Stainless Steel Exhaust Elbow – Fits Yanmar 4JH Series (Replaces 129792-13552)
Stainless Steel Exhaust Elbow – Fits Yanmar 4JH Series (Replaces 129792-13552) 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
Free standard shipping on all orders under 1 KG
Stainless Steel Exhaust Elbow – Fits Yanmar 4JH Series (Replaces 12...
Product Details
This premium Stainless Steel Exhaust Elbow – Fits Yanmar 4JH Series (Replaces 129792-13552) is precision-engineered for Yanmar 4JH series diesel engines (1995–2008), including models like the 4JH-TE, 4JH2-DTE, and 4JH3-T. It provides superior corrosion resistance and efficient exhaust flow compared to standard cast iron parts.
It serves as a direct replacement for Yanmar part numbers 129792-13552, 129792-13551, 129792-13550, 129671-13551, 129579-13551, and others.
- Designed for direct bolt-on installation.
- Constructed from investment-cast 316 stainless steel for maximum durability.
- Ensures proper water mixing to reduce engine noise and emissions.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 129792-13552 |
| Yanmar | 129792-13551 |
| Yanmar | 129792-13550 |
| Yanmar | 129671-13551 |
| Yanmar | 129579-13551 |
| HDI Marine | L3P |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This elbow fits a wide range of Yanmar 4JH series engines produced between approximately 1995 and 2008.
| Brand | Model | Stroke | Years | OEM Part No. |
|---|---|---|---|---|
| Yanmar | 4JH-TE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-DTE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-HTE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH2-TE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH2-HTE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH2-DTE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH2-UTE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-T | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-TZ | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-TZA | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-HTZ | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-HTZA | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-HTZY | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-DTZ | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-DTZP | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-DTZA | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-DTZY | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-TZAE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-HTZAE | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-TZAY | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH-TZ2 | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH2-ETB | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH2-DTZ | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-T1 | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-TZA | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-TZAY | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-HTZ1 | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-HTZA | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-HTZY1 | 4-Stroke | 1995–2008 | 129792-13552 |
| Yanmar | 4JH3-HTZAY | 4-Stroke | 1995–2008 | 129792-13552 |
Technical Specs
- Product Type
- Marine Exhaust Elbow
- Installation
- Direct replacement
- Fuel Type
- Diesel
- Connection
- Bolt-on flange
- Housing Material
- INOX (316 Stainless Steel)
- Housing Color
- Silver/Metallic
- Dimensions
- Length: 23.0 cm, Width: 16.0 cm, Height: 12.0 cm
- Weight
- 1.98 kg (4.37 lb)
- Fitting Type
- Flanged with bolt holes
- Water Inlet
- 1" (25.4 mm)
- Outlet Diameter
- 3" (76.2 mm)
- Warranty
- 3 years
- Other Attributes
- Investment cast using lost wax technique, precision CNC machined, galvanized coating for additional protection
What’s in the Box
- 1 x Stainless Steel Exhaust Elbow (MAR129792-13552INOX)
Note: Mounting gasket (Yanmar 129472-13520) is not included and must be purchased separately.
Installation Notes
- Ensure the engine is completely cool and the battery is disconnected.
- Drain the exhaust system and close the relevant seacocks.
- Carefully remove the nuts and bolts securing the old exhaust elbow, along with any connected hoses.
- Thoroughly clean the mating surface on the exhaust manifold, removing all old gasket material and corrosion.
- Position a new gasket (sold separately) on the manifold.
- Mount the new stainless steel elbow, hand-tightening the nuts to ensure even seating.
- Torque the nuts to the manufacturer's specified values using a crisscross pattern. Do not overtighten.
- Reconnect the water and exhaust hoses, ensuring all clamps are secure.
- Open seacocks, reconnect the battery, and start the engine. Check immediately for any water or exhaust leaks.
Troubleshooting & FAQ
Does this elbow fit my specific Yanmar engine?
This part is designed for the Yanmar 4JH series from 1995–2008. Please consult the 'Engine & Model Compatibility' table and cross-reference your engine's model number. Verifying against the OEM part number and product photos is the best way to ensure a correct fit.
What are the signs that my current exhaust elbow needs replacement?
Common failure symptoms include water leaks (especially when cooling down), rust streaks on the outside of the elbow, engine overheating, reduced engine performance, or an increase in steam from the exhaust outlet. A physical inspection may reveal cracks, blockages, or severe corrosion.
What's the advantage of stainless steel over the original cast iron?
316 stainless steel offers significantly better resistance to corrosion from hot, acidic exhaust gases and saltwater. This leads to a much longer service life compared to the stock cast iron elbows, which are prone to rusting through and causing catastrophic water intrusion into the engine.
Do I need to replace the gasket during installation?
Yes, it is critical to use a new mounting gasket (Yanmar part #129472-13520) to ensure a proper, leak-free seal. The gasket is not included with this elbow and must be purchased separately.
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 3-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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