Connecting Rod Bearing Set, Mark 3 – Fits Yanmar 6LP & 6LPA Series (Replaces 119770-01010)
Connecting Rod Bearing Set, Mark 3 – Fits Yanmar 6LP & 6LPA Series (Replaces 119770-01010) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Connecting Rod Bearing Set, Mark 3 – Fits Yanmar 6LP & 6LPA Ser...
Product Details
This is a replacement Connecting Rod Bearing Set, Mark 3 designed for Yanmar 6LP and 6LPA series, 315 HP, 4-stroke marine diesel engines that were originally manufactured with the Mark 3 bearing specification. It is a crucial internal component for maintaining engine performance and reliability.
This set serves as a direct replacement for Yanmar OEM part number 119770-01010.
- Installation: Mounts as an internal engine component.
- Technology: Mark 3 specification denotes the latest version, incorporating technological advances for improved performance and durability.
- Fuel Type: Designed for diesel engines.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 119770-01010 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yanmar Marine Engines: Please ensure your specific model is listed. This part is only for engines requiring the Mark 3 bearing specification.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yanmar | 6LP-DT | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-DTE | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-DTZE | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-DTZY | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-ST | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-STE | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-STZE | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-STZY | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-STZYJ | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-WDT | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LP-WDTZY | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LPA-DTP | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LPA-DTZP | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LPA-STP | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LPA-STP2 | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LPA-STZ | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LPA-STZP2 | 315 | 4-Stroke | 119770-01010 | |
| Yanmar | 6LPA-STZP3 | 315 | 4-Stroke | 119770-01010 |
Technical Specs
- Product Type
- Connecting Rod Bearing Set, Mark 3
- Installation
- Engine internal component
- Fuel Type
- Diesel
- Dimensions
- 9.0" L x 6.5" W x 5.5" H
- Weight
- 0.04 kg (0.088 lb)
- Other Technical Attributes
- Mark 3 specification denotes the latest version incorporating technological advances for improved performance and durability
What’s in the Box
- 6 x Connecting Rod Bearing (119770-01010)
Installation Notes
- Ensure the engine is completely cool and disconnected from its power source.
- Drain the engine oil completely as per the manufacturer's guidelines.
- Following the official service manual, carefully disassemble the engine to gain access to the connecting rods.
- Remove the old connecting rod bearings, paying close attention to their orientation and markings.
- Thoroughly clean the connecting rod and cap surfaces, ensuring they are free of old oil and debris.
- Apply a quality engine assembly lubricant to the new bearings before installation.
- Install the new bearings, confirming they are correctly seated in the rod and cap.
- Reassemble the connecting rods and tighten the bolts to the manufacturer's specified torque values.
- Continue reassembling the remainder of the engine in reverse order of disassembly.
- Refill the engine with new, recommended-grade oil.
- Prime the oiling system before attempting to start the engine to ensure lubrication on first startup.
Troubleshooting & FAQ
How do I know if this Mark 3 bearing set is correct for my engine?
This set is specifically for Yanmar 6LP and 6LPA series engines manufactured with the Mark 3 connecting rod bearing specification. Always verify your engine's service records or consult a certified Yanmar mechanic to confirm the required bearing mark, as using the wrong version can cause severe engine damage.
What's the difference between Mark 3 and earlier bearing versions?
The Mark 3 specification represents an updated design from Yanmar, incorporating technological advances for improved durability and performance compared to earlier versions. Using the correct mark specified for your engine is crucial for proper fit, clearance, and long-term function.
What are the signs of failing connecting rod bearings?
Common symptoms include a persistent, rhythmic knocking or ticking sound from the engine (often called "rod knock"), low oil pressure warnings, and the presence of metallic shavings or glitter in the engine oil and filter upon inspection.
Can I install these bearings myself?
This is an advanced repair that requires engine disassembly and specialized tools, including a torque wrench. We strongly recommend installation by a qualified marine mechanic to ensure correct fitment, clearances, and engine safety.
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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