Yanmar Crankshaft Bearing – Fits Yanmar 3YM Series Marine Engines (Replaces 719717-02901)
Yanmar Crankshaft Bearing – Fits Yanmar 3YM Series Marine Engines (Replaces 719717-02901) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Yanmar Crankshaft Bearing – Fits Yanmar 3YM Series Marine Engines (...
Product Details
This RECMAR Yanmar Crankshaft Bearing is a direct replacement for Yanmar 3YM series marine diesel engines. It is engineered to fit models including the 3YM20, 3YM27A, 3YM30, and 3YM30AE, ensuring reliable performance and compatibility.
This component is a direct interchange for Yanmar part number 719717-02901 and RECMAR part REC719717-02901.
- Designed for durability and precision to support consistent engine performance.
- Reduces internal friction for optimal operation.
- Installation is internal to the engine block.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 719717-02901 |
| RECMAR | REC719717-02901 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yanmar | 3YM20 | 20 | 4-Stroke | 719717-02901 | ||
| Yanmar | 3YM27A | 27 | 4-Stroke | 719717-02901 | ||
| Yanmar | 3YM30 | 30 | 4-Stroke | 719717-02901 | ||
| Yanmar | 3YM30AE | 30 | 4-Stroke | 719717-02901 |
Technical Specs
- Product Type
- Crankshaft Bearing
- Installation
- Engine Internal
- Fuel Type
- Diesel
- Dimensions
- Height: 7.0 cm, Width: 5.0 cm, Length: 7.0 cm
- Weight
- 0.02 kg (0.044 lb)
- Other Technical Attributes
- Designed for durability and precision; reduces internal friction and supports consistent performance
What’s in the Box
- 1 x Crankshaft Bearing (719717-02901)
Installation Notes
Installation of this crankshaft bearing is a complex task that requires engine disassembly and specialized tools. It should be performed by a qualified marine mechanic following the procedures in the official Yanmar service manual. Ensure all parts are meticulously cleaned and correctly lubricated to prevent premature wear and engine failure.
Troubleshooting & FAQ
How do I know if this crankshaft bearing will fit my engine?
This bearing is designed for Yanmar 3YM series engines. Please verify your specific model (3YM20, 3YM27A, 3YM30, 3YM30AE) and cross-reference the OEM part number 719717-02901 in your service manual or by inspecting your current part.
What are common signs of a failing crankshaft bearing?
Symptoms of a worn crankshaft bearing include a persistent knocking or rumbling sound from the engine, low oil pressure readings, and the presence of metallic particles in the engine oil during an oil change.
Can I replace just one bearing?
While it is sometimes possible, it is highly recommended to replace all main and connecting rod bearings at the same time during an engine rebuild. This ensures consistent clearances and prolongs engine life.
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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