Carburetor Rebuild Kit – Fits Johnson/Evinrude 4–15 HP (Replaces 439072, 398453)
Carburetor Rebuild Kit – Fits Johnson/Evinrude 4–15 HP (Replaces 439072, 398453) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Carburetor Rebuild Kit – Fits Johnson/Evinrude 4–15 HP (Replaces 43...
Carburetor Rebuild Kit – Fits Johnson/Evinrude 4–15 HP (Replaces 439072, 398453) is backordered and will ship as soon as it is back in stock.
Product Details
This Carburetor Rebuild Kit – Fits Johnson/Evinrude 4–15 HP (Replaces 398453) is designed for Johnson/Evinrude 4–15 HP 2-stroke outboard motors manufactured between 1974 and 1993. It provides the essential components needed to restore carburetor performance, fuel efficiency, and reliability.
It serves as a direct replacement for Johnson/Evinrude part numbers 439072, 398453, 398452, 391937, 391305, and 386698, and interchanges with Sierra 18-7223, GLM 40550, Mallory 9-37101, and EMP 1300-01427.
- Includes multiple needle/seat assemblies and gaskets to cover a variety of carburetor models.
- Designed for straightforward manual installation using basic hand tools.
- All components are compatible with standard marine gasoline.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| 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 your engine model/year in the table below.
This kit fits a wide range of Johnson/Evinrude 2-stroke outboards from 4 HP to 15 HP produced across various years. Please check your specific model and year against the list below.
| 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 |
Technical Specs
- Product Type
- Carburetor Rebuild Kit
- Installation
- Manual with basic hand tools
- Fuel Type
- Gasoline
- Weight
- 22.7 g (0.8 oz)
- Other Technical Attributes
- For use with Johnson/Evinrude outboard carburetors
- Warranty
- Standard manufacturer warranty
What’s in the Box
- 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: The float is not included and must be purchased separately if your original is damaged (fits Sierra P/N 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, taking note of their positions for reassembly.
- Unbolt and gently remove the carburetor from the intake manifold.
- On a clean workbench, disassemble the carburetor, taking care to organize all parts.
- Remove and discard the old gaskets, seals, needle, and seat that will be replaced by the kit.
- Thoroughly clean all metal carburetor components with a quality carburetor cleaner, ensuring all jets and passages are clear.
- Install the new components from the kit, ensuring the needle and seat are correctly matched and seated.
- Reassemble the carburetor using the new float bowl gasket and other seals.
- Reinstall the carburetor on the engine, reconnecting fuel lines and linkages.
- Attach the air silencer, reconnect the battery, and test the engine. Adjust idle speed as necessary.
Troubleshooting & FAQ
How do I confirm this kit fits my specific engine model?
Check the "Engine & Model Compatibility" table on this page. Verify your engine's brand, horsepower, and year range. For complete certainty, cross-reference your carburetor's original part number with the numbers listed in the "Part Number Matrix."
Does this kit include the carburetor float?
p>No, the float is not included in this kit. If your float is damaged or saturated with fuel, it must be purchased separately. This kit is compatible with float Sierra P/N 18-7210.
What are the signs that my carburetor needs to be rebuilt?
Common symptoms include difficulty starting the engine, rough or unstable idling, stalling at low speeds, poor acceleration, black smoke from the exhaust, or visible fuel leaks from the carburetor body.
The kit includes two different needle & seat assemblies. Which one should I use?
This kit is designed to cover multiple carburetor models. The Sierra 18-7093 assembly is intended for "3R" models, while the 18-7094 assembly is for "4RE" and "4RL" models. You must inspect your original carburetor to determine which style you need and use the matching parts from the kit.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
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 tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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