Sleeve/Ring Kit – Fits Mercury/Mariner/Force 50-150HP Outboards (Replaces 42461A1)
Sleeve/Ring Kit – Fits Mercury/Mariner/Force 50-150HP Outboards (Replaces 42461A1) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Sleeve/Ring Kit – Fits Mercury/Mariner/Force 50-150HP Outboards (Re...
Product Details
This Sleeve/Ring Kit – Fits Mercury/Mariner/Force 50-150HP Outboards is designed for lower unit (driveshaft) applications on 3 & 4 cylinder outboards from 1987 to the present. It serves as a critical wear component for the driveshaft within the gear housing, ensuring a proper seal.
It is a direct aftermarket replacement for Mercury OEM part 42461A1 and SEI Marine part 98-205-23K.
- Installation Method: Press-fit over the driveshaft.
- Installation Note: A special tool or correctly sized pipe (e.g., 1" galvanized) is recommended for proper installation.
- Function: Provides a new sealing surface for driveshaft seals.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Mercury | 42461A1 |
| SEI Marine | 98-205-23K |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Mercury, Mariner, and Force applications, verify your engine's horsepower, stroke, year, and any specific notes regarding gear ratio or serial number ranges to ensure correct fitment.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Mercury/Mariner | 75/90/115 DFI | 75-115 | 2-Stroke | 1987–current | 42461A1 | For 2.33:1 Gear Ratio |
| Mercury/Mariner | 75/90/115 DFI | 75-115 | 2-Stroke | 1987–current | 42461A1 | For 2.07:1 Gear Ratio |
| Mercury/Mariner | 75/80/90/100 EFI | 75-100 | 4-Stroke | 1987–current | 42461A1 | For 2.33:1 Gear Ratio |
| Mercury/Mariner | 75/90 | 75-90 | 4-Stroke | 1987–current | 42461A1 | For 2.33:1 Gear Ratio |
| Mercury/Mariner | 75/90 | 75-90 | 4-Stroke | Up to 0T598999 | 42461A1 | For 2.07:1 Gear Ratio |
| Mercury/Mariner | 115 EFI | 115 | 4-Stroke | Up to 0T590053 | 42461A1 | For 2.07:1 Gear Ratio |
| Mercury/Mariner | 115 EFI | 115 | 4-Stroke | From 0T590054 | 42461A1 | For 2.07:1 Gear Ratio |
| Mercury/Mariner | 75/90 HP (3 cylinder) | 75-90 | 2-Stroke | 1987–current | 42461A1 | Gear Housing (Drive Shaft) |
| Mercury/Mariner | 75/90 HP 65 JET (3 cylinder) | 75-90 | 2-Stroke | 1987–current | 42461A1 | 3 JAW REVERSE CLUTCH |
| Mercury/Mariner | 75/90 HP 65 JET (3 cylinder) | 75-90 | 2-Stroke | 1987–current | 42461A1 | 6 JAW REVERSE CLUTCH |
| Mercury/Mariner | 100/115/125 HP 80 JET (4 cylinder) | 100-125 | 2-Stroke | 1987–current | 42461A1 | 3 JAW REVERSE CLUTCH |
| Mercury/Mariner | 100/115/125 HP 80 JET (4 cylinder) | 100-125 | 2-Stroke | 1987–current | 42461A1 | 6 JAW REVERSE CLUTCH |
| Mercury/Mariner | 115/125 HP 80 JET (4 cylinder) | 115-125 | 2-Stroke | 1987–current | 42461A1 | For 2.07:1 Gear Ratio |
| Force | 75/90 | 75-90 | 2-Stroke | 1995–1999 | 42461A1 | Gear Housing Assembly, Driveshaft |
| Force | 90 H.P. | 90 | 2-Stroke | 1996–1998 | 42461A1 | 3 JAW REVERSE CLUTCH |
| Force | 90 H.P. | 90 | 2-Stroke | 1987–current | 42461A1 | 6 JAW REVERSE CLUTCH |
| Force | 120 H.P. | 120 | 2-Stroke | 1995–1999 | 42461A1 | Gear Housing Assembly, Driveshaft |
| Force | 120 H.P. | 120 | 2-Stroke | 1996–1997 | 42461A1 | 3 JAW REVERSE CLUTCH |
| Force | 120 H.P. | 120 | 2-Stroke | 1987–current | 42461A1 | 6 JAW REVERSE CLUTCH |
Technical Specs
- Product Type
- Lower Unit Sleeve/Ring Kit
- Installation
- Press-fit over driveshaft
- Fitting Type
- Press-fit
- Dimensions
- Height: 2.0 in; Width: 11.0 in; Length: 10.0 in;
- Other Technical Attributes
- Wear component for driveshaft in gear housing
What’s in the Box
- 1 x Sleeve/Ring Kit (Replaces 42461A1)
Installation Notes
- Ensure the driveshaft surface is clean and free of burrs or old material.
- Lightly lubricate the driveshaft before sliding the new sleeve on.
- Using a dedicated sleeve driver tool or a piece of 1-inch pipe, gently and evenly press the sleeve down until it is fully seated on the driveshaft. Do not use a hammer directly on the sleeve, as this can cause damage.
- Confirm the sleeve is flush and properly aligned before reassembling the lower unit.
Troubleshooting & FAQ
How do I know if this sleeve/ring needs to be replaced?
Common signs of a failing driveshaft sleeve include discovering water in your gear lube (a milky consistency), observing visible grooves or scoring on the sleeve's surface, or noticing a play or looseness where the seals make contact. Any visible damage warrants replacement.
Is a special tool absolutely necessary for installation?
While a specific tool is best, installation is possible without it. The key is to apply even pressure to press the sleeve on. Users report success using a 1" galvanized pipe that fits over the driveshaft and rests on the sleeve's edge. This allows you to tap it into place without damaging the sleeve surface.
What is the function of this sleeve?
This sleeve provides a smooth, uniform surface for the driveshaft's oil seals to ride on. This is critical for preventing water from entering the gearcase and preventing gear oil from leaking out.
Will this fit all 50-150HP engines listed?
It fits a wide range of Mercury, Mariner, and Force engines from 1987-current, but you must verify your specific model. Pay close attention to notes in the compatibility table regarding gear ratios, serial number breaks, and engine cylinder count, as there are variations.
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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