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Exhaust Elbow Gasket – Fits Yanmar Marine Diesel Engines (Replaces 119171-13510)

Sale price $3.99 Regular price $6.00
Shipping calculated at checkout.

Exhaust Elbow Gasket – Fits Yanmar Marine Diesel Engines (Replaces 119171-13510) is backordered and will ship as soon as it is back in stock.


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

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This high-quality Exhaust Elbow Gasket creates a reliable seal between the exhaust elbow and the engine on various Yanmar marine diesel engines. It is designed specifically for 4-stroke models, including the 4LH-DTE, 4LH-HTE, and 4LH-STE series, ensuring a precise, leak-free fit.

This component is a direct replacement for Yanmar part number 119171-13510 and interchanges with HDI G3B.

  • Engineered for direct-fit installation.
  • Designed to withstand constant exposure to saltwater and hot exhaust gases.
  • Made from heat and oil-resistant materials for durability in marine applications.

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Yanmar 119171-13510
HDI G3B

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This gasket fits select Yanmar 4LH series engines. Please check the specific model and notes for details.

Brand Model Stroke OEM Part No. Notes
Yanmar 4LH-DTE 4-Stroke 119171-13510 Used with elbow 119181-13500
Yanmar 4LH-HTE 4-Stroke 119171-13510
Yanmar 4LH-STE 4-Stroke 119171-13510 Used with elbow 119181-13500
Yanmar 4LH-TE 4-Stroke 119171-13510

Technical Specs

Product Type
Exhaust Elbow Gasket
Installation
Direct fit
Fuel Type
Diesel
Connection
Exhaust elbow to engine
Material
Heat-resistant composite
Dimensions
10.5 × 1.0 × 0.1
Weight
0.06 kg (0.13 lb)
Operating Temperature
Heat and oil resistant for marine diesel exhaust applications
Other Attributes
Designed to withstand exposure to saltwater and hot exhaust gases

What’s in the Box

  • 1 x Exhaust Elbow Gasket (119171-13510)

Installation Notes

  1. Ensure the engine is completely cool and disconnect the battery for safety.
  2. Locate the exhaust elbow-to-engine connection and carefully remove the mounting hardware.
  3. Remove the old gasket, noting its orientation. Scrape away any remaining gasket material from both mating surfaces until they are clean and smooth.
  4. Position the new gasket correctly. Re-install the exhaust elbow and tighten the bolts to the manufacturer's specified torque in the correct sequence.
  5. Reconnect the battery, start the engine, and carefully check for any exhaust leaks around the new seal.

Troubleshooting & FAQ

How do I know if this gasket fits my Yanmar engine?

This gasket is made for Yanmar 4LH series engines. To ensure compatibility, check the "Engine & Model Compatibility" table and confirm your engine model (e.g., 4LH-DTE, 4LH-STE) and that it uses the OEM part number 119171-13510.

What are the signs of a failing exhaust elbow gasket?

Common signs include a noticeable exhaust leak (a hissing or puffing sound from the engine bay), visible soot streaks near the elbow connection, a strong exhaust odor, or reduced engine performance.

How often should I replace this gasket?

We recommend replacing the exhaust elbow gasket any time the exhaust elbow is removed for service, inspection, or replacement. It is a single-use part and should not be reused to ensure a proper seal.

Is this part identical to the original Yanmar gasket?

This is an aftermarket part designed to meet or exceed OEM specifications for fit, material performance, and function. It provides a reliable, long-lasting seal in harsh marine exhaust conditions but is not an OEM Yanmar component.

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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