Crankshaft Bearing Shell B – Fits Yamaha/Parsun Outboard Motors (Replaces PAF115-05010003)
Crankshaft Bearing Shell B – Fits Yamaha/Parsun Outboard Motors (Replaces PAF115-05010003) 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
Crankshaft Bearing Shell B – Fits Yamaha/Parsun Outboard Motors (Re...
Product Details
This Crankshaft Bearing Shell B is an essential component designed for select Yamaha and Parsun 4-stroke outboard motors, primarily in the 75–115 HP range. It ensures smooth crankshaft rotation within the engine block, which is critical for engine performance and longevity.
It serves as a direct aftermarket replacement for Yamaha and Parsun part numbers including PAF115-05010003, 115-05010003-2, and 93310-636U4.
- Installs directly into the engine block.
- Designed for gasoline-powered outboard engines.
- Includes one crankshaft bearing shell as specified.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Parsun | PAF115-05010003 | |
| Yamaha | PAF115-05010003 | |
| Yamaha | 115-05010003-2 | Green bearing variant |
| Yamaha | 93310-636U4 | For 2-stroke models (E75B/85B/90A) |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
Designed primarily for Yamaha and Parsun F115 4-stroke models, but may also fit other specified Yamaha 2-stroke and 4-stroke engines. Always verify your OEM part number.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yamaha/Parsun | F115 | 115 | 4-Stroke | PAF115-05010003 | |
| Yamaha | F9.9/15 | 9.9-15 | 4-Stroke | 115-05010003-2 | Green bearing variant |
| Yamaha | E15D/15F | 15 | 2-Stroke | 663V-11400-01 | May be compatible crankshaft assembly |
| Yamaha | E75B/85B/90A | 75-90 | 2-Stroke | 93310-636U4 | Crankshaft bearing for these models |
Technical Specs
- Product Type
- Crankshaft Bearing Shell
- Installation
- Engine block mounting
- Fuel Type
- Gasoline
- Weight
- 20g
- Other Technical Attributes
- Green color (for 115-05010003-2 variant)
What’s in the Box
- 1 x Bearing Shell B, Crankshaft (PAF115-05010003)
Installation Notes
- Begin by disconnecting the battery and ensuring the engine is cool and stable. Drain the engine oil completely.
- Remove the powerhead from the midsection to access the engine block.
- Carefully disassemble the engine block halves to expose the crankshaft. Note the location and orientation of all components.
- Gently remove the old crankshaft bearing shells, inspecting the crankshaft journal for any scoring or damage.
- Clean the journal and bearing saddle thoroughly with a lint-free cloth and appropriate solvent.
- Lubricate the new bearing shell and journal with clean engine assembly lube.
- Place the new bearing shell into its correct position, ensuring it is properly seated.
- Reassemble the engine block, torquing all bolts to the manufacturer's specified sequence and values.
- Reinstall the powerhead, refill with fresh oil, and reconnect the battery.
- Before starting, manually turn the engine over to ensure there is no binding. Check for oil pressure immediately upon starting.
Note: This is a complex procedure that requires specialized tools and expertise. Professional installation is strongly recommended.
Troubleshooting & FAQ
How do I know if this bearing fits my engine?
The best way to confirm fitment is to match your original part number to one of the cross-references listed in our Part Number Matrix. Also, check your engine model against the Engine & Model Compatibility table. If you're still unsure, please contact us with your engine's model, serial number, and year.
What is the difference between the standard and green (115-05010003-2) bearing?
The green variant is typically used for specific Yamaha models like the F9.9/15 4-stroke engines. The color often indicates a slight variance in tolerance or material for a specific application. It's crucial to use the exact part number your engine manual specifies.
What are the signs of a failing crankshaft bearing?
Common symptoms include a deep knocking or rumbling sound from the engine, low oil pressure, and the presence of metallic particles in the engine oil. Severe failure can lead to engine seizure.
Do I need to replace all crankshaft bearings at once?
It is highly recommended to replace all main and connecting rod bearings at the same time during an engine rebuild. This ensures consistent tolerances and prevents premature failure of older, worn bearings.
Do I need special tools for installation?
Yes, installation requires specialized tools such as a torque wrench, engine stand, and potentially bearing pullers/drivers. Due to the precision required, we strongly advise professional installation.
Is this a replacement for Yamaha 93310-636U4?
Yes, it is listed as a compatible replacement for the bearing used in certain 2-stroke models like the E75B, E85B, and E90A. However, always double-check your service manual, as applications can vary.
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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