Description
Overview:
This Big End Bearing is a non-genuine replacement part designed to maintain the smooth running of Yanmar 3TNV70 series diesel engines, including 3TNV70 and 3TNV70-STB. It replaces OEM No. 719717-02901. The bearing supports the crankshaft at the connecting rod end, maintaining the vital oil film that prevents metal-to-metal contact and reduces wear. Made from durable, metal-backed bearing alloy with a smooth anti-friction surface, it is built for reliable service in compact industrial engines. Ideal for construction and garden machinery powered by Yanmar units-such as mini excavators, compact loaders, pumps and generators-it helps restore stable oil pressure and quiet operation after wear, making it a practical choice for maintenance and overhaul work.
Key Features:
- Non-genuine replacement for OEM 719717-02901
- Durable metal-backed bearing alloy for long service life
- Precision finish to promote consistent oil clearance and smooth running
- Compatible with Yanmar 3TNV70 and 3TNV70-STB engines
- Helps reduce knock and vibration from worn big end bearings
- Protects crankshaft journals with a low-friction bearing surface
- Locating features for secure seating in the connecting rod
- Easy to fit during routine bottom-end service with standard tools
- Supports reliable oil film and stable oil pressure under load
- Cost-effective alternative to genuine parts for everyday maintenance
Typical Applications:
Used during engine rebuilds, bottom-end refreshes, or when diagnosing low oil pressure, bearing noise, or crankpin wear on Yanmar 3TNV70-based equipment. Common across compact construction plant, site generators, compressors, pumps, turf and grounds-care machinery. Suitable for preventative maintenance schedules or component replacement after high hours, ensuring dependable operation in demanding site and workshop conditions.
Also known as:
Conrod bearing, connecting rod bearing, big-end shell, crankpin bearing, rod bearing insert, engine big end shells, bottom-end bearing.
Fits Models:
3TNV70
3TNV70-STB
Product Specifications
| L&S Part No. | 320 441 |
|---|---|
| Part Type | Non Genuine Part |
| OEM No. | 719717-02901 |
| Unit of Sale | 1 |
| Machine Type | Engines |
| Fits Brands | Yanmar |
| Key Features | - Non-genuine replacement for OEM 719717-02901 - Compatible with Yanmar 3TNV70 and 3TNV70-STB engines - Durable metal-backed bearing alloy for long service life - Precision finish ensures consistent oil clearance - Reduces knock and vibration from worn bearings |
| Fits Models | 3TNV70-STB |
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