Cylinder Head Gasket – Fits Yanmar 3HM35 Marine Engines (Replaces 128671-01330)
Cylinder Head Gasket – Fits Yanmar 3HM35 Marine Engines (Replaces 128671-01330) 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
Cylinder Head Gasket – Fits Yanmar 3HM35 Marine Engines (Replaces 1...
Product Details
This high-quality aftermarket Cylinder Head Gasket – Fits Yanmar 3HM35 Marine Engines provides a reliable, precision-cut seal between the cylinder head and the engine block. It is engineered for Yanmar 3HM35 series marine diesel engines to maintain proper compression and prevent fluid leaks.
It serves as a direct replacement for Yanmar part number 128671-01330.
- Designed for direct OEM-spec fitment.
- Resists degradation from diesel fuel and engine oil.
- Made from durable composite material for a lasting seal.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yanmar | 128671-01330 | OEM Reference |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Stroke | OEM Part No. | Notes |
|---|---|---|---|---|
| Yanmar | 3HM35 | 4-Stroke | 128671-01330 | Marine diesel engine |
| Yanmar | 3HM35C | 4-Stroke | 128671-01330 | Marine diesel engine |
| Yanmar | 3HM35F | 4-Stroke | 128671-01330 | Marine diesel engine |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct replacement
- Fuel Type
- Diesel
- Housing Material
- Composite material
- Product Dimensions
- 17" L x 32" W x 0.4" H
- Other Technical Attributes
- Designed to OEM specifications for optimal compression and seal
What’s in the Box
- 1 x Cylinder Head Gasket (128671-01330)
Installation Notes
- Ensure the engine is cool and disconnected from power. Drain the coolant completely.
- Disconnect components attached to the cylinder head, such as manifolds, fuel lines, and wiring.
- Loosen and remove the cylinder head bolts in the reverse sequence specified by the manufacturer's service manual.
- Carefully lift the cylinder head off the engine block. Avoid using pry bars that could damage the mating surfaces.
- Thoroughly clean both the cylinder head and engine block surfaces, removing all old gasket material and carbon deposits.
- Check both mating surfaces for flatness using a straightedge; machine if warped beyond service limits.
- Position the new head gasket correctly on the engine block, ensuring proper orientation.
- Carefully lower the cylinder head back into place without dislodging the gasket.
- Install and tighten the head bolts in the specified sequence and torque stages according to your engine's service manual.
- Reconnect all components, refill with fresh coolant, and inspect for leaks after starting the engine.
Troubleshooting & FAQ
How do I know if my head gasket needs replacing?
Common symptoms of a failed head gasket include engine overheating, white smoke from the exhaust (burning coolant), milky or foamy engine oil, unexplained coolant loss, or poor engine performance due to loss of compression.
Is this gasket compatible with the Yanmar 3HM35F?
Yes, this cylinder head gasket is specified as a direct replacement for the OEM part used on Yanmar 3HM35, 3HM35C, and 3HM35F marine diesel engines.
Do I need to apply sealant when installing this gasket?
No. This gasket is designed to be installed dry. The composite materials create a seal when compressed. Applying extra sealant can interfere with proper seating and cause premature failure. Always follow the engine manufacturer's guidelines.
What causes a head gasket to fail?
The most common cause is engine overheating, which can cause the cylinder head to warp and compromise the seal. Other causes include improper installation, incorrect bolt torque, or engine detonation (knocking).
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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