Cylinder Head Gasket – Fits Yamaha Outboard Engines (Replaces 6BG-11181-00-00)
Cylinder Head Gasket – Fits Yamaha Outboard Engines (Replaces 6BG-11181-00-00) 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 Yamaha Outboard Engines (Replaces 6BG-1...
Product Details
This is an OEM-quality Cylinder Head Gasket – Fits Yamaha Outboard Engines, designed to provide a reliable seal between the cylinder head and the engine block. It is engineered for specific Yamaha outboard models, ensuring proper fit and function for engine service and rebuilds.
This part is a direct replacement for Yamaha OEM part number 6BG-11181-00-00.
- Installation Type: Engine Service Part
- Material: Genuine Yamaha OEM Part
- Fuel Compatibility: Gasoline
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6BG-11181-00-00 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This appears to be a specialized OEM Yamaha part for certain Yamaha outboard engine models. The part is listed as "Gasket, cylinder head 1" in the Yamaha parts catalogs. As specific engine models are not provided, please verify compatibility by matching the OEM part number 6BG-11181-00-00 with your engine's official service manual.
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Engine Service Part
- Fuel Type
- Compatible with Gasoline
- Housing Material
- OEM Gasket Material
- Dimensions
- 29.0" L x 16.5" W x 0.5" H
- Other Technical Attributes
- Genuine Yamaha OEM Part
What’s in the Box
- 1 x Gasket, cylinder head 1 (6BG-11181-00-00)
Installation Notes
- Disconnect the battery and relieve any fuel system pressure as per safety protocols.
- Drain the engine's cooling system completely.
- Remove components obstructing access to the cylinder head, such as covers, manifolds, and wiring.
- Loosen and remove the cylinder head bolts in the reverse order of the tightening sequence specified in your service manual.
- Carefully lift the cylinder head from the engine block. Avoid using pry tools that could damage the mating surfaces.
- Thoroughly clean all old gasket material, sealant, and residue from both the engine block and cylinder head surfaces.
- Position the new head gasket correctly on the engine block, ensuring it aligns with all dowels and passages.
- Gently lower the cylinder head back onto the gasket and block.
- Install new or inspected head bolts and tighten them in the correct sequence and to the precise torque specifications found in the official Yamaha service manual for your engine.
- Reassemble all previously removed components.
- Refill the cooling system, reconnect the battery, and start the engine to check for any leaks or operational issues.
Troubleshooting & FAQ
How do I confirm this gasket fits my specific Yamaha engine?
The most reliable method is to check the part number (6BG-11181-00-00) against the parts list in your engine's official service or repair manual. Since specific models are not listed, verifying the part number is essential for ensuring compatibility.
What are the common signs of a failed head gasket?
Symptoms of a bad head gasket include engine overheating, white smoke from the exhaust (indicating burning coolant), milky or frothy-looking engine oil, loss of power and compression, or coolant bubbling in the reservoir.
Should I use sealant with this gasket?
Most modern head gaskets are designed for dry installation. Unless your official Yamaha service manual explicitly instructs you to use a sealant for your specific model, you should not apply any. Using sealant when not required can lead to an improper seal.
When does a head gasket need to be replaced?
A head gasket is not a regular maintenance item. It is typically only replaced if it has failed or during a major engine overhaul that requires removing the cylinder head.
Is this a multi-layer steel (MLS) gasket?
This is a genuine OEM part described as having "OEM Gasket Material." The exact composition is designed by Yamaha to create a perfect seal for the intended engine applications, whether it is MLS or another composite material.
Can I reuse my old head bolts?
It is strongly recommended to use new cylinder head bolts during installation. Many are torque-to-yield (TTY) bolts that stretch permanently when tightened and can fail if reused. Always consult your service manual for guidance.
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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