Carburetor Repair Kit for Johnson/Evinrude 2-Stroke Outboards, 6–20 HP — Replaces 439073 and 431897
Carburetor Repair Kit for Johnson/Evinrude 2-Stroke Outboards, 6–20 HP — Replaces 439073 and 431897 is backordered and will ship as soon as it is back in stock.
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Carburetor Repair Kit for Johnson/Evinrude 2-Stroke Outboards, 6–20...
Carburetor Repair Kit for Johnson/Evinrude 2-Stroke Outboards, 6–20 HP — Replaces 439073 and 431897 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket carburetor repair kit is designed for selected Johnson/Evinrude 2-stroke outboard carburetors in the 6–20 HP range. It is intended to replace worn gaskets and the carburetor needle-and-seat assembly during routine fuel-system service. The catalog relationship identifies this application as replacing Johnson/Evinrude O.E. numbers 439073 and 431897.
Use the exact engine model, year, carburetor configuration, and original part number to confirm fitment before ordering. Similar horsepower ratings can use different carburetor components, and this kit should not be treated as universal for every Johnson/Evinrude engine.
- Aftermarket carburetor service kit for selected Johnson/Evinrude 2-stroke outboards.
- Replaces Johnson/Evinrude O.E. numbers 439073 and 431897.
- Includes a needle-and-seat assembly and gaskets for carburetor service.
- Helps address fuel leakage, poor starting, unstable idle, and fuel-delivery problems caused by worn or deteriorated service parts.
Part Number Matrix
The following references identify the same catalog application or replacement family. They are not a guarantee of fit without checking the engine model and carburetor configuration.
| Brand or source | Reference | Use |
|---|---|---|
| Johnson/Evinrude | 439073 | O.E. replacement reference |
| Johnson/Evinrude | 431897 | O.E. replacement reference |
| Sierra | 18-7219 | Aftermarket carburetor kit reference listed for O.E. numbers 439073 and 431897 |
Engine & Model Compatibility
This kit is listed for selected Johnson and Evinrude 2-stroke outboards covering the following rated horsepower and model-year groups. Always compare the complete model code and the original carburetor parts before installation.
| Brand | Rated HP | Stroke | Application years represented | Representative model families | O.E. reference |
|---|---|---|---|---|---|
| Johnson | 6 | 2-Stroke | 1986–1997, with listed year gaps | J6R and J6S model families, including short-, long-, and extra-long-shaft variants where applicable | 439073 |
| Johnson | 8 | 2-Stroke | 1986–1997, with listed year gaps | J8R and J8S model families, including short-, long-, and extra-long-shaft variants where applicable | 439073 |
| Johnson | 9.9 | 2-Stroke | 1987–1998 | J10E, J10R, J10S, and related long- and short-shaft model variants | 439073 |
| Johnson | 15 | 2-Stroke | 1987–2001 | J15E, J15R, and later J15W model families, including listed shaft variants | 439073 |
| Johnson | 20 | 2-Stroke | 1991–1997 | J20CR and J20E model families, including listed shaft variants | 439073 |
| Evinrude | 6 | 2-Stroke | 1986–1997, with listed year gaps | E6R and E6S model families, including short-, long-, and extra-long-shaft variants where applicable | 439073 |
| Evinrude | 8 | 2-Stroke | 1986–1997, with listed year gaps | E8R and E8S model families, including short-, long-, and extra-long-shaft variants where applicable | 439073 |
| Evinrude | 9.9 | 2-Stroke | 1987–1998 | E10E, E10R, E10S, and related long- and short-shaft model variants | 439073 |
| Evinrude | 15 | 2-Stroke | 1987–2001 | E15E, E15R, and later E15W model families, including listed shaft variants | 439073 |
| Evinrude | 20 | 2-Stroke | 1991–1997 | E20CR and E20E model families, including listed shaft variants | 439073 |
Fitment note: The model-year groups above summarize the supplied application list. Model suffixes identify differences such as shaft length, controls, and configuration; confirm your complete model number and compare the removed gasket and needle/seat assembly before ordering.
Technical Specifications
- Product Type
- Carburetor repair and rebuild kit
- Application
- Selected Johnson/Evinrude 2-stroke outboard carburetors
- Rated horsepower range
- 6–20 HP applications as listed above
- Fuel type
- Gasoline
- Replacement O.E. numbers
- 439073 and 431897
- Aftermarket reference
- Sierra 18-7219
- Installation
- Carburetor disassembly and reassembly required
- Weight
- 0.08 lb (0.036 kg), as supplied in the original listing
What's in the Box
- 1 x carburetor needle-and-seat assembly
- 1 x float-bowl gasket
- Additional gaskets, O-rings, and seals for the applicable carburetor service
Exact gasket quantity and shape can vary by kit configuration. Compare the supplied parts with the original carburetor before beginning work.
Installation Notes
- Stop the engine, disconnect the battery where fitted, and shut off the fuel supply.
- Remove the engine cowling and air silencer as necessary to access the carburetor.
- Label or photograph the fuel lines and throttle/choke linkages before disconnecting them.
- Remove the carburetor from the intake and place it on a clean work surface.
- Disassemble the carburetor carefully and retain the original parts for comparison.
- Remove old gaskets and the used needle-and-seat assembly. Clean the metal passages with a suitable carburetor cleaner.
- Install the replacement needle and seat, float-bowl gasket, and other applicable seals from the kit.
- Reassemble the carburetor and set the float according to the engine service manual.
- Reinstall the carburetor, reconnect all linkages and fuel lines, and refit the air silencer and cowling.
- Restore the fuel supply, start the engine in a safe area, and check carefully for fuel leaks and correct idle operation.
Troubleshooting & FAQ
How do I know if the carburetor needs service?
Common symptoms include hard starting, rough idle, stalling, hesitation, fuel leakage, or poor response to throttle. These symptoms can also result from ignition, fuel-supply, or compression problems, so inspect the complete engine system before rebuilding the carburetor.
Will this kit fit an engine not listed above?
Do not assume fitment based only on horsepower. Verify the complete Johnson/Evinrude model number, model year, carburetor configuration, and original replacement number. Different carburetors may use different gasket profiles or needle-and-seat assemblies.
Is float-height adjustment required?
Yes. Whenever the needle-and-seat assembly or float is serviced, check the float setting against the engine's service manual. Incorrect float height can cause flooding, fuel leakage, or fuel starvation.
Do I need special tools?
Basic hand tools, a clean work surface, and suitable carburetor cleaner are normally required. A small measuring tool or float gauge may be needed for the adjustment specified in the service manual.
Is this an OEM part?
No. This is an aftermarket replacement carburetor service kit. The listed O.E. numbers are provided for identification and fitment comparison only.
How often should the carburetor be rebuilt?
There is no universal service interval. Service needs depend on fuel quality, storage duration, operating conditions, and whether fuel is left untreated in the carburetor. Inspect the fuel system whenever starting or running problems develop.
Safety & Important Information
- Confirm the exact model, year, stroke, horsepower, shaft configuration, and original carburetor parts before ordering.
- Work in a well-ventilated area away from sparks and open flames. Gasoline and carburetor cleaner are flammable.
- Do not reuse damaged gaskets or seals, and check for fuel leaks before operating the engine.
- Professional installation is recommended if you are unfamiliar with carburetor service.
- This product is an aftermarket replacement and is not manufactured by Johnson or Evinrude.
About Sea Sierra
- We supply aftermarket marine replacement parts for maintenance and repair applications.
- Product information is organized around manufacturer references and application details to support fitment checks.
- Compare the original component and all listed application conditions before installation.
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