Exhaust Manifold Gasket – Fits Yanmar 3JH Series Marine Diesel Engines (Replaces 129150-13110)
Exhaust Manifold Gasket – Fits Yanmar 3JH Series Marine Diesel Engines (Replaces 129150-13110) 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 Manifold Gasket – Fits Yanmar 3JH Series Marine Diesel Engi...
Product Details
This high-quality Exhaust Manifold Gasket is engineered to fit a wide range of Yanmar 3JH Series marine diesel engines, including the 3JH25A, 3JH30A, 3JH3E, 3JH4E, and 3JH5E models. It is fully compatible with both main and auxiliary engine applications, ensuring a reliable seal for the exhaust manifold connection.
This part is a direct replacement for Yanmar OEM part number 129150-13110.
- Installation Method: Direct replacement
- Primary Application: Used on exhaust manifold connection
- Engine Fuel Type: Diesel
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 129150-13110 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is designed for a broad range of Yanmar engines. Verify your specific model for an exact match.
| Brand | Model | Rated HP | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|---|
| Yanmar | 3JH25A | 25 | 4-Stroke | 129150-13110 | Used on fresh water cooler, keel cooler spec |
| Yanmar | 3JH30A | 30 | 4-Stroke | 129150-13110 | Used on fresh water cooler, keel cooler spec |
| Yanmar | 3JH2 | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH2-TE | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH2BE | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH2TBE | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH3E | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH3E-YEU-E | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH4E | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH5E | 4-Stroke | 129150-13110 | ||
| Yanmar | 3JH5AE | 4-Stroke | 129150-13110 | ||
| Yanmar | 3TNV88F | 4-Stroke | 129150-13110 | ||
| Yanmar | 3GM30F | 4-Stroke | 129150-13110 | ||
| Yanmar | 3TNE84 | 4-Stroke | 129150-13110 | ||
| Yanmar | 3TNV88-BDSA | 4-Stroke | 129150-13110 | ||
| Yanmar | 3TNV88 | 4-Stroke | 129150-13110 | ||
| Yanmar | 3TN84L | 4-Stroke | 129150-13110 | ||
| Yanmar | 3TN84 | 4-Stroke | 129150-13110 |
Technical Specs
- Product Type
- Exhaust Manifold Gasket
- Installation
- Direct replacement
- Fuel Type
- Diesel
- Dimensions
- 22.5" L x 7.0" W x 0.1" H
- Other Technical Attributes
- Used on exhaust manifold connection
What’s in the Box
- 1 x Gasket, Exhaust Manifold (129150-13110)
Installation Notes
- Ensure the engine is completely cool and the battery is disconnected before starting work.
- Carefully remove the exhaust manifold, taking note of all connected components and fasteners.
- Thoroughly clean both the cylinder head and manifold mating surfaces. Remove all old gasket material and carbon buildup.
- Position the new gasket correctly, ensuring all bolt holes align perfectly.
- Reinstall the exhaust manifold and tighten the fasteners to the manufacturer's specified torque sequence and values.
- Reconnect any other components and the battery, then start the engine to check for exhaust leaks.
Troubleshooting & FAQ
What are the signs of a failing exhaust manifold gasket?
Common symptoms include a ticking or hissing sound from the engine bay (especially when cold), decreased engine performance, poor fuel economy, and the smell of exhaust fumes inside the cabin or cockpit.
Will this gasket fit my Yanmar 3GM30F engine?
Yes, this gasket is listed as compatible with the Yanmar 3GM30F model. However, always double-check the part number and visual appearance against your old part before installation.
The notes for my 3JH30A engine mention "fresh water cooler spec." Is this the right gasket?
Yes. This part is primarily the exhaust manifold gasket, but on certain engine configurations like the 3JH30A with keel cooling, it also serves as a gasket for the cooler housing where it connects to the manifold assembly. It is the correct part for this application.
How often should this gasket be replaced?
Gaskets should be inspected during routine engine maintenance and replaced whenever the exhaust manifold is removed. There is no fixed replacement interval; replace it at the first sign of a leak to prevent further damage.
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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