Carburetor Rebuild Kit – Fits Johnson/Evinrude 4–15 HP (Replaces 398453)

Carburetor Rebuild Kit – Fits Johnson/Evinrude 4–15 HP (Replaces 398453)

This carburetor rebuild kit is designed for a wide range of Johnson/Evinrude 4–15 HP 2-stroke outboard motors, covering models manufactured between 1974 and 1993. It contains all essential components to restore your carburetor to optimal performance and resolve common fuel delivery issues.

This kit is a direct replacement for Johnson/Evinrude OEM part numbers 439072, 398453, 398452, 391937, 391305, and 386698, as well as aftermarket equivalents from Sierra (18-7223), GLM (40550), Mallory (9-37101), and EMP (1300-01427).

• Includes needles, gaskets, and seals for a complete carburetor overhaul.
• Compatible with standard gasoline fuel types.
• Installation can be completed with basic hand tools by following your engine's service manual.

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 Sierra 18-7106 Needle Packing, High & Low Speed
• 1 x Sierra 18-7093 Needle & Seat Assembly (For 3R Models Only)
• 1 x Sierra 18-7094 Needle & Seat Assembly (For 4RE & 4RL Models Only)
• 1 x Sierra 18-2908 Float Bowl Gasket
• 1 x Float Arm Hinge Pin
• 4 x Gaskets
• 1 x Spring Clip
• 1 x Packing Washer
• 1 x Valve O-Ring
• 1 x Shut-Off Valve Roll Pin

Note: Float is not included and must be purchased separately if needed (Sierra P/N 18-7210).

Installation Guide

1. Safety First: Disconnect the battery and fuel line from the engine to prevent accidents.
2. Remove Carburetor: Carefully detach the carburetor from the engine, taking note of all linkage and hose connections.
3. Disassemble: Working on a clean surface, disassemble the carburetor. Keep parts organized and note the location of each component.
4. Clean Parts: Thoroughly clean all metal components with a quality carburetor cleaner. Do not use cleaner on rubber or plastic parts.
5. Install New Components: Systematically replace the old gaskets, seals, needles, and seats with the new parts from the kit.
6. Reassemble: Carefully reassemble the carburetor, ensuring all parts are correctly seated.
7. Reinstall: Mount the rebuilt carburetor back onto the engine, reconnecting all linkages and fuel lines.
8. Adjust Settings: Start the engine and adjust the idle speed and mixture screws according to your engine's service manual for smooth operation.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my Johnson/Evinrude engine?

A: First, check the "Compatible Engine Models" table to verify that your engine's HP and model year are listed. This kit is designed for 4 HP to 15 HP models manufactured between 1974 and 1993. Cross-referencing your old part number with our list also helps ensure a correct match.

A: No, this rebuild kit does not include the float. If your float is damaged or saturated, it must be purchased separately. The compatible Sierra part number for the float is 18-7210.

A: Common signs include difficulty starting, rough or unstable idling, stalling at low speeds, poor acceleration, black smoke from the exhaust, or visible fuel leaks from the carburetor body.

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.

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.

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.