Yanmar Bonnet Gasket 119718-11310 – Fits Yanmar 3TNV76 Engines
Yanmar Bonnet Gasket 119718-11310 – Fits Yanmar 3TNV76 Engines is backordered and will ship as soon as it is back in stock.
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Yanmar Bonnet Gasket 119718-11310 – Fits Yanmar 3TNV76 Engines
Product Details
This OEM-quality Yanmar Bonnet Gasket 119718-11310 is designed for a precise fit on Yanmar 3TNV76 series industrial diesel engines. It creates a durable seal between the cylinder head and the valve cover (bonnet) to prevent oil leaks and maintain proper engine compression.
It serves as a direct replacement for Yanmar part numbers 119718-11310, YM119718-11310, and Komatsu YM119718-11310.
- Installs directly to the cylinder head/valve cover joint.
- Condition: New
- Origin: Germany
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yanmar | 119718-11310 |
| Yanmar | YM119718-11310 |
| Komatsu | YM119718-11310 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This part is designed for Yanmar 3TNV76 series engines.
| Brand | Model | Stroke | OEM Part No. |
|---|---|---|---|
| Yanmar | 3TNV76-CKE | 4-Stroke | 119718-11310 |
| Yanmar | 3TNV76-CPE | 4-Stroke | 119718-11310 |
| Yanmar | 3TNV76-CSA3 | 4-Stroke | 119718-11310 |
Technical Specs
- Product Type
- Valve Cover Gasket (Bonnet Gasket)
- Installation
- Direct fit to cylinder head/valve cover joint
- Dimensions
- 14.5″ L x 12.6″ W x 0.4″ H
- Condition
- New
- Origin
- Germany (per manufacturer)
- Applications
- Yanmar 3TNV76 Series Industrial Engines
What’s in the Box
- 1x Gasket, Bonnet (119718-11310)
Installation Notes
- Ensure the engine is cool and disconnected from power.
- Remove the old valve cover (bonnet) and gasket.
- Thoroughly clean both the cylinder head and valve cover surfaces. Remove all old gasket material, oil, and debris.
- Place the new 119718-11310 gasket onto the cylinder head, aligning it with the bolt holes.
- Reinstall the valve cover and tighten the bolts in the sequence and to the torque specified by the manufacturer.
- Reconnect power and check for any oil leaks after running the engine briefly.
Troubleshooting & FAQ
How do I know if this is the correct gasket for my engine?
This bonnet gasket is specifically for Yanmar 3TNV76 series engines. Please verify your engine model number. You can also cross-reference the part numbers 119718-11310 and YM119718-11310 with your existing part.
What are the signs of a faulty valve cover gasket?
Common symptoms include visible oil leaking from the top of the engine, a burning oil smell, low engine oil levels, and a rough-running engine due to loss of compression.
Is any sealant required during installation?
Generally, this type of gasket is designed to be installed dry. However, always consult your engine's service manual for specific instructions, as a small amount of sealant may be recommended at joint corners.
Is this an OEM or aftermarket part?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, with batch inspections 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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