Fuel Pump – Fits Johnson/Evinrude 6-15 HP Outboards (Replaces 397274, 397839, 391638, 395091)

Fuel Pump – Fits Johnson/Evinrude 6-15 HP Outboards

This mechanical fuel pump is a direct replacement for 2-stroke Johnson and Evinrude outboards from 6 HP to 15 HP, primarily covering models manufactured between 1981 and 1992. It is also compatible with select older models, including certain 9.5 HP engines from 1965 and 25 HP engines from the 1970s that utilize a 2-port fuel pump design.

This pump serves as a reliable replacement for multiple OEM and aftermarket part numbers, ensuring a proper fit for a wide range of popular outboard engines. It is engineered to meet or exceed original equipment specifications for consistent fuel delivery.

• Direct Replacement: Fits and functions like the original pump for Johnson/Evinrude, Sierra, and Mallory parts.
• Complete Kit: Includes a new fuel pump and the required mounting gasket for a complete installation.
• Installation: Mounts directly to the engine block, utilizing a mechanical, engine-driven design.

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 Johnson/Evinrude owners, here’s a guide to help you identify your engine’s serial/model: Johnson/Evinrude Serial Number Guide.

Technical Specifications

Package Contents

• 1 x Fuel Pump (Replaces 397274, 397839, 391638, 395091)
• 1 x Mounting Gasket (Replaces Sierra 18-0850)

Installation Guide

1. Safety First: Disconnect the battery and work in a well-ventilated area away from sparks or flames.
2. Locate Pump: Identify the existing fuel pump on the engine block.
3. Disconnect Fuel Lines: Carefully loosen the clamps and disconnect the inlet and outlet fuel lines. Have a rag ready for any minor fuel spillage.
4. Remove Old Pump: Unbolt the two mounting bolts holding the old pump to the engine.
5. Clean Surface: Thoroughly clean the mounting surface on the engine block, removing all old gasket material.
6. Install New Gasket: Place the new mounting gasket onto the engine block, aligning it with the bolt holes.
7. Mount New Pump: Position the new fuel pump over the gasket and secure it with the mounting bolts. Tighten them evenly.
8. Reconnect Fuel Lines: Attach the inlet and outlet fuel lines to the new pump and secure the clamps. Ensure they are tight to prevent leaks.
9. Final Check: Reconnect the battery. Prime the fuel system if necessary and start the engine. Check carefully for any fuel leaks around the pump and connections.

Troubleshooting & FAQ

Q: How do I confirm this fits my specific engine model?

A: The best way is to compare your original part number to the list in our 'Part Number Cross-Reference' table. You can also check your engine's model, horsepower, and year against the 'Compatible Engine Models' list. Visually matching your old pump to our product images is also a good final check.

Q: What are the common signs of a failing fuel pump?

A: Common symptoms include difficulty starting the engine, stalling at low speeds, rough idling, loss of power during acceleration, and engine hesitation. You may also notice the primer bulb does not stay firm or the engine runs better when you manually pump the bulb.

Q: How often should I replace my outboard's fuel pump?

A: There is no strict replacement interval for mechanical fuel pumps. They are typically replaced when they fail. However, if your engine is over 20 years old or you are performing a major overhaul, replacing it as a preventative measure is a good idea to ensure reliability.

Q: OEM vs. Aftermarket?

A: 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.

Q: How fast do you ship and how much does it cost?

A: 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.

Q: What is your warranty and return policy?

A: 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.