Carburetor Rebuild Kit for Johnson/Evinrude 4–15 HP 2-Stroke Outboards – Replaces 439072 and 398453
Carburetor Rebuild Kit for Johnson/Evinrude 4–15 HP 2-Stroke Outboards – Replaces 439072 and 398453 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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Carburetor Rebuild Kit for Johnson/Evinrude 4–15 HP 2-Stroke Outboa...
Carburetor Rebuild Kit for Johnson/Evinrude 4–15 HP 2-Stroke Outboards – Replaces 439072 and 398453 is backordered and will ship as soon as it is back in stock.
Product Details
This carburetor rebuild kit is designed for selected Johnson/Evinrude 4–15 HP 2-stroke outboard motors manufactured between 1974 and 1993. It provides replacement gaskets, packings, needle-and-seat assemblies, and related hardware to help restore carburetor sealing, fuel control, and reliable operation.
The kit is listed as a replacement for Johnson/Evinrude part numbers 439072, 398453, 398452, 391937, 391305, and 386698. Listed aftermarket cross-references include Sierra 18-7223, GLM 40550, Mallory 9-37101, and EMP 1300-01427. Confirm the part number and carburetor model before ordering.
- Includes multiple needle-and-seat assemblies and gaskets for different carburetor configurations.
- Designed for manual installation with common hand tools.
- Replacement components are intended for use with standard marine gasoline systems.
Part Number Matrix
Use the following references to compare the original and aftermarket numbers associated with this replacement kit.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 439072 |
| Johnson/Evinrude | 398453 |
| Johnson/Evinrude | 398452 |
| Johnson/Evinrude | 391937 |
| Johnson/Evinrude | 391305 |
| Johnson/Evinrude | 386698 |
| Sierra | 18-7223 |
| GLM | 40550 |
| Mallory | 9-37101 |
| EMP | 1300-01427 |
Engine & Model Compatibility
Confirm the engine brand, horsepower, stroke, model, and year before installation. The applications below are the listed compatibility references for this kit.
| Brand | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|
| Johnson/Evinrude | 4 HP | 2-Stroke | 1983–1993 | 398453 |
| Johnson/Evinrude | 4.5 HP | 2-Stroke | 1982–1984, 1987 | 398453 |
| Johnson/Evinrude | 5 HP | 2-Stroke | 1984–1985 | 398453 |
| Johnson/Evinrude | 6 HP | 2-Stroke | 1984–1985 | 398453 |
| Johnson/Evinrude | 7.5 HP | 2-Stroke | 1982–1983 | 398453 |
| Johnson/Evinrude | 8 HP | 2-Stroke | 1984–1985 | 398453 |
| Johnson/Evinrude | 9.9 HP | 2-Stroke | 1974–1988 | 398453 |
| Johnson/Evinrude | 14 HP | 2-Stroke | 1968 | 398453 |
| Johnson/Evinrude | 15 HP | 2-Stroke | 1974–1988 | 398453 |
Application information can vary by exact model and carburetor configuration. Match the original carburetor part number and inspect the existing needle-and-seat arrangement before ordering.
Technical Specs
- Product Type
- Carburetor rebuild kit
- Application
- Selected Johnson/Evinrude 4–15 HP 2-stroke outboard carburetors
- Installation
- Manual installation with basic hand tools
- Fuel Type
- Gasoline
- Weight
- 22.7 g (0.8 oz)
- Warranty
- Standard manufacturer warranty
What’s in the Box
- 1 × Sierra 18-7106 needle packing for high- and low-speed needles
- 1 × Sierra 18-7093 needle-and-seat assembly for 3R models only
- 1 × Sierra 18-7094 needle-and-seat assembly for 4RE and 4RL models only
- 1 × Sierra 18-2908 float bowl gasket
- 1 × float arm hinge pin
- 4 × gaskets
- 1 × spring clip
- 1 × packing washer
- 1 × valve O-ring
- 1 × shut-off valve roll pin
Important: The carburetor float is not included. If the original float is damaged or fuel-saturated, it must be purchased separately; the listed replacement reference is Sierra 18-7210.
Installation Notes
- Disconnect the battery and remove the engine cowling.
- Turn off the fuel supply and carefully disconnect the fuel line from the carburetor.
- Remove the air silencer assembly to access the carburetor.
- Disconnect the throttle and choke linkages, noting their positions for reassembly.
- Unbolt and gently remove the carburetor from the intake manifold.
- Disassemble the carburetor on a clean workbench and organize the removed parts.
- Remove and discard the old gaskets, seals, needle, and seat being replaced.
- Clean the metal carburetor components with a suitable carburetor cleaner, ensuring that jets and passages are clear.
- Install the kit components, matching the needle-and-seat assembly to the carburetor configuration.
- Reassemble the carburetor with the new float bowl gasket and seals.
- Reinstall the carburetor and reconnect the fuel lines and linkages.
- Reattach the air silencer, reconnect the battery, and test the engine. Adjust idle speed according to the engine service procedure if necessary.
Troubleshooting & FAQ
How do I confirm that this kit fits my engine?
Verify the engine brand, horsepower, 2-stroke configuration, year, and carburetor part number against the compatibility table and part-number matrix. Because applications can vary by exact model, compare the original carburetor and needle-and-seat configuration before ordering.
Does this kit include the carburetor float?
No. The float is not included. A damaged or fuel-saturated float must be purchased separately; the listed replacement reference is Sierra 18-7210.
What are common signs that a carburetor needs rebuilding?
Symptoms may include hard starting, rough or unstable idling, low-speed stalling, poor acceleration, black exhaust smoke, or visible fuel leakage around the carburetor.
Which needle-and-seat assembly should I use?
The kit includes two configurations. Use the Sierra 18-7093 assembly for 3R models and the Sierra 18-7094 assembly for 4RE and 4RL models. Inspect the original carburetor and use only the matching component.
Is this an OEM part?
No. This listing is for an aftermarket replacement kit intended to replace the listed original and aftermarket reference numbers.
What are the shipping and return terms?
Typical transit is 5–15 days, with standard shipping generally available at no additional charge. Expedited options, where available, are shown at checkout. Returns are accepted within the applicable standard return window when the item is unused and in its original condition.
What warranty is included?
The kit is covered by the applicable standard manufacturer warranty against manufacturing defects under normal use. Contact support with your order details if an issue occurs.
Safety & Important Information
- Compare the original carburetor, part number, and component configuration before purchase.
- Do not use this kit if the original parts differ from the listed application or configuration.
- This is an aftermarket replacement, not an OEM component.
- Work in a well-ventilated area away from ignition sources and follow the engine manufacturer’s service procedures.
- Professional installation is recommended when you are not familiar with fuel-system service.
About Sea Sierra
- Pro-Grade Standards — Marine replacement parts selected for dependable fit and service in real-world conditions.
- Fast Global Fulfillment — Standard delivery is available to most regions, with typical transit of 5–15 days.
- Manufacturer-Direct Value — Competitive pricing with attention to materials and quality control.
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