Boot Protector / Shift Rod Boot for Mercury 25–50 HP Outboards – Replaces 822158
Boot Protector / Shift Rod Boot for Mercury 25–50 HP Outboards – Replaces 822158 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
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Boot Protector / Shift Rod Boot for Mercury 25–50 HP Outboards – Re...
Boot Protector / Shift Rod Boot for Mercury 25–50 HP Outboards – Replaces 822158 is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket boot protector / shift rod boot is a replacement component for selected Mercury 25–50 HP outboard applications. It fits over the shift-rod area to help shield the opening from water and debris when correctly installed. The listed replacement reference is Mercury 822158.
Because Mercury fitment can vary by model, year, stroke, configuration, and serial range, compare your original boot and confirm the complete engine details before ordering.
- Replacement shift rod boot for selected Mercury outboard applications.
- Designed as a direct replacement for the original boot where the listed reference and application match.
- Press-fit installation; clean the mounting area and make sure the boot is fully seated.
- Package includes one shift boot.
Part Number Matrix
These references are provided for identification and cross-reference purposes. Confirm the application before purchase.
| Brand | Part Number |
|---|---|
| Mercury | 822158 |
| SEI Marine | 98-263-23 |
| GLM | 89083 |
| UANOFCN | 822158 |
Engine & Model Compatibility
This replacement is listed for selected Mercury 25–50 HP outboards, including the application groups shown below. The table is a general application guide, not confirmation for every serial number or configuration.
| Brand | Application Group | Rated HP | Stroke / Configuration | Reference | Fitment Note |
|---|---|---|---|---|---|
| Mercury | 25 HP outboard | 25 | Verify exact stroke and model | 822158 | Confirm model year and serial range. |
| Mercury | 30 HP outboard | 30 | 2-Stroke or 4-Stroke applications may vary | 822158 | Confirm engine configuration before ordering. |
| Mercury | 40 HP outboard | 40 | 2-Stroke or 4-Stroke applications may vary | 822158 | Confirm model, year, and serial range. |
| Mercury | 45 HP outboard | 45 | Verify exact model and configuration | 822158 | Do not rely on horsepower alone. |
| Mercury | 50 HP outboard | 50 | 2-Stroke or 4-Stroke applications may vary | 822158 | Includes no automatic confirmation for Bigfoot or other special configurations. |
Technical Specs
- Product Type
- Boot protector / shift rod boot
- Application
- Selected Mercury 25–50 HP outboard applications
- Replacement Reference
- Mercury 822158
- Installation
- Press-fit replacement
- Material
- Rubber compound
- Color
- Black
- Package Quantity
- 1 boot
- Fitment Verification
- Match the original part and verify the complete engine model, year, configuration, and serial range.
What's in the Box
- 1 x Shift rod boot
Installation Notes
This is a replacement boot for the original shift-rod boot. Before installation, inspect the mounting surface and shift-rod area and remove dirt, corrosion, or debris. Position the boot correctly and press it fully into place so it seats evenly. After installation, check that the boot is secure and that there are no visible gaps or folds that could compromise the seal.
Follow the service instructions for your specific Mercury engine. If access to the shift-rod boot requires lower-unit removal or adjustment, use a qualified marine technician.
Maintenance & Inspection
Inspect the boot during routine lower-unit service and whenever the lower unit is removed. Replace it if it is cracked, torn, hardened, loose, or otherwise unable to maintain a proper seal. A damaged boot can allow water and debris into the surrounding area.
Troubleshooting & FAQ
How do I know if this boot fits my engine?
Confirm that your Mercury outboard is within the listed 25–50 HP application range, then compare the original boot and the 822158 reference. Verify the exact model, year, stroke, configuration, and serial range because horsepower alone does not establish fitment.
What are the signs that the original boot needs replacement?
Common signs include cracks, tears, brittleness, deformation, looseness, or visible gaps around the shift rod or mounting area.
Is this an OEM Mercury part?
No. This is an aftermarket replacement for selected applications using Mercury 822158 as the replacement reference.
How many boots are included?
One shift rod boot is included.
Does this fit every Mercury 25–50 HP outboard?
No. The 25–50 HP range is an application guide only. Model, year, stroke, configuration, and serial-number differences may affect fitment. Compare the original part and verify your engine details before ordering.
Can I install it without special tools?
The boot is intended as a press-fit replacement, but access requirements vary by engine. If installation requires lower-unit disassembly or shift adjustment, professional service is recommended.
What is the function of the boot?
The boot helps shield the shift-rod opening from water and debris when properly fitted and sealed.
Safety & Important Information
- Verify the original part, dimensions, mounting shape, engine model, year, configuration, and serial range before purchase.
- Do not install the part if it differs from the original boot or does not seat correctly.
- This is an aftermarket replacement, not an OEM Mercury component.
- Disconnect the appropriate systems and follow the engine manufacturer's service procedures before beginning work.
- Professional installation is recommended when lower-unit removal or shift adjustment is required.
About Sea Sierra
- Marine Replacement Parts — Practical replacement components for maintenance and repair applications.
- Application-Focused Listings — Use the listed reference and engine details to help verify compatibility before ordering.
- Customer Support — Contact support with your engine model and serial information if you need help checking an application.
Payment & Security
Payment methods
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