Carburetor Rebuild Kit – Fits Johnson/Evinrude 18-75 HP 2-Stroke (Replaces 396701, 398729, 392061)

Product Details

This Carburetor Rebuild Kit – Fits Johnson/Evinrude 18-75 HP 2-Stroke Outboards (Replaces 396701, 398729, 392061) contains everything needed to restore performance to your engine's fuel system. It is designed for a broad range of Johnson/Evinrude 2-stroke and 3-cylinder outboards from 18 HP to 75 HP, manufactured between 1969 and 2005. It is also compatible with select Mercury/Mariner models that use the interchangeable BRP/OMC part 879054A1.

The kit serves as a direct replacement for multiple OEM and aftermarket parts, including Johnson/Evinrude 396701, Sierra 18-7222, and Mallory 9-37107, ensuring a precise fit and function for a complete carburetor overhaul.

• Engineered for direct-replacement installation.
• Designed for use with gasoline-fueled 2-stroke marine engines.
• Includes essential components like the float, needle valve, gaskets, and clips for a full service.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This kit fits a wide variety of 2-cylinder and 3-cylinder Johnson/Evinrude outboards produced over three decades.

Compatibility with Mercury/Mariner models is based on the cross-reference of BRP/OMC part 879054A1. Please verify this part number against your service manual.

Technical Specs

Product Type

Carburetor Repair/Rebuild Kit

Installation

Direct replacement

Fuel Type

Gasoline

Weight

100g (3.5 oz) approximately

Package Contents

Needle valve & seat assembly, float, gaskets, O-rings, clips, screws

What’s in the Box

• 1 x Gasket, Bowl
• 1 x Gasket, Cover
• 1 x Washer, Screw Plug
• 1 x Washer, Idle Passage
• 1 x Hinge Pin, Float
• 1 x Float Valve & Seat Assembly
• 1 x Washer
• 1 x Spring Clip
• 1 x Float Assembly
• 1 x Additional Gasket

Installation Notes

1. Disconnect the negative battery cable and shut off the fuel supply.
2. Carefully remove the air silencer/cleaner cover to access the carburetor.
3. Label and disconnect all fuel lines, vacuum hoses, and linkages attached to the carburetor. Take photos for reference.
4. Remove the mounting bolts or nuts and carefully lift the carburetor off the intake manifold.
5. Working in a clean, well-ventilated area, disassemble the carburetor, organizing all parts.
6. Thoroughly clean all non-replaceable metal components with a quality carburetor cleaner spray. Do not use cleaner on rubber or plastic parts.
7. Replace the old gaskets, seals, needle valve, and float with the new components from this kit.
8. Reassemble the carburetor, ensuring the float level is set to your engine's specifications (refer to a service manual).
9. Reinstall the rebuilt carburetor onto the engine, reconnecting all lines and linkages.
10. Turn the fuel supply back on, reconnect the battery, and start the engine. Check for leaks and adjust idle settings as needed.

Troubleshooting & FAQ

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 rigorously tested for real-world reliability and performance.
• Fast Global Fulfillment — With free standard delivery to most regions, you can expect your parts to arrive in just 5–15 days.
• Manufacturer-Direct Value — We offer fair, direct-from-manufacturer pricing without ever compromising on materials, quality control, or durability.