Oil Pan Gasket – Fits Yanmar 3JH2, 3JH2-BE, 3JH2-E, 3JH2-Z (Replaces 129198-01750)
Oil Pan Gasket – Fits Yanmar 3JH2, 3JH2-BE, 3JH2-E, 3JH2-Z (Replaces 129198-01750) 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
Oil Pan Gasket – Fits Yanmar 3JH2, 3JH2-BE, 3JH2-E, 3JH2-Z (Replace...
Product Details
This OEM-quality Oil Pan Gasket – Fits Yanmar 3JH2, 3JH2-BE, 3JH2-E, 3JH2-Z (Replaces 129198-01750) provides a reliable seal for Yanmar marine diesel engines. It is specifically designed for 3JH2 series models, including the standard, BE, E, and Z variants, ensuring a precise fit.
This part is a direct replacement for OEM part number 129198-01750.
- Engineered for direct replacement installation.
- Designed for use in marine diesel engine environments.
- Includes one gasket as pictured.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 129198-01750 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Yanmar | 3JH2 | 4-Stroke | 129198-01750 | Base model |
| Yanmar | 3JH2-BE | 4-Stroke | 129198-01750 | |
| Yanmar | 3JH2-E | 4-Stroke | 129198-01750 | |
| Yanmar | 3JH2-Z | 4-Stroke | 129198-01750 |
Technical Specs
- Product Type
- Oil Pan Gasket
- Installation
- Direct replacement
- Dimensions
- Length: 40.5 cm, Width: 23.0 cm, Height: 0.1 cm
- Weight
- 0.01 kg (10 g)
- OEM Part Number
- 129198-01750
What’s in the Box
- 1 x Oil Pan Gasket (129198-01750)
Installation Notes
- Ensure the engine is off and cool. Disconnect the battery and place drip pans under the engine.
- Drain the engine oil completely by removing the drain plug from the oil pan.
- Carefully unbolt and remove the old oil pan. You may need to gently pry it loose.
- Thoroughly clean both the engine block and the oil pan mating surfaces. Remove all old gasket material and residue.
- Position the new gasket on the cleaned oil pan, aligning it with the bolt holes.
- Re-install the oil pan, tightening the bolts in a crisscross pattern to the manufacturer's recommended torque specifications to ensure an even seal.
- Replace the drain plug, refill the engine with new oil, and reconnect the battery.
- Start the engine and check for any leaks around the oil pan.
Troubleshooting & FAQ
How do I know if this gasket will fit my engine?
This gasket is specifically for Yanmar 3JH2 series engines, including 3JH2, 3JH2-BE, 3JH2-E, and 3JH2-Z. Please verify your engine model and cross-reference the OEM part number 129198-01750 before ordering.
What are the signs of a failing oil pan gasket?
Common signs include visible oil leaks or drips under the engine, low engine oil levels without another cause, and oily residue on the outside of the oil pan. A clean engine bay makes spotting fresh leaks easier.
Can I reuse my old oil pan bolts?
It is generally acceptable to reuse old bolts if they are in good condition (not stretched, corroded, or damaged). However, always clean the threads and apply thread locker if specified by the engine service manual. Ensure they are torqued to the correct specification.
Is any sealant required with this gasket?
This gasket is designed to be installed dry. Unless explicitly required by your Yanmar service manual for specific corner points, do not use additional sealants, as they can sometimes interfere with proper sealing.
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
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