Exhaust Elbow Gasket – Fits Yanmar Marine Engines (Replaces 119173-18811)
Exhaust Elbow Gasket – Fits Yanmar Marine Engines (Replaces 119173-18811) 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
Exhaust Elbow Gasket – Fits Yanmar Marine Engines (Replaces 119173-...
Product Details
This high-quality Exhaust Elbow Gasket is designed for a precise fit on a wide range of Yanmar marine diesel engines, including the 4LH and 4JH series models from 1989 and newer. It ensures a reliable seal to maintain engine performance and safety.
It serves as a direct replacement and interchange for Yanmar part number 119173-18811.
- Engineered to prevent exhaust gas and water leakage in marine cooling systems.
- Seals the critical connection between the exhaust elbow and engine components.
- Made from durable, heat-resistant composite material for longevity in harsh marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Yanmar | 119173-18811 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is compatible with the following Yanmar engine models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Yanmar | 4LH-DTE | 4-Stroke | 1989 and newer | 119173-18811 | |
| Yanmar | 4LH-DTZ | 4-Stroke | 119173-18811 | ||
| Yanmar | 4LH-HTE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4LH-STE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4LH-TE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH-HTBE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH-TE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH110 | 110 | 4-Stroke | 119173-18811 | |
| Yanmar | 4JH2 | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH3-DTE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH3-HTE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH3-TE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH3E | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH4-DTE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH45 | 45 | 4-Stroke | 119173-18811 | |
| Yanmar | 4JH4AE | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH4E | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH57 | 57 | 4-Stroke | 119173-18811 | |
| Yanmar | 4JH5E | 4-Stroke | 119173-18811 | ||
| Yanmar | 4JH80 | 80 | 4-Stroke | 119173-18811 | |
| Yanmar | 4LHA-DTP | 4-Stroke | 119173-18811 | ||
| Yanmar | 4LHA-HTP | 4-Stroke | 119173-18811 | ||
| Yanmar | 4LHA-STP | 4-Stroke | 119173-18811 | ||
| Yanmar | 4LV150 | 150 | 4-Stroke | 119173-18811 | |
| Yanmar | 4LV195 | 195 | 4-Stroke | 119173-18811 | |
| Yanmar | 4LV230 | 230 | 4-Stroke | 119173-18811 | |
| Yanmar | 4LV250 | 250 | 4-Stroke | 119173-18811 | |
| Yanmar | 4YB180 | 180 | 4-Stroke | 119173-18811 | |
| Yanmar | 6AYAM-ET | 4-Stroke | 119173-18811 | ||
| Yanmar | 6BY2 | 4-Stroke | 119173-18811 | ||
| Yanmar | 6BY3 | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LP | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LPA-STP2 | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LY2-STE | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LY2A-STP | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LY3-ETP | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LY3-STP | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LY3-UTP | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LY400 | 400 | 4-Stroke | 119173-18811 | |
| Yanmar | 6LY440 | 440 | 4-Stroke | 119173-18811 | |
| Yanmar | 6LYA-STP | 4-Stroke | 119173-18811 | ||
| Yanmar | 6LYA-UTE-STE | 4-Stroke | 119173-18811 | ||
| Yanmar | 8LV-320 | 320 | 4-Stroke | 119173-18811 | |
| Yanmar | 8LV-350 | 350 | 4-Stroke | 119173-18811 | |
| Yanmar | 8LV-370 | 370 | 4-Stroke | 119173-18811 | |
| Yanmar | SB8 | 4-Stroke | 119173-18811 | ||
| Yanmar | SVE12 | 4-Stroke | 119173-18811 | ||
| Yanmar | YSB12 | 4-Stroke | 119173-18811 | ||
| Yanmar | YSB8 | 4-Stroke | 119173-18811 | ||
| Yanmar | YSE12 | 4-Stroke | 119173-18811 | ||
| Yanmar | YSE8 | 4-Stroke | 119173-18811 | ||
| Yanmar | YSM12 | 4-Stroke | 119173-18811 | ||
| Yanmar | YSM8 | 4-Stroke | 119173-18811 |
Technical Specs
- Product Type
- Exhaust Elbow Gasket
- Material
- Heat-resistant composite
- Dimensions
- 14.0 cm × 10.0 cm × 0.2 cm
- Fuel Type
- Diesel
- Installation Area
- Seals between exhaust elbow and engine components
- Primary Function
- Prevents exhaust gas and water leakage in marine cooling systems
- Operating Temperature
- Heat-resistant for marine exhaust applications
What’s in the Box
- 1 x Exhaust Elbow Gasket (Replaces 119173-18811)
Installation Notes
- Ensure the engine is completely cool and the battery is disconnected before starting.
- Drain the cooling system as required to access the exhaust components.
- Carefully remove the existing exhaust elbow, noting the position of all fasteners and brackets.
- Thoroughly clean the mating surfaces on both the engine manifold and the exhaust elbow. Remove all old gasket material, soot, and corrosion.
- Place the new gasket into position, ensuring it aligns perfectly with all bolt holes.
- Reinstall the exhaust elbow and tighten bolts to the manufacturer's specified torque settings in the correct sequence.
- Reconnect all hoses, refill the cooling system, and reconnect the battery.
- Start the engine and carefully inspect for any exhaust or water leaks around the new gasket.
Troubleshooting & FAQ
How do I know if this gasket fits my Yanmar engine?
This gasket is designed for a broad range of Yanmar engines, including many 4LH and 4JH series models. Review the 'Engine & Model Compatibility' table on this page to confirm your specific model is listed. Always compare our product photos and specifications to your old part before ordering to guarantee a match.
What are the signs of a failing exhaust elbow gasket?
Common signs include water or black soot stains around the exhaust elbow connection, an unusual increase in engine noise, the smell of exhaust fumes in the engine bay, or engine overheating caused by cooling water leaks into the exhaust system.
How often should this gasket be replaced?
There is no fixed replacement interval. The gasket should be replaced whenever the exhaust elbow is removed for service or if any signs of leakage are detected. It is good practice to inspect it during regular engine maintenance cycles.
Can I reuse my old mounting bolts?
We strongly recommend inspecting the old bolts for corrosion, stretching, or thread damage. If they show any signs of wear, they should be replaced with new hardware of the correct grade and size to ensure a secure, lasting seal and prevent future issues.
Is this an OEM part?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, with batch-inspections for quality and consistency.
What are the shipping speed and cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free for most regions; expedited options will appear at checkout where available.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, contact our support team with your order details. Returns are accepted within our standard window for items that are unused and 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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