Gearcase Seal Kit – Fits Evinrude/Johnson 85-225 HP V4/V6 (Replaces OMC 5006373)
Gearcase Seal Kit – Fits Evinrude/Johnson 85-225 HP V4/V6 (Replaces OMC 5006373) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Gearcase Seal Kit – Fits Evinrude/Johnson 85-225 HP V4/V6 (Replaces...
Product Details
This aftermarket Gearcase Seal Kit provides all necessary components to reseal the lower unit on Evinrude/Johnson 85-225 HP, V4 & V6 outboard engines manufactured from 1985 to 2005.
It serves as a direct replacement for multiple OEM and aftermarket part numbers, including OMC 5006373, Sierra 18-2623, and GLM 87600.
- Installs in the lower unit/gearcase to prevent water intrusion and oil leaks.
- Complete kit includes all seals, o-rings, gaskets, and drain screws for a full service.
- Engineered to meet or exceed original factory specifications for fit and function.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| OMC | 5006373 |
| OMC | 5000411 |
| OMC | 0439141 |
| OMC | 0396354 |
| OMC | 0438278 |
| OMC | 0437753 |
| OMC | 0437752 |
| OMC | 0434516 |
| OMC | 0396353 |
| OMC | 0777521 |
| Sierra | 18-2623 |
| GLM | 87600 |
| SEI Marine | 95-304-11K |
| Mallory | 9-74106 |
| EMP | 26-03951 |
| Red Rhino | JE-312 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Evinrude: This kit fits a wide range of V4 and V6 models from 85 HP to 225 HP. Please check your specific model code against the list.
For Johnson: This kit is compatible with corresponding Johnson V4 and V6 models. Verify your model number to ensure proper fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Evinrude | E85TTLEIE, E85TTLEND, E85TTLETS, E85TTLERC, E85TTLEOR | 85 | 2-Stroke | 1990–1995 | 5006373 | |
| Evinrude | E90ELEOC, E90EXEOC, E90MLEOR, E90SLEOC, E90TLEOR | 90 | 2-Stroke | 1991–1995 | 5006373 | |
| Evinrude | BE90ELEDR, BE90SLEDR, BE90TLEDA, E90ELEDR, E90SLEDR, E90TLEDA, HE90MLEDA, HE90TXADA | 90 | 2-Stroke | 1991–1995 | 5006373 | |
| Evinrude | BE90ELEUA, BE90ELEUC, BE90SLEUA, BE90SLEUC, BE90SXEUA, BE90SXEUC | 90 | 2-Stroke | 1992–1995 | 5006373 | |
| Evinrude | BE90SLECM, BE90SXECM, E90ELECM, E90FSLECS, E90FTLECS, E90SLECM, E90TSLECM | 90 | 2-Stroke | 1992–1998 | 5006373 | |
| Evinrude | E90FPLEEC, E90FPLEEN | 90 | 2-Stroke | 1999–2000 | 5006373 | |
| Evinrude | E90FPLSSH, RE90FPLSSH | 90 | 2-Stroke | 2000–2001 | 5006373 | |
| Evinrude | E90FPLSIF, E90FVLSIF, RE90FPLSIF | 90 | 2-Stroke | 2001–2002 | 5006373 | |
| Evinrude | E90FPLSNF | 90 | 2-Stroke | 2002–2003 | 5006373 | |
| Evinrude | E90FPLSTB, E90FSLSTB | 90 | 2-Stroke | 2003–2004 | 5006373 | |
| Evinrude | E90DPLSRC, E90DPXSRC, E90DSLSRC | 90 | 2-Stroke | 2004–2005 | 5006373 | |
| Evinrude | E90DPLSOR, E90DPXSOR, E90DSLSOC, E90WDPLSOS | 90 | 2-Stroke | 2005 | 5006373 | |
| Evinrude | E115ELEOC, E115GLEOC, E115MLEOR, E115SLEOC, E115SXEOC, E115TLEOR, E115TXAOR | 115 | 2-Stroke | 1991–1995 | 5006373 | |
| Evinrude | BE115ELEDR, BE115GLEDR, BE115SXEDR, BE115TLEDA, E115ELEDR, E115GLEDR, E115SLEDR, E115SXEDR, E115TLEDA, E115TXADA, HE115SLEDR, HE115TXADA | 115 | 2-Stroke | 1991–1995 | 5006373 | |
| Evinrude | BE115ELEUA, BE115ELEUC, BE115GLEUA, BE115GLEUC, BE115SXEUA, BE115SXEUC, E115ELEUA, E115ELEUC, E115GLEUA, E115GLEUC, E115SLEUA, E115SLEUC, E115SXEUA, E115SXEUC, E115TSLEUA, E115TSXEUA, HE115SLEUA, HE115SLEUC, L115GLEUC, L115GLEUR, XE115HLEUA, XE115HXEUA | 115 | 2-Stroke | 1992–1995 | 5006373 | |
| Evinrude | BE115GLECM, BE115SXECM, E115ELECM, E115FSLECS, E115FSXECS, E115FTLECS, E115GLECM, E115SLECM, E115SXECM, E115TSLECM, E115TSXECM, HE115SLECM, L115GLECA, XE115HLECM, XE115HXECM | 115 | 2-Stroke | 1992–1998 | 5006373 | |
| Evinrude | E115FPLEEC, E115FPLEEN, E115FPXEEC, E115FPXEEN, E115FSLEEC, E115FSLEEN | 115 | 2-Stroke | 1999–2000 | 5006373 | |
| Evinrude | E115FPXSSH, E115FPXSSR, E115FSLSSH, E115FSLSSR, RE115FLSSSH, RE115FLSSSR, RE115FPLSSH, RE115FPLSSR, RE115FSSSH, RE115FSSSR, RE115FXSSH, RE115FXSSR | 115 | 2-Stroke | 2000–2001 | 5006373 | |
| Evinrude | E115FPLSIF, E115FPXSIF, E115FSLSIF, RE115FLSIF, RE115FSSIF, RE115FXSIF | 115 | 2-Stroke | 2001–2002 | 5006373 | |
| Evinrude | E115FPLSNF, E115FPXSNF | 115 | 2-Stroke | 2002–2003 | 5006373 | |
| Evinrude | E115FPLSTB, E115FPXSTB, E115FSLSTB | 115 | 2-Stroke | 2003–2004 | 5006373 | |
| Evinrude | E115FPLSRE, E115FSLSRE | 115 | 2-Stroke | 2004–2005 | 5006373 | |
| ... and many other Evinrude/Johnson models from 1985-2005. The list is truncated for brevity. | ||||||
Technical Specs
- Product Type
- Gearcase Seal Kit
- Installation
- Lower Unit/Gearcase
- Dimensions
- 8.0" x 10.88" x 0.75"
- Kit Contents
- Complete lower unit seal kit with all necessary o-rings, seals, gaskets, and drain screws
What’s in the Box
- Shift Housing Gasket (Replaces OMC 0338552/0338551)
- All necessary seals and O-rings for the lower unit
- Magnetic drain screw
- Impeller gasket
- Associated washers
Installation Notes
- Always disconnect the battery before starting work.
- Drain the gearcase lubricant completely into an approved container.
- Carefully remove the lower unit assembly from the outboard engine.
- Disassemble the gearcase, taking photos to document the order of components.
- Remove all old seals, o-rings, and gaskets. Use appropriate tools to avoid scratching sealing surfaces.
- Thoroughly clean all component and housing surfaces of old sealant and debris.
- Lightly lubricate new seals and o-rings with marine grease before installation.
- Install the new components from the kit, ensuring correct orientation and seating.
- Reassemble the gearcase, torquing bolts to the manufacturer's specification.
- Reinstall the lower unit onto the engine.
- Refill the gearcase with the correct type and amount of marine gear lubricant.
- After running the engine briefly, check for any oil or water leaks around the sealed areas.
Troubleshooting & FAQ
How do I know if this gearcase seal kit will fit my engine?
The most reliable method is to match your engine's model number and year to the compatibility chart. You can also cross-reference your existing part number with the numbers in our Part Number Matrix.
What are the common signs of a failing gearcase seal?
Key indicators include milky or water-contaminated gear oil, visible oil leaks from the lower unit (especially around the propeller shaft), or a burnt smell from the gearcase due to lubrication failure.
Is this a complete kit for the entire lower unit?
Yes, this is a comprehensive kit designed to replace all the primary seals, gaskets, and o-rings in the gearcase/lower unit for the listed models.
How often should I replace my gearcase seals?
There's no fixed interval, but it's good practice to inspect for leaks annually. Seals should be replaced whenever the lower unit is serviced, if you find water in the gear oil, or every 3-5 years for preventative maintenance in harsh conditions.
Do I need any special tools for installation?
While basic hand tools are sufficient for some steps, a seal puller, a bearing/seal driver set, and a torque wrench are highly recommended to prevent damage to components and ensure a proper seal.
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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