Crankshaft Bearing – Fits Yamaha 9.9HP/15HP Outboards (Replaces 93306-205U2-00)
Crankshaft Bearing – Fits Yamaha 9.9HP/15HP Outboards (Replaces 93306-205U2-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Crankshaft Bearing – Fits Yamaha 9.9HP/15HP Outboards (Replaces 933...
Product Details
This ball bearing is a direct-fit crankshaft component for various Yamaha 9.9HP and 15HP 2-stroke outboard motors from 1986 and up. Our Crankshaft Bearing – Fits Yamaha 9.9HP/15HP Outboards (Replaces 93306-205U2-00) is engineered for reliability and durability in marine environments.
It serves as a direct replacement for Yamaha part numbers 93306-205U2-00 and 93306-20514-00, and is cross-compatible with ITACO 93306 205U2.
- Designed for crankshaft installation.
- Constructed from high-strength metal for longevity.
- Includes one bearing for a complete replacement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Yamaha | 93306-20514-00 | 93306-205U2-00 |
| Yamaha | 93306-205U2-00 | |
| ITACO | 93306 205U2 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha owners, this part is compatible with a wide range of 9.9HP and 15HP 2-stroke models produced between 1984 and 1995. Please check your specific model code and year for an exact match.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | 9.9ELJ, 9.9ESJ, 9.9LJ, 9.9SJ | 9.9 | 2-Stroke | 1986 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELH, 9.9ESH, 9.9LH, 9.9SH | 9.9 | 2-Stroke | 1987 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELG, 9.9ESG, 9.9LG, 9.9SG | 9.9 | 2-Stroke | 1988 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELF, 9.9ESF, 9.9LF, 9.9SF | 9.9 | 2-Stroke | 1989 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELD, 9.9ESD, 9.9LD, 9.9SD | 9.9 | 2-Stroke | 1990 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELHP, 9.9ESHP, 9.9MLHP, 9.9MSHP | 9.9 | 2-Stroke | 1991 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELHQ, 9.9ESHQ, 9.9MLHQ, 9.9MSHQ | 9.9 | 2-Stroke | 1992 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELHR, 9.9ESHR, 9.9MLHR, 9.9MSHR | 9.9 | 2-Stroke | 1993 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELHS, 9.9ESHS, 9.9MLHS, 9.9MSHS | 9.9 | 2-Stroke | 1994 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELHT, 9.9ESHT, 9.9MLHT, 9.9MSHT | 9.9 | 2-Stroke | 1995 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELK, 9.9ESK, 9.9LK, 9.9SK | 9.9 | 2-Stroke | 1985 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 9.9ELN, 9.9ESN, 9.9LN, 9.9SN | 9.9 | 2-Stroke | 1984 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELJ, 15ESJ, 15LJ, 15SJ | 15 | 2-Stroke | 1986 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELH, 15ESH, 15LH, 15SH | 15 | 2-Stroke | 1987 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELG, 15ESG, 15LG, 15SG | 15 | 2-Stroke | 1988 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELF, 15ESF, 15LF, 15SF | 15 | 2-Stroke | 1989 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELD, 15ESD, 15LD, 15SD | 15 | 2-Stroke | 1990 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELHP, 15ESHP, 15MLHP, 15MSHP | 15 | 2-Stroke | 1991 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELHQ, 15ESHQ, 15MLHQ, 15MSHQ | 15 | 2-Stroke | 1992 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELHR, 15ESHR, 15MLHR, 15MSHR | 15 | 2-Stroke | 1993 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELHS, 15ESHS, 15MLHS, 15MSHS | 15 | 2-Stroke | 1994 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELHT, 15ESHT, 15MLHT, 15MSHT | 15 | 2-Stroke | 1995 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELK, 15ESK, 15LK, 15SK | 15 | 2-Stroke | 1985 | 93306-205U2-00 | Supersedes 93306-20514-00 |
| Yamaha | 15ELN, 15ESN, 15LN, 15SN | 15 | 2-Stroke | 1984 | 93306-205U2-00 | Supersedes 93306-20514-00 |
Technical Specs
- Product Type
- Ball Bearing
- Installation
- Crankshaft Bearing
- Material
- Metal
- Compatible Lubricant
- Grease
- Dimensions
- 6.0" L × 6.0" W × 5.0" H
- Weight
- 68g (2.39 oz)
- Other Technical Attributes
- Crankshaft bearing used in 9.9HP and 15HP Yamaha outboard engines
What’s in the Box
- 1 x Bearing (93306-205U2-00)
Installation Notes
- Ensure the engine is turned off, disconnected from the power source, and has cooled completely.
- Access the engine's crankshaft by removing the necessary cowlings and components as specified in your engine's service manual.
- Carefully remove the old bearing, taking note of its orientation and any associated seals or clips.
- Clean the crankshaft surface and bearing housing thoroughly to remove old grease and debris.
- Apply a fresh coat of compatible marine grease to the new bearing.
- Press the new bearing into place using the appropriate tools to ensure it is seated evenly and correctly. Do not use a hammer directly on the bearing.
- Reassemble all components in the reverse order of disassembly.
- Check for smooth rotation and proper alignment before starting the engine.
Troubleshooting & FAQ
How do I confirm this bearing fits my specific Yamaha engine?
The best way is to cross-reference your engine's model and year with the compatibility table on this page. You can also verify by matching the part number stamped on your old bearing with the numbers listed in our Part Number Matrix (93306-205U2-00 or 93306-20514-00).
What are the common signs of a failing crankshaft bearing?
Symptoms of a worn or failed crankshaft bearing include a rumbling or grinding noise from the engine block, increased engine vibration, and in severe cases, lateral play or wobble in the crankshaft. Immediate inspection and replacement are recommended if these signs appear.
How often should crankshaft bearings be replaced?
There is no fixed replacement interval; it depends on usage, maintenance, and operating conditions. Bearings should be inspected during any major engine overhaul or if you notice symptoms of failure. They are wear items and typically last for many years under normal use.
Do I need a special tool for installation?
A bearing press or a suitable driver set is highly recommended to ensure the bearing is installed evenly without damaging the bearing itself or the crankshaft housing. Improper installation can lead to premature failure.
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.
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