004 provides the necessary components to restore the accelerator pump function in compatible outboard engines. It includes the gaskets and parts needed to address a worn or leaking accelerator pump system.

Overview

This repair kit accelerator pump is a replacement service kit intended for Mercury outboard motors rated 80 to 125 horsepower, manufactured between 1988 and 2004. The kit contains the correct diaphragm, gaskets, and related parts to rebuild the accelerator pump assembly, which delivers the extra fuel needed during rapid throttle opening. It is a direct service component that helps maintain smooth acceleration and reliable engine response in the specified Mercury models.

Built For Performance

• Includes the necessary diaphragm, gaskets, and seals for a complete pump rebuild
• Compatible with Mercury 80-125HP outboards from 1988 through 2004
• Restores proper fuel delivery during throttle transitions
• Uses OEM part cross-references 811287 and 8M0138942 for identification
• Helps prevent hesitation or stumbling when accelerating

Fits These Machines

• for Mercury 80HP outboards
• for Mercury 90HP outboards
• for Mercury 100HP outboards
• for Mercury 115HP outboards
• for Mercury 125HP outboards

On-The-Job Use

• Used during routine carburetor service on mid-range Mercury outboards
• Ideal for repairing a leaking or weak accelerator pump that causes bogging
• Commonly installed during a full fuel system rebuild for older two-stroke Mercury engines
• Suitable for both freshwater and saltwater applications when the engine is properly maintained

Specs At A Glance

Good To Know

Q: Is this repair kit a genuine Mercury part? A: This kit is an aftermarket replacement that is designed to fit Mercury outboards; it is not an original Mercury product but meets the same functional specifications.

Q: What is the typical sign that the accelerator pump needs this kit? A: A common indicator is a flat spot or hesitation when advancing the throttle quickly, which points to a failed diaphragm or seal inside the pump assembly.

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