Connecting Rod Bearing – Fits Yanmar 4LH/4LHA Series Marine Diesel Engines (Replaces 719174-23601)
Connecting Rod Bearing – Fits Yanmar 4LH/4LHA Series Marine Diesel Engines (Replaces 719174-23601) 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
Connecting Rod Bearing – Fits Yanmar 4LH/4LHA Series Marine Diesel ...
Product Details
This high-quality aftermarket Connecting Rod Bearing is engineered for a precise fit in Yanmar 4LH and 4LHA series marine diesel engines, including DTE, DTP, DTZE, DTZP, HTE, HTP, HTZE, HTZP, STE, STP, STZE, and STZP variants. It serves as a crucial internal component to ensure smooth engine operation and longevity.
This part is a direct replacement for Yanmar part number 719174-23601.
- Installation: Designed as an engine internal component requiring professional installation.
- Durability: Built to meet or exceed OEM specifications for performance in marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 719174-23601 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This bearing is designed for a wide range of Yanmar 4LH and 4LHA series engines.
| Brand | Model | Stroke | OEM Part No. |
|---|---|---|---|
| Yanmar | 4LHA-DTE | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-DTP | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-DTZE | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-DTZP | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-HTE | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-HTP | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-HTZE | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-HTZP | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-STE | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-STP | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-STZE | 4-Stroke | 719174-23601 |
| Yanmar | 4LHA-STZP | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-DTE | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-DTZ | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-HT | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-HTE | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-HTZ | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-HTZAY | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-ST | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-STE | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-STZ | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-STZAY | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-TE | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-UT | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-UTZ | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-UTZAY | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-WST | 4-Stroke | 719174-23601 |
| Yanmar | 4LH-WSTZY | 4-Stroke | 719174-23601 |
Technical Specs
- Product Type
- Connecting Rod Bearing
- Installation
- Engine Internal Component
- Dimensions
- Length: 8.5 cm, Width: 5.0 cm, Height: 3.0 cm
- Weight
- 0.09 kg (0.2 lb)
- Compatible Engines
- Yanmar 4LH and 4LHA Series
- Warranty
- 1 Year (Aftermarket)
What’s in the Box
- 1 x Connecting Rod Bearing (719174-23601)
Installation Notes
- Consult your engine’s service manual for detailed procedures and safety precautions.
- Disconnect the battery and perform necessary engine disassembly to access the crankcase.
- Carefully remove the connecting rod cap associated with the bearing being replaced.
- Remove the old bearing halves from the rod and cap, noting their orientation.
- Clean all surfaces meticulously, ensuring no oil, debris, or old bearing material remains.
- Install the new bearing halves, applying assembly lube as specified by the engine manufacturer.
- Reinstall the connecting rod cap and tighten bolts to the correct torque sequence and value.
- Rotate the crankshaft by hand to ensure free movement without binding.
- Complete engine reassembly, refill fluids, and perform initial startup checks for oil pressure and leaks.
Troubleshooting & FAQ
How do I know if this connecting rod bearing will fit my engine?
This bearing is designed for Yanmar 4LH and 4LHA series engines. The most reliable method is to cross-reference the part number 719174-23601 with your engine's service manual or existing part. Always verify compatibility before purchasing.
What are the signs of a failing connecting rod bearing?
Common symptoms include a persistent, rhythmic knocking or ticking sound from the engine (rod knock), low oil pressure, and the presence of metallic shavings or flakes in the engine oil during an oil change.
What is the difference between this aftermarket bearing and an OEM version?
While OEM parts are made by the engine manufacturer, this aftermarket bearing is produced by a third-party to meet or exceed original specifications. It offers comparable performance and material quality at a more accessible price point.
Is any special tooling required for installation?
Yes, installation requires specialized tools such as a torque wrench, bearing pullers/installers, and potentially micrometers to check clearances. This is a job best left to a qualified marine mechanic.
Should I replace all connecting rod bearings at the same time?
It is best practice to replace all connecting rod bearings as a set during an engine rebuild or if one has failed. This ensures consistent clearances, wear, and performance across all cylinders.
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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