Accelerator Pump Repair Kit – Fits Mercury 80-125HP Outboards (Replaces 811287, 1395-811287)

Accelerator Pump Repair Kit – Fits Mercury 80-125HP Outboards (Replaces 811287, 1395-811287)

This accelerator pump repair kit is designed for Mercury 80 Jet and 4-cylinder outboard models, including 100HP, 115HP, and 125HP engines manufactured between 1988 and 2004. It provides the essential components to restore accelerator pump function, addressing common issues like engine hesitation or stumbling upon acceleration.

This kit is a direct replacement for Mercury OEM part numbers 811287 and 1395-811287, as well as Sierra aftermarket part 18-97354.

• Installation Type: Direct OEM-style replacement
• Material Construction: High-quality rubber and plastic components resistant to gasoline
• Primary Function: Restores carburetor accelerator pump performance

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.

Technical Specifications

Package Contents

• 1 x Accelerator Pump Repair Kit (1395-811287)

Installation Guide

1. Safety First: Disconnect the battery and ensure the engine is cool. Work in a well-ventilated area.
2. Relieve Fuel Pressure: Follow the manufacturer's procedure to safely relieve any pressure in the fuel system.
3. Remove Carburetor: Carefully disconnect fuel lines, linkages, and mounting bolts to remove the carburetor(s) from the engine.
4. Access Accelerator Pump: Disassemble the carburetor to expose the accelerator pump housing and diaphragm.
5. Remove Old Components: Carefully take out the old diaphragm, spring, and any associated seals, noting their orientation.
6. Clean Surfaces: Thoroughly clean the pump housing and carburetor passages with a quality carburetor cleaner. Ensure all old gasket material is removed.
7. Install New Kit: Install the new components from the repair kit in the reverse order of removal.
8. Reassemble Carburetor: Reassemble the carburetor, ensuring all screws are torqued to the manufacturer's specification.
9. Reinstall Carburetor: Mount the carburetor back onto the engine and reconnect all lines and linkages.
10. Check for Leaks: Reconnect the battery, prime the fuel system, and carefully check for any fuel leaks before starting the engine.
11. Test and Adjust: Start the engine and let it warm up. Test the throttle response and adjust the idle mixture and speed if necessary.

Troubleshooting & FAQ

How do I confirm this kit fits my engine?
Check your engine's serial number against the range listed in the compatibility table (0D283222-0G760299). This kit is specifically for the Mercury 80 Jet, 100, 115, and 125 HP 4-stroke models from 1988-2004.

What are the signs of a failing accelerator pump?
Common symptoms include a noticeable hesitation, bogging, or stumbling when you try to accelerate quickly. You may also experience poor overall engine performance or difficulty starting.

Does this kit include everything I need for the repair?
This kit includes the core components to rebuild the accelerator pump circuit. While the exact component list is not detailed, it is designed to replace OEM part #1395-811287. We recommend comparing the product photo to your existing parts to ensure it meets your needs.

OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.