Upper Main Bearing – Fits Yamaha 200-300 HP V6 Outboards (Replaces 93311-940V0-00)
Upper Main Bearing – Fits Yamaha 200-300 HP V6 Outboards (Replaces 93311-940V0-00) 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
Upper Main Bearing – Fits Yamaha 200-300 HP V6 Outboards (Replaces ...
Product Details
This is a replacement Upper Main Bearing – Fits Yamaha 200-300 HP V6 Outboards (Replaces 93311-940V0-00) for cylinder #11. It is designed for Yamaha's 6-cylinder, 76-degree V6 engines manufactured between 1990 and 2010, covering both carbureted (1990–2005) and HPDI fuel-injected (2003–2010) models.
This component serves as a direct interchange for WSM 010-295-01, Offshore Marine 131-17-940V0, and Rareelectrical equivalents meeting OEM part number 93311-940V0-00.
- Installs internally within the engine powerhead.
- Engineered as a direct cross-reference to the original factory bearing.
- Covered by a standard manufacturer warranty against defects.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha (OEM) | 93311-940V0-00 |
| WSM | 010-295-01 |
| Offshore Marine | 131-17-940V0 |
| Rareelectrical | 93311-940V0-00 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This bearing is designed for a range of Yamaha V6 outboards. Please verify your specific engine model and production year before ordering.
| Brand | Model | Rated HP | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha | 6 Cyl 3.544 Bore 76 Degree | 200 | 1998–2005 | 93311-940V0-00 | Carbureted |
| Yamaha | 6 Cyl 3.544 Bore 76 Degree | 225 | 1994–2004 | 93311-940V0-00 | Carbureted |
| Yamaha | 6 Cyl 3.544 Bore 76 Degree | 250 | 1990–2004 | 93311-940V0-00 | Carbureted |
| Yamaha | 6 Cyl 3.660 Bore 3.3L HPDI | 200 | 2005–2010 | 93311-940V0-00 | Fuel injected |
| Yamaha | 6 Cyl 3.660 Bore 3.3L HPDI | 225 | 2003–2009 | 93311-940V0-00 | Fuel injected |
| Yamaha | 6 Cyl 3.660 Bore 3.3L HPDI | 250 | 2003–2009 | 93311-940V0-00 | Fuel injected |
| Yamaha | 6 Cyl 3.660 Bore 3.3L HPDI | 300 | 2004–2010 | 93311-940V0-00 | Fuel injected |
Technical Specs
- Product Type
- Upper Main Bearing (Cylinder #11)
- Installation
- Engine Internal
- Dimensions
- 7.5" L x 6.5" W x 9.0" H
- Warranty
- Standard manufacturer warranty (varies by brand)
What’s in the Box
- 1 x Bearing, Upper Main (93311-940V0-00)
Installation Notes
- Disconnect the battery and all fuel lines for safety.
- Remove the engine powerhead from the midsection, following the procedure in your official service manual.
- Carefully disassemble the engine block to gain access to the crankshaft and main bearings.
- Remove the old upper main bearing from the #11 cylinder position.
- Thoroughly clean and inspect the crankshaft journal for wear or damage.
- Generously lubricate the new bearing and its journal with appropriate engine assembly lube.
- Install the new bearing, ensuring it is correctly seated.
- Reassemble the engine block, torquing all fasteners to the manufacturer's specifications.
- Reinstall the powerhead, reconnect all electrical and fuel systems, and test operation.
Troubleshooting & FAQ
How do I confirm this bearing is the correct part for my motor?
The most reliable method is to match the OEM part number, 93311-940V0-00, with the one listed in your engine's service manual or parts diagram. You can also use our Engine & Model Compatibility table to verify fitment for your specific model and year.
What are the signs of a failing upper main bearing?
Common symptoms include a distinct knocking or rumbling sound from the upper portion of the engine, excessive vibration, or the presence of metallic shavings in the engine oil. These signs indicate internal engine wear and require immediate inspection.
Is any special preparation required before installation?
Yes. The bearing and its corresponding journal on the crankshaft must be immaculately clean and free of debris. It is critical to apply a high-quality engine assembly lubricant to both surfaces before installation to prevent damage during the initial startup.
Can I replace just the upper main bearing?
While possible, it is often recommended to inspect and potentially replace all main bearings during a rebuild, especially if the engine has high hours or the cause of failure is unknown. Consult your service manual or a professional marine mechanic for the best course of action.
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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