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Boot Protector 822158 for Mercury 25-50HP Outboard – Fits Mercury 25-50HP 4-Stroke (Replaces 822158)
- $21.55
- $21.55
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Aftermarket Boot Protector 822158 for Mercury 25-50HP Outboard
Thisshift boot protector is designed for a precise fit on Mercury 25-50HP outboard engines using 4-stroke technology, including 2-cylinder and 3-cylinder configurations manufactured from 1995-2025. It serves as a direct replacement for several OEM andpart numbers, ensuring broad compatibility.
Constructed from a durable, marine-grade rubber compound, this boot is specifically engineered to resist saltwater, UV degradation, and oil exposure. The press-fit installation provides a secure seal to protect the shift rod mechanism from water ingress and environmental contaminants.
- Direct Replacement: Replaces Mercury 822158, SEI Marine 98-263-23, and GLM 89083.
- Durable Material: Made from a saltwater, UV, and oil-resistant rubber compound.
- Simple Installation: Designed for a direct press-fit installation without special tools.
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM andbrands.
| Brand | Part Number |
|---|---|
| Mercury | 822158 |
| SEI Marine | 98-263-23 |
| GLM | 89083 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Mercury owners, here’s a guide to help you identify your engine’s serial/model: Mercury Serial Number Guide. You can also review exploded diagrams to verify part numbers: Mercury Parts Diagrams & Catalog.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury | 25 HP | 25 | 4-Stroke | 1997-2025 | 822158 | All serial ranges |
| Mercury | 30 HP (2 CYL) | 30 | 2-Stroke | 1995-2025 | 822158 | Standard and EFI |
| Mercury | 30 HP (3 CYL) | 30 | 4-Stroke | 1997-2025 | 822158 | Carb, EFI, and JET |
| Mercury | 40 HP (2 CYL) | 40 | 2-Stroke | 1995-2025 | 822158 | Standard configuration |
| Mercury | 40 HP (3 CYL) | 40 | 4-Stroke | 1997-2025 | 822158 | Carb and EFI versions |
| Mercury | 40 HP Italy | 40 | 4-Stroke | 2000-2015 | 822158 | European market |
| Mercury | 45 HP Bodensee | 45 | 4-Stroke | 2000-2015 | 822158 | Italy manufactured |
| Mercury | 50 HP (3 CYL) | 50 | 2-Stroke | 1995-2025 | 822158 | Standard configuration |
| Mercury | 50 HP | 50 | 4-Stroke | 1997-2025 | 822158 | Standard and Bigfoot |
| Mercury | 50 HP Bigfoot | 50 | 4-Stroke | 1997-2025 | 822158 | Extended lower unit |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Boot Protector / Shift Boot |
| Installation | Direct OEM replacement |
| Fuel Type | Compatible with all fuel types |
| Connection | Press-fit installation |
| Housing Material | Marine-grade rubber compound |
| Housing Color | Black |
| Dimensions | 2.50" L x 1.75" W x 1.25" H (63.5mm x 44.45mm x 31.75mm) |
| Weight | 0.03 lbs (13.6g) |
| Fitting Type | Shift rod cap boot |
| Working Pressure | Standard marine operating pressure |
| Burst Pressure | Exceeds OEM specifications |
| Operating Temperature | -40°F to 200°F (-40°C to 93°C) |
| Warranty | 1 Year manufacturer warranty |
| Other Technical Attributes | Saltwater resistant, UV stable, oil resistant |
Package Contents
- 1 x Shift Boot (822158)
Installation Guide
- Ensure the engine is turned off and disconnected from the power source.
- Locate the shift rod and the existing boot that needs replacement.
- Carefully disconnect any linkages attached to the shift mechanism to gain access.
- Remove the old, deteriorated boot. You may need to cut it off if it's stuck.
- Thoroughly clean the shift rod and the surrounding housing area to remove any dirt or old adhesive.
- Gently slide the new shift boot over the rod and into position.
- Ensure the boot is fully seated on the housing to create a watertight seal. A press-fit should be sufficient.
- Reconnect the shift linkages and test the gear shifting to confirm smooth operation.
Troubleshooting & FAQ
How do I confirm this fits my engine?
This boot is specifically for Mercury 25-50HP 4-Stroke and select 2-Stroke models from 1995-2025. Verify your engine model is listed in the "Compatible Engine Models" table. Cross-referencing your old part number with Mercury 822158 is the most reliable way to ensure a correct fit.
What are the signs that my current shift boot needs replacement?
Common signs of failure include visible cracks, splits, brittleness, or perishing of the rubber. A compromised boot can allow water to leak into the lower unit, potentially causing significant damage to internal components.
Is any special maintenance required for this boot?
No special maintenance is needed. However, it is good practice to periodically inspect the boot for any signs of wear or damage, especially during routine engine maintenance or at the start of the boating season.
OEM vs. Aftermarket?
This listing is anreplacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is anreplacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
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Parts Finder
Use our Parts Finder to quickly locate the correct parts for your engine. Search by Make, HP, Stroke, Model, Year, and SN.
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Our database is currently being updated and expanded. More models, including Yamaha, Mercury, and Suzuki, are being verified and uploaded.
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