Cover Gasket – Fits Yanmar 4LH & 6LY Series Marine Engines (Replaces 124610-01862)
Cover Gasket – Fits Yanmar 4LH & 6LY Series Marine Engines (Replaces 124610-01862) 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
Cover Gasket – Fits Yanmar 4LH & 6LY Series Marine Engines (Rep...
Product Details
This high-quality aftermarket Cover Gasket is engineered for a precise fit on Yanmar Marine 4LH/4LHA and 6LY/6LYM series diesel engines manufactured between approximately 1990 and 2010. It ensures a reliable seal for various engine covers, preventing fluid leaks and maintaining optimal performance.
This part is a direct replacement for OEM part number Yanmar 124610-01862.
- Engineered for direct placement between mating surfaces without modifications.
- Constructed from a durable composite fiber-reinforced elastomer with a steel core for longevity.
- Designed to resist degradation from engine oils, coolants, and saltwater exposure.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 124610-01862 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is documented to fit the following Yanmar marine engines.
| Brand | Model | Stroke | OEM Part No. |
|---|---|---|---|
| Yanmar | 4LH-TE | 4-Stroke | 124610-01862 |
| Yanmar | 4LH-HTE | 4-Stroke | 124610-01862 |
| Yanmar | 4LH-HTZ | 4-Stroke | 124610-01862 |
| Yanmar | 4LHA-HTP | 4-Stroke | 124610-01862 |
| Yanmar | 4LHA-HTZE | 4-Stroke | 124610-01862 |
| Yanmar | 4LHA-HTZP | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-UT | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-ST | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-UTZY | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-STZY | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-UTM | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-STM | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-UTE | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-STE | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-WST | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-WSTZY | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-WUT | 4-Stroke | 124610-01862 |
| Yanmar | 6LY-WUTZY | 4-Stroke | 124610-01862 |
| Yanmar | 6LYM-UTE | 4-Stroke | 124610-01862 |
| Yanmar | 6LYM-STE | 4-Stroke | 124610-01862 |
| Yanmar | 6LYM-UTEHD | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-ST | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-STVY | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-STP | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-A-STP | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-A-UTP | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-WDT | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-WDTZY | 4-Stroke | 124610-01862 |
| Yanmar | 6LY2-WST | 4-Stroke | 124610-01862 |
| Yanmar | 6LYA-STE | 4-Stroke | 124610-01862 |
| Yanmar | 6LYA-STP | 4-Stroke | 124610-01862 |
| Yanmar | 6LYA-UTE | 4-Stroke | 124610-01862 |
Technical Specs
- Product Type
- Cover Gasket
- Installation
- Direct placement between mating surfaces
- Material
- Composite fiber-reinforced elastomer with steel core
- Compatibility
- Yanmar 4LH, 4LHA, 6LY, 6LYM series engines
- Dimensions
- 12.5" L x 10.0" W x 0.1" H
- Thickness
- 1.5 mm (compressed)
- Temperature Rating
- -40°C to 200°C (-40°F to 392°F)
- Fluid Resistance
- Withstands engine oils, coolants, and saltwater exposure
- OEM Part Number
- 124610-01862
- Aftermarket Part Number
- REC124610-01862
What’s in the Box
- 1 x Cover Gasket (124610-01862)
Installation Notes
- Ensure the engine is off, cool, and the battery is disconnected.
- Drain necessary fluids (oil or coolant) to a level below the cover you are servicing.
- Carefully remove any components obstructing access, then unbolt and remove the cover.
- Remove the old gasket. Thoroughly clean both the cover and the engine mating surfaces. Ensure they are completely free of old gasket material, sealant, oil, and debris.
- Position the new gasket correctly. It is designed for a dry installation; do not use sealant unless explicitly required by the manufacturer's service manual.
- Reinstall the cover and tighten the bolts in the sequence and to the torque specified by the engine manufacturer to ensure even pressure.
- Refill the fluids to the appropriate levels.
- Reconnect the battery, start the engine, and carefully check for any leaks as it comes up to operating temperature.
Troubleshooting & FAQ
How do I know if this gasket will fit my engine?
This gasket is made for Yanmar 4LH and 6LY series engines. To ensure a perfect match, compare your engine model against the detailed compatibility list on this page and verify the part number.
What are the signs of a failing cover gasket?
Common signs include visible fluid leaks (oil or coolant) around the cover's sealing edge, engine overheating, or a drop in fluid levels without an obvious cause. A clean engine bay makes these symptoms easier to spot.
Do I need to apply sealant to this gasket?
No, this gasket is designed for a dry-fit installation. Applying sealants can interfere with its ability to seal properly and may lead to premature failure.
When should this gasket be replaced?
Gaskets are single-use components and should be replaced any time the part they seal is removed for service or repair. They do not have a scheduled replacement interval otherwise.
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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