Fuel Pump Repair Kit – Fits Johnson/Evinrude Outboards (Replaces 393088)
Fuel Pump Repair Kit – Fits Johnson/Evinrude Outboards (Replaces 393088) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Fuel Pump Repair Kit – Fits Johnson/Evinrude Outboards (Replaces 393088) contains the necessary components to rebuild and restore fuel pump performance on a wide range of Johnson/Evinrude outboards. It is designed for various HP models manufactured between 1977 and 2006, including 2.5, 4, 4.5, 6, 7.5, 8, 9.9, and 15 HP models, as well as all 60° V Vapor Pumps.
This kit serves as a direct replacement for Johnson/Evinrude part numbers 393088 and 777754, and interchanges with Sierra 18-7823, GLM 40810, Pro Marine 1604, and Redline RL7823.
- Services both standard fuel pumps and vapor pumps for broad application.
- Includes all necessary gaskets, diaphragms, and springs for a complete overhaul.
- Engineered to meet OEM specifications for reliable fuel delivery.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 393088 |
| Johnson/Evinrude | 777754 |
| Sierra | 18-7823 |
| GLM | 40810 |
| Pro Marine | 1604 |
| Redline | RL7823 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Johnson/Evinrude outboards, this kit covers an extensive range of models. Please verify your horsepower and year to ensure fitment, paying special attention to notes regarding Rope Start and Vapor Pump applications.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Johnson/Evinrude | Various | 2.5 | 1987–1988 | 393088 | |
| Johnson/Evinrude | Various | 4 | 1981–1998 | 393088 | |
| Johnson/Evinrude | Various | 4.5 | 1981–1984 | 393088 | |
| Johnson/Evinrude | Various | 6 | 1977–2005 | 393088 | |
| Johnson/Evinrude | Various | 7.5 | 1981–1983 | 393088 | |
| Johnson/Evinrude | Various | 8 | 1984–2005 | 393088 | |
| Johnson/Evinrude | Various | 9.9 | 1981–1992 | 393088 | Rope Start models only |
| Johnson/Evinrude | Various | 15 | 1981–1992 | 393088 | Rope Start models only |
| Johnson/Evinrude | All V60 | 1991–2006 | 393088 | Vapor Pump |
Technical Specs
- Product Type
- Fuel Pump Repair Kit
- Fuel Type
- Gasoline
- Housing Color
- Multicolor (assembled components)
- Dimensions
- 13.0" L x 10.0" W x 1.0" H
- Weight
- 0.45 kg (1 lb)
- Warranty
- 30 days from purchase (retailer dependent)
- Other Technical Attributes
- Used for both fuel pumps and vapor pumps
What’s in the Box
- 1 x Base Gasket
- 1 x Pump Diaphragm
- 1 x Diaphragm Support
- 1 x Diaphragm Spring
- 1 x Valve Housing Gasket
- 1 x Air-dome Spring
- 1 x Air-dome Support
- 1 x Air-dome Diaphragm
- 1 x Outlet Housing
- 1 x Cover Gasket
- 1 x Filter Gasket
- 1 x Pump Mounting Gasket
- 1 x Filter Screen (included in kit based on service documents)
Installation Notes
- Disconnect the negative battery cable for safety.
- Carefully relieve any pressure in the fuel system.
- Note the orientation of and disconnect the fuel lines from the pump.
- Remove the mounting bolts and take off the old fuel pump assembly.
- Disassemble the pump on a clean workbench, keeping track of the component order.
- Thoroughly clean all metal parts that will be reused.
- Carefully install the new diaphragms, gaskets, and springs from the kit in the correct order.
- Reassemble the pump housing and tighten screws to the manufacturer's recommended torque.
- Reinstall the rebuilt pump, ensuring the new mounting gasket is in place.
- Securely reconnect the fuel lines.
- Reconnect the battery, prime the fuel system, and start the engine.
- Check thoroughly for any fuel leaks around the pump and fittings.
Troubleshooting & FAQ
How do I know if this kit fits my engine?
First, check the Engine & Model Compatibility table on this page. This kit fits a wide variety of Johnson/Evinrude outboards from 1977-2006. Verify your engine's HP and year fall within the specified ranges. Cross-referencing your old part number with the ones listed in the Part Number Matrix is also a reliable way to confirm fitment.
What are the signs of a failing fuel pump that this kit can fix?
Common symptoms include the engine sputtering or bogging down at high speeds, difficulty starting, frequent stalling, or a general loss of power. These issues are often caused by a ruptured diaphragm or failed seals, all of which are replaced with this kit.
Is this kit for the main fuel pump or the vapor pump (VRO)?
This kit is versatile and can be used to rebuild both standard mechanical fuel pumps and the vapor pumps (Vapor Separator Technology) found on all Johnson/Evinrude 60° V6 engines from 1991–2006.
My old pump looks slightly different. Can I still use this kit?
Manufacturers sometimes make minor cosmetic changes. However, if the internal layout or critical dimensions differ, it may not be compatible. Always compare the included gaskets and diaphragms to your old parts before installation. When in doubt, rely on the part number compatibility.
How often should a fuel pump be rebuilt?
There's no universal service interval, as it depends on fuel quality, ethanol content, and hours of use. It is good practice to inspect fuel pump components every 200 hours or 2-3 years. If the diaphragms appear stiff, cracked, or deformed, it's time for a rebuild.
Is a new filter screen included?
Yes, a new filter screen is included in this kit. According to service documents, replacing the filter screen is a critical step for a complete fuel pump service to ensure clean fuel delivery.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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