Axial Bearing – Fits Yanmar 3YM Series Marine Engines (Replaces 119717-02930)
Axial Bearing – Fits Yanmar 3YM Series Marine Engines (Replaces 119717-02930) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Axial Bearing – Fits Yanmar 3YM Series Marine Engines (Replaces 119717-02930) is backordered and will ship as soon as it is back in stock.
Product Details
This Axial Bearing – Fits Yanmar 3YM Series Marine Engines (Replaces 119717-02930) is a crucial internal component designed for Yanmar 3YM20, 3YM27A, 3YM30, and 3YM30AE marine diesel engines. It ensures proper crankshaft alignment and function within the cylinder block assembly.
This part serves as a direct replacement for Yanmar OEM part number 119717-02930.
- Product Type: Axial Bearing (Thrust Bearing)
- Installation: Internal Engine Component
- Location: Located in cylinder block assembly
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 119717-02930 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This axial bearing is designed for specific Yanmar 3YM series engines.
| Brand | Model | Rated HP | Stroke | OEM Part No. |
|---|---|---|---|---|
| Yanmar | 3YM20 | 20 | 4-Stroke | 119717-02930 |
| Yanmar | 3YM27A | 27 | 4-Stroke | 119717-02930 |
| Yanmar | 3YM30 | 30 | 4-Stroke | 119717-02930 |
| Yanmar | 3YM30AE | 30 | 4-Stroke | 119717-02930 |
Technical Specs
- Product Type
- Axial Bearing (Thrust Bearing)
- Installation
- Internal Engine Component
- Fuel Type
- Diesel
- Dimensions
- 6.5" L x 6.5" W x 0.5" H
- Other Technical Attributes
- Located in cylinder block assembly
What’s in the Box
- 1 x AXIAL BEARING (119717-02930)
Installation Notes
- Ensure the engine is off, cool, and disconnected from the power source before starting work.
- Drain the engine oil and coolant completely.
- Consult your engine's official service manual to identify the correct procedure for accessing internal components.
- Disassemble the necessary parts of the engine to reach the cylinder block and crankshaft area.
- Carefully remove the old axial bearing, paying close attention to its orientation.
- Thoroughly clean the mounting surface and adjacent areas of any dirt, oil, or old gasket material.
- Liberally apply fresh, clean engine oil to the new axial bearing before installation.
- Install the new bearing, ensuring it is correctly seated and aligned as per the service manual.
- Reassemble all engine components in the reverse order of disassembly, torquing all bolts to the manufacturer’s specified values.
- Refill the engine with the correct type and amount of oil and coolant.
- After reconnecting power, check for leaks and test the engine's operation in a safe manner.
Troubleshooting & FAQ
How do I know if my axial bearing needs replacement?
Signs of a failing axial bearing include excessive crankshaft end play (fore-and-aft movement), engine knocking or rumbling sounds, or the presence of bronze-colored flakes in the engine oil during a change. Diagnosis should be confirmed by a qualified mechanic following the procedures in your engine's service manual.
What is the function of this bearing?
The axial bearing, or thrust bearing, manages the axial (forward and backward) thrust of the crankshaft. It prevents excessive movement, which is critical for maintaining engine timing and preventing damage to internal components.
Does this part require lubrication during installation?
Yes, this is absolutely essential. The new axial bearing must be thoroughly lubricated with clean engine oil before and during installation to ensure proper function and prevent immediate failure.
Is this an aftermarket or OEM part?
This listing is for a high-quality aftermarket replacement part, not an original equipment manufacturer (OEM) component. It is engineered to meet or exceed OEM specifications and is produced in an ISO 9002 certified facility to ensure quality and performance.
What are your shipping speeds and costs?
We offer fast worldwide shipping, with most orders arriving within 5–15 days. Standard shipping is free. If expedited shipping is available for your location, the options and costs will be displayed at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal marine use. Should you encounter an issue, please contact our support team with your order number. Returns of unused parts in their original packaging are accepted within our standard return period; please see our full policy page or contact us for details.
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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