Exhaust Gasket – Fits Yanmar 4JH Series Diesel Engines (Replaces 129472-13520)
Exhaust Gasket – Fits Yanmar 4JH Series Diesel Engines (Replaces 129472-13520) is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability
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
Exhaust Gasket – Fits Yanmar 4JH Series Diesel Engines (Replaces 12...
Product Details
This high-quality Exhaust Gasket is engineered for a precise fit on Yanmar 4JH series marine and industrial diesel engines. It creates a durable seal between the turbocharger and the exhaust elbow, preventing leaks and ensuring optimal engine performance in turbocharged applications.
This part is a direct replacement for Yanmar part number 129472-13520 and HDI Marine GL3.
- Installs securely between the turbocharger and exhaust elbow.
- Designed for turbocharged marine and industrial diesel engines.
- Includes one turbine outlet gasket for a complete replacement.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 129472-13520 |
| HDI Marine | GL3 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is compatible with the following Yanmar marine and industrial diesel engine models.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Yanmar | 4JH3-TE | 4-Stroke | 129472-13520 | |
| Yanmar | 4JH4-TE | 4-Stroke | 129472-13520 | |
| Yanmar | 4JH2L-HT | 4-Stroke | 129472-13520 | HDI Marine fitment |
| Yanmar | 4JH2-UTE | 4-Stroke | 129472-13520 | HDI Marine fitment |
| Yanmar | 4JH2-UTBE | 4-Stroke | 129472-13520 | HDI Marine fitment |
| Yanmar | 4JH2-TE | 4-Stroke | 129472-13520 | HDI Marine fitment |
| Yanmar | 4JH2-TBE | 4-Stroke | 129472-13520 | HDI Marine fitment |
| Yanmar | 4JH2-DTE | 4-Stroke | 129472-13520 | HDI Marine fitment |
| Yanmar | 4JH2-DTBE | 4-Stroke | 129472-13520 | HDI Marine fitment |
| Yanmar | 4LH-DTE | 4-Stroke | 129472-13520 | Discount Marine Source fitment |
| Yanmar | 4LHA-DTP | 4-Stroke | 129472-13520 | Discount Marine Source fitment |
| Yanmar | 4LHA-HTP | 4-Stroke | 129472-13520 | Discount Marine Source fitment |
| Yanmar | 4LHA-STP | 4-Stroke | 129472-13520 | Discount Marine Source fitment |
| Yanmar | 3TNE84 | 4-Stroke | 129472-13520 | Industrial application |
| Yanmar | 4TNE106 | 4-Stroke | 129472-13520 | Industrial application |
| Yanmar | 3TNV84T | 4-Stroke | 129472-13520 | Industrial application |
| Yanmar | 4TNV84T | 4-Stroke | 129472-13520 | Industrial application |
Technical Specs
- Product Type
- Turbine Out/Exhaust Elbow Gasket
- Installation
- Between turbocharger and exhaust elbow
- Dimensions
- 10.0 in x 10.0 in x 3.0 in
- Weight
- 0.3 lb (0.14 kg)
- Applications
- Turbocharged marine and industrial diesel engines
What’s in the Box
- 1 x Turbine Out Gasket (129472-13520)
Installation Notes
- Ensure the engine is completely cool and the battery is disconnected before starting.
- Locate and access the joint between the turbocharger and the exhaust elbow.
- Carefully remove the mounting hardware and separate the components.
- Remove the old gasket and thoroughly clean any residue from both mating surfaces to ensure a perfect seal.
- Position the new gasket, making sure it aligns correctly with the bolt holes.
- Reassemble the exhaust elbow to the turbocharger and tighten all fasteners to the manufacturer-specified torque in a star pattern.
Troubleshooting & FAQ
How do I confirm this gasket will fit my Yanmar engine?
The most reliable method is to match your engine's model number against the compatibility list provided on this page. Also, visually compare the gasket shape in the product photos to your old part before ordering.
What are common signs of a failed turbo to exhaust elbow gasket?
Symptoms of a leak in this area include a noticeable exhaust (soot) leak around the connection, an audible whistling or hissing sound that changes with engine RPM, and a potential loss of turbo boost or engine power.
Can I reuse my old gasket?
No. This type of gasket is a single-use, crush-style seal. Once it has been installed and compressed, it will not seal properly if reinstalled. Always use a new gasket when servicing the joint.
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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
