Fuel Pump – Fits Johnson/Evinrude 18–35 HP 2-Stroke (Replaces 438555, 433386, 18-7353)
Fuel Pump – Fits Johnson/Evinrude 18–35 HP 2-Stroke (Replaces 438555, 433386, 18-7353) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Fuel Pump – Fits Johnson/Evinrude 18–35 HP 2-Stroke (Replaces 43855...
Fuel Pump – Fits Johnson/Evinrude 18–35 HP 2-Stroke (Replaces 438555, 433386, 18-7353) is backordered and will ship as soon as it is back in stock.
Product Details
This fuel pump assembly is designed for Johnson/Evinrude 2-stroke outboard engines in the 18–35 HP range. It provides a direct-replacement solution for restoring proper fuel delivery on compatible applications.
It is listed as a replacement for Johnson/Evinrude OEM parts 438555 and 433386, as well as aftermarket reference Sierra 18-7353 and EMP reference 1399-07353. Always compare the original pump, connection layout, and part number before installation.
- Direct bolt-on replacement design.
- Three-port configuration for vacuum-operated fuel delivery.
- Includes a mounting gasket for installation on compatible applications.
Part Number Matrix
Use the following references to compare OEM and aftermarket part numbers.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 438555 (0438555) |
| Johnson/Evinrude | 433386 (0433386) |
| Sierra | 18-7353 |
| EMP | 1399-07353 |
Engine & Model Compatibility
Confirm the engine model, year, horsepower, stroke, and original fuel-pump part number before ordering. The listed application range covers various Johnson/Evinrude 2-stroke engines from 18 through 35 HP built between 1990 and 2000.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | Various | 18 | 2-Stroke | 1995–1996 | 438555 / 433386 | Verify the original pump and engine model. |
| Johnson/Evinrude | Various | 20 | 2-Stroke | 1990–2000 | 438555 / 433386 | Verify the original pump and engine model. |
| Johnson/Evinrude | Various | 25 | 2-Stroke | 1990–2000 | 438555 / 433386 | Verify the original pump and engine model. |
| Johnson/Evinrude | Various | 28 | 2-Stroke | 1990–1996 | 438555 / 433386 | Verify the original pump and engine model. |
| Johnson/Evinrude | Various | 30 | 2-Stroke | 1990–2000 | 438555 / 433386 | Verify the original pump and engine model. |
| Johnson/Evinrude | Various | 35 | 2-Stroke | 1990–1996 | 438555 / 433386 | Verify the original pump and engine model. |
Technical Specs
- Product Type
- Fuel pump assembly
- Installation
- Direct bolt-on replacement
- Fuel Type
- Gasoline with oil mix for 2-stroke applications
- Connection
- 3-port configuration: fuel inlet, fuel outlet, and vacuum connection
- Housing Color
- Black
- Weight
- 6.5 oz (184 g)
- Fitting Type
- Nipple connectors
- Other Technical Attributes
- Vacuum-operated diaphragm design for fuel delivery
What’s in the Box
- 1 × Fuel pump assembly
- 1 × Mounting gasket
- 3 × Cable ties
Installation Notes
- Disconnect the battery, allow the engine to cool, and safely relieve fuel-system pressure.
- Note the position of each fuel line, then disconnect the lines from the old pump. Use absorbent rags to control fuel spillage.
- Unbolt and remove the old fuel pump from the engine block.
- Clean the mounting surface and remove any remaining gasket material.
- Position the new gasket on the engine block, aligning it with the mounting holes.
- Install the new fuel pump assembly and tighten the mounting bolts to the engine manufacturer’s specified torque. Do not overtighten.
- Reconnect the fuel lines to the corresponding ports and secure them with suitable clamps.
- Prime the fuel system according to the engine service manual.
- Start the engine and inspect the pump and all connections carefully for fuel leaks.
Troubleshooting & FAQ
How do I know if my fuel pump is failing?
Common symptoms can include bogging during acceleration, surging, difficult starting, excessive fuel consumption, stalling at low speed, or visible cracking and fuel leakage around the pump body. Diagnose the fuel system according to the engine service manual before replacing components.
Will this pump fit my specific engine model?
This pump is listed for various Johnson/Evinrude 2-stroke engines in the 18–35 HP range and the year ranges shown in the compatibility table. The most reliable fitment check is to compare your original pump and verify that its part number is 438555, 0438555, 433386, or 0433386.
What is the function of the third port?
This is a vacuum-operated fuel pump. The third port connects to the engine crankcase through a hose. Crankcase pressure pulses actuate the pump diaphragm, moving fuel from the tank toward the carburetors.
Is the mounting gasket included?
Yes. A new mounting gasket is included for installation on compatible applications. Confirm its shape and mounting-hole pattern against the original gasket before installation.
Is this an OEM part?
No. This listing is for an aftermarket replacement fuel pump. It is intended to replace the listed OEM and aftermarket reference numbers, but it is not manufactured by Johnson, Evinrude, Sierra, or EMP.
What are the shipping speed and cost?
Typical transit is 5–15 days. Standard shipping is free, and expedited options are shown at checkout where available.
What is the warranty and return policy?
The product is covered by a 1-year warranty against manufacturing defects under normal use. Returns are accepted within the standard return window when the item is unused and in its original condition. Contact support with your order details for assistance.
Safety & Important Information
- Work in a well-ventilated area away from open flames, sparks, and other ignition sources.
- Verify the engine model, year, horsepower, stroke, original part number, pump ports, and mounting pattern before ordering.
- Do not operate the engine if fuel leaks are present. Inspect all connections after installation.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended when the correct procedure or engine specifications are uncertain.
About Sea Sierra
- Pro-Grade Standards — Marine replacement parts selected for dependable performance in real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions, with typical transit of 5–15 days.
- Manufacturer-Direct Value — Competitive pricing without compromising material selection or quality control.
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