Gasket Set – Fits Yanmar 4LH Series Marine Engines (Replaces 719173-92600)
Gasket Set – Fits Yanmar 4LH Series Marine Engines (Replaces 719173-92600) 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.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This complete Gasket Set for Yanmar 4LH Series Marine Engines is designed for 150–238 HP, 4-stroke diesel engines. It provides all necessary gaskets for a full engine overhaul on compatible models including the 4LHAHTE, 4LHADTE, and 4LHASTE series.
This kit serves as a direct replacement for Yanmar part number 719173-92600 and Repower Marine RMYGS10.
- Engineered for complete engine overhaul installations.
- Manufactured to OEM specifications in an ISO9001 approved facility.
- Designed specifically for marine diesel applications.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 719173-92600 |
| Repower Marine | RMYGS10 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket set is designed for specific Yanmar 4LH series marine diesel engines.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yanmar | 4LHAHTE | 150 | 4-Stroke | 719173-92600 | Marine Diesel |
| Yanmar | 4LHADTE | 190 | 4-Stroke | 719173-92600 | Marine Diesel |
| Yanmar | 4LHASTE | 238 | 4-Stroke | 719173-92600 | Marine Diesel |
Technical Specs
- Product Type
- Complete Engine Gasket Set
- Installation
- Engine Overhaul
- Fuel Type
- Diesel
- Housing Material
- Various (Gasket-appropriate materials)
- Product Dimensions
- 1.5" H x 22.0" W x 52.0" L
- Other Technical Attributes
- Manufactured to OEM specifications, ISO9001 approved European factory
What’s in the Box
- Complete Gasket Set (Replaces 719173-92600)
Installation Notes
- Disconnect the battery and safely drain all engine fluids (oil, coolant).
- Begin disassembling the engine, carefully labeling components and fasteners.
- Thoroughly clean all mating surfaces to remove old gasket material, sealant, and any debris. A clean, smooth surface is critical for a proper seal.
- Carefully compare each new gasket from the set with the old one you are replacing to confirm an exact match.
- Install the new gaskets according to your engine's service manual, applying sealant only where specified.
- Torque all bolts to the manufacturer's specifications in the correct sequence to ensure even pressure.
- Reassemble the remaining components, refill engine fluids, and inspect for leaks before starting the engine.
Troubleshooting & FAQ
How do I confirm this gasket set fits my engine?
This set is for Yanmar 4LH series engines, including 4LHAHTE, 4LHADTE, and 4LHASTE models. The best way to ensure fitment is to match your existing OEM part number (719173-92600) with the numbers listed here. Always verify visually against the product photos.
What are common signs of a failing engine gasket?
Symptoms include coolant in the oil (milky appearance), oil in the coolant, white smoke from the exhaust (burning coolant), overheating, or visible external leaks of oil or coolant from engine block mating surfaces.
Is this a complete kit for an engine rebuild?
This is a complete gasket set for a standard engine overhaul, including head gaskets, valve cover gaskets, oil pan gaskets, and other seals. However, it does not include pistons, rings, bearings, or other "hard" internal components.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9001 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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