Powerhead Gasket Set for Johnson/Evinrude 18–35 HP 2-Stroke Outboards — Replaces 0392567, 389206, 392615 and 433941
Powerhead Gasket Set for Johnson/Evinrude 18–35 HP 2-Stroke Outboards — Replaces 0392567, 389206, 392615 and 433941 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Powerhead Gasket Set for Johnson/Evinrude 18–35 HP 2-Stroke Outboar...
Powerhead Gasket Set for Johnson/Evinrude 18–35 HP 2-Stroke Outboards — Replaces 0392567, 389206, 392615 and 433941 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Powerhead Gasket Set is intended for selected Johnson/Evinrude 18–35 HP 2-stroke outboard applications. It is designed to help reseal the cylinder head, powerhead base, exhaust, fuel-pump, bypass, leaf-plate and related powerhead components during engine service.
The set is listed as a replacement for Johnson/Evinrude OEM part numbers 0392567, 389206, 392615 and 433941. It is also commonly cross-referenced with Sierra 18-4307, GLM 39420 and Mallory Marine 9-64114. Cross-reference numbers are provided for identification; always compare the engine model, year and original gasket configuration before ordering.
- Application-specific installation; professional service or the correct engine service manual is recommended.
- For gasoline-fueled 2-stroke marine outboards.
- Includes the gasket pieces listed in the package-contents section below.
Part Number Matrix
Use this matrix to compare the listed OEM and aftermarket references. A number match alone does not confirm every model or serial-number application.
| Brand | Part Number |
|---|---|
| Johnson/Evinrude (OEM) | 0392567, 389206, 392615, 433941 |
| Sierra | 18-4307 |
| GLM | 39420 |
| Mallory Marine | 9-64114 |
Engine & Model Compatibility
The listed application range covers selected Johnson/Evinrude 18–35 HP 2-stroke outboards, including certain JET and Crossflow configurations. Confirm the exact model code, production year, serial range and gasket layout before purchase.
| Brand | Model or Application | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Johnson/Evinrude | 18 HP JET | 18 | 2-Stroke | 1995–1998 | 0392567 / 389206 / 392615 / 433941 | Verify exact model and serial range. |
| Johnson/Evinrude | 20 HP | 20 | 2-Stroke | 1985–1999 | 0392567 / 389206 / 392615 / 433941 | Verify exact model and serial range. |
| Johnson/Evinrude | 25 HP | 25 | 2-Stroke | 1979–2005 | 0392567 / 389206 / 392615 / 433941 | Verify exact model and serial range. |
| Johnson/Evinrude | 28 HP | 28 | 2-Stroke | 1986–1996 | 0392567 / 389206 / 392615 / 433941 | Verify exact model and serial range. |
| Johnson/Evinrude | 30 HP | 30 | 2-Stroke | 1984–2003 | 0392567 / 389206 / 392615 / 433941 | Verify exact model and serial range. |
| Johnson/Evinrude | 35 HP | 35 | 2-Stroke | 1979–1988 | 0392567 / 389206 / 392615 / 433941 | Crossflow applications; verify exact model and serial range. |
| Johnson/Evinrude | E35ECND | 35 | 2-Stroke | 1982 | 0392567 / 389206 / 392615 / 433941 | Cylinder and crankcase application reference. |
| Johnson/Evinrude | E35ELCND | 35 | 2-Stroke | 1982 | 0392567 / 389206 / 392615 / 433941 | Cylinder and crankcase application reference. |
| Johnson/Evinrude | E35RCND | 35 | 2-Stroke | 1982 | 0392567 / 389206 / 392615 / 433941 | Cylinder and crankcase application reference. |
| Johnson/Evinrude | E35RLCND | 35 | 2-Stroke | 1982 | 0392567 / 389206 / 392615 / 433941 | Cylinder and crankcase application reference. |
| Johnson/Evinrude | E35TELCNB | 35 | 2-Stroke | 1982 | 0392567 / 389206 / 392615 / 433941 | Cylinder and crankcase application reference. |
| Johnson/Evinrude | Various 25–35 HP models | 25–35 | 2-Stroke | 1983–1988 | 0392567 / 389206 / 392615 / 433941 | May include E35ECTS, E35ELCTS, E35RCTS, E35RLCTS, E35TELCTS, E30ECRR, E30ELCRR, E35ECRR, E35ELCRR, E35RCRR, E35RLCRR and E35TELCRR; verify the exact model code. |
Technical Specs
- Product Type
- Powerhead gasket set
- Application
- Selected Johnson/Evinrude 18–35 HP 2-stroke outboards
- Fuel Type
- Gasoline
- Installation
- Engine-specific
- Service Coverage
- Gaskets for listed cylinder-head, powerhead-base, exhaust, fuel-pump, bypass, leaf-plate and related components
What’s in the Box
- 1 × Exhaust manifold gasket — cross-referenced with Sierra 18-0106
- 1 × Carburetor gasket — cross-referenced with Sierra 18-0118
- 1 × Inner exhaust cover gasket — cross-referenced with Sierra 18-0126
- 1 × Fuel pump gasket — cross-referenced with Sierra 18-0850
- 1 × Bypass gasket — cross-referenced with Sierra 18-0971
- 1 × Leafplate gasket — cross-referenced with Sierra 18-0981
- 1 × Powerhead base gasket — cross-referenced with Sierra 18-2852
- 1 × Leaf plate gasket — cross-referenced with Sierra 18-2862
- 1 × Head gasket — cross-referenced with Sierra 18-3803
- 1 × Water cover gasket — cross-referenced with Sierra 18-3899
Package contents are limited to the gasket pieces listed above. Pistons, rings, bearings, seals, fasteners and other rebuild components are not included.
Installation Notes
- Disconnect the battery and fuel lines where applicable, and make sure the engine is cool before beginning work.
- Disassemble only the components needed to access the powerhead and keep all hardware organized.
- Remove old gasket material, sealant and debris from every mating surface. Surfaces must be clean and undamaged for proper sealing.
- Compare each removed gasket with the corresponding replacement gasket and confirm orientation before installation.
- Install the gaskets according to the engine service manual. Do not add sealant unless the manual specifically requires it.
- Reassemble the engine using the manufacturer’s specified torque values and tightening sequence.
- Reconnect the fuel system and battery, inspect for leaks and perform the appropriate starting and cooling-system checks before returning the engine to service.
Troubleshooting & FAQ
How do I know if this gasket set fits my engine?
Confirm the Johnson/Evinrude model code, horsepower, year and serial range, then compare the original gasket layout and part number with the compatibility and part-number sections above. The 18–35 HP range is not a substitute for checking the exact engine configuration.
What are common signs of a failed powerhead gasket?
Possible symptoms include loss of compression, water intrusion, overheating, or visible fluid leakage near a gasket joint. These symptoms can have several causes, so inspect the engine and follow the applicable service-manual tests before replacing parts.
Do I need sealant with these gaskets?
Many engine gaskets are installed dry, but the correct procedure depends on the gasket location and engine model. Follow the official service-manual instructions; do not apply sealant where it could obstruct passages or alter gasket thickness.
Is this a complete kit for a powerhead rebuild?
This is a gasket set for resealing the listed powerhead-related components. It is not a complete mechanical rebuild kit and does not include pistons, rings, bearings, oil seals or other internal parts.
Is this an OEM product?
No. This is an aftermarket replacement gasket set. The listed OEM and aftermarket numbers are provided as identification and cross-reference information.
What should I do if my original gasket looks different?
Do not force a gasket to fit. Stop installation and compare the engine model, year, serial range, original part number and gasket shape with the service information for your engine.
Safety & Important Info
- Verify the exact engine model, year, serial range and original part number before ordering.
- Compare the gasket shapes and openings with the original parts before installation.
- This is an aftermarket replacement part, not an OEM component.
- Use appropriate safety equipment and follow the engine manufacturer’s service procedures. Professional installation is recommended for powerhead work.
About Sea Sierra
- Marine Replacement Parts — We provide aftermarket components for marine maintenance and repair applications.
- Application-Focused Information — Product references and fitment guidance are provided to help customers compare parts before ordering.
- Service Support — For installation, fitment or ordering questions, consult the applicable engine service information or contact support before purchase.
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