Sierra 18-7353 Fuel Pump, Replaces OMC 433386/438555, for Johnson/Evinrude 20-30 HP Outboards 1990-2000

The Sierra 18-7353 is a replacement fuel pump built for Johnson/Evinrude outboard engines rated 20-30 HP for the 1990-2000 model years. It draws fuel from the tank and delivers it to the carburetor at the pressure and volume the powerhead requires, restoring reliable starting and steady running on engines whose original pump has worn out, developed a diaphragm leak, or lost priming pressure.

The pump body is constructed of aluminum for corrosion resistance in the marine environment, with mechanically threaded NPT inlet and outlet connections for a secure fuel-line fit. It is a direct cross to the OMC 433386 and 438555 fuel pumps used on this engine range, and pairs with Sierra service kit 18-7800 when a rebuild rather than full pump replacement is preferred. Each Sierra fuel pump is manufactured to meet or exceed the performance of the original equipment part it replaces.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7353
• Product Type: Fuel Pump
• Replaces (OEM): 438555, 433386
• Fitment: Johnson/Evinrude 20-30 HP outboards, 1990-2000
• Compatible Service Kit: 18-7800
• Body Material: Aluminum
• Connector Type: NPT
• Inlet/Outlet Connection: Mechanical Threaded
• Weight: 0.36 pounds
• Item Dimensions: 0.39 x 0.39 x 0.39 inches
• UPC: 808282111557

Fitment

• Johnson/Evinrude outboards, 20-30 HP, 1990-2000

Replaces (OEM)

• 438555
• 433386

Frequently Asked Questions

What engines does the Sierra 18-7353 fuel pump fit? The 18-7353 is built for Johnson/Evinrude outboards rated 20-30 HP for the 1990-2000 model years.

What OEM part numbers does the 18-7353 replace? It replaces OMC 433386 and 438555, so either number can be used to confirm the 18-7353 is the correct match for your outboard.

Is this a genuine Sierra part or an aftermarket copy? The 18-7353 is a Sierra-branded replacement fuel pump manufactured to meet or exceed the performance of the original OMC 433386/438555 pump it replaces, not a generic knockoff.

What is the fuel pump body made of? The Sierra 18-7353 has an aluminum pump body, chosen for its corrosion resistance in marine use.

How does the fuel line connect to the 18-7353? Inlet and outlet connections are mechanically threaded NPT fittings.

How much does the 18-7353 fuel pump weigh? It weighs 0.36 pounds.

What are the dimensions of the 18-7353? The pump measures 0.39 x 0.39 x 0.39 inches.

Can I rebuild my existing pump instead of replacing it? Yes, Sierra service kit 18-7800 is the compatible kit for rebuilding a pump in the same 20-30 HP, 1990-2000 Johnson/Evinrude application as the 18-7353.

What comes in the box with the 18-7353? The listing includes one complete Sierra 18-7353 fuel pump, ready for direct installation in place of the worn OMC 433386/438555 unit.

Why would I need to replace my outboard's fuel pump? A worn diaphragm or failing seals in the original OMC pump causes hard starting, stalling, or loss of fuel pressure; the Sierra 18-7353 restores factory-level fuel delivery on qualifying 20-30 HP Johnson/Evinrude engines.