Carburetor Repair Kit – Fits Johnson Evinrude Outboards 28-40 HP (Replaces 439074)
Carburetor Repair Kit – Fits Johnson Evinrude Outboards 28-40 HP (Replaces 439074) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This Carburetor Repair Kit fits Johnson Evinrude Outboards 28-40 HP, specifically designed for 2-stroke models manufactured between 1959 and 1971. It provides all the essential components needed to rebuild a single carburetor, restoring fuel efficiency and engine performance.
This kit serves as a direct interchange for Johnson/Evinrude part numbers 439074 and 0439074, as well as Sierra 18-7051.
- Installation: Mounts directly in place of the original components.
- Core Components: Includes the float, needle, and seat for a complete overhaul.
- Fuel Type: Designed for use with gasoline.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude | 439074 |
| Johnson/Evinrude | 0439074 |
| Sierra | 18-7051 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This kit is designed for a range of Johnson and Evinrude outboards.
| Brand | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|
| Johnson/Evinrude | 28 HP | 2-Stroke | 1962–1964 | 439074 |
| Johnson/Evinrude | 30 HP | 2-Stroke | 1965–1970 | 439074 |
| Johnson/Evinrude | 35 HP | 2-Stroke | 1959 | 439074 |
| Johnson/Evinrude | 40 HP | 2-Stroke | 1960–1963, 1971 | 439074 |
Technical Specs
- Product Type
- Carburetor Repair Kit with Float
- Installation
- Direct Fit
- Fuel Type
- Gasoline
- Dimensions
- 7.13 in x 6.0 in x 1.0 in
- Warranty
- Varies by manufacturer
- Included Components
- Includes all necessary gaskets, jets, needle and seat, and float
What’s in the Box
- 1 x Carburetor Repair Kit (Replaces 439074) including:
- Gaskets
- Jets
- Needle and Seat Assembly
- Float
Installation Notes
- Disconnect the battery and shut off the fuel supply.
- Remove the engine cover and airbox to access the carburetor.
- Carefully detach any fuel lines, throttle cables, and choke linkages connected to the carburetor, noting their orientation.
- Unbolt and remove the carburetor from the intake manifold.
- Disassemble the carburetor on a clean workbench, paying attention to the location of all small parts.
- Clean all metal components with a high-quality carburetor cleaner. Do not use cleaner on rubber or plastic parts.
- Replace the old gaskets, seals, needle, seat, and float with the new components from the kit.
- Reassemble the carburetor, ensuring all parts are correctly seated and screws are tightened to the proper torque.
- Reinstall the carburetor onto the engine, reattaching all lines and linkages.
- Turn on the fuel supply, prime the system, and check thoroughly for any fuel leaks before starting the engine.
Troubleshooting & FAQ
How do I know if this carburetor kit fits my outboard?
This kit is designed for specific Johnson/Evinrude 28 HP to 40 HP, 2-stroke outboards from 1959–1971. Always check your engine's model and year against the compatibility chart and verify your existing carburetor part number matches a number in the Part Number Matrix to ensure a perfect fit.
Does this repair kit include a new float?
Yes, this is a comprehensive kit that includes a new float, which is essential for regulating fuel levels and often a key point of failure in older carburetors.
What are the common signs my carburetor needs rebuilding?
Symptoms indicating a rebuild is needed include difficulty starting the engine, rough or unstable idling, stalling at low speeds, fuel leaking from the carburetor body, bogging down during acceleration, or a noticeable decrease in fuel efficiency.
Is any special tuning required after installation?
After rebuilding and reinstalling the carburetor, you will likely need to make minor adjustments to the idle speed and air/fuel mixture screws to match your engine's factory specifications. Always refer to your outboard's service manual for the correct tuning procedure.
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.
Payment & Security
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