Cylinder Head Gasket – Fits Yamaha 200-225HP Outboards (Replaces 6AW-11181-00-00)
Cylinder Head Gasket – Fits Yamaha 200-225HP Outboards (Replaces 6AW-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 200-225HP Outboards (Replaces 6A...
Product Details
This aftermarket Cylinder Head Gasket is designed for Yamaha V6 4-Stroke 200-225 HP outboard engines manufactured between 2006 and 2024. It ensures a precise, leak-free seal for the port side (stator) cylinder head, restoring engine integrity and performance.
This part is a direct interchange for Yamaha part number 6AW-11181-00-00 and EMP part 27-00645.
- Engineered for direct OEM replacement fit.
- Specifically designed for the port side (Stbd) cylinder head.
- Made from durable metal/composite materials suitable for marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6AW-11181-00-00 |
| EMP | 27-00645 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha engines, ensure your model falls within the V6 4-Stroke series with the specified horsepower and year range.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | V6 4-Stroke | 200 | 4-Stroke | 2006–2024 | 6AW-11181-00-00 | Port side cylinder head gasket |
| Yamaha | V6 4-Stroke | 225 | 4-Stroke | 2006–2024 | 6AW-11181-00-00 | Port side cylinder head gasket |
Technical Specs
- Product Type
- Cylinder Head Gasket
- Installation
- Direct OEM replacement
- Fuel Type
- Gasoline
- Housing Material
- Metal/Composite
- Dimensions
- 0.5 in x 29.0 in x 64.0 in
- Other Technical Attributes
- Port side (Stbd) cylinder head gasket
What’s in the Box
- 1 x Gasket, Cylinder Head (6AW-11181-00-00)
Installation Notes
- Disconnect the battery and relieve fuel system pressure.
- Drain the engine coolant and oil completely.
- Remove interfering components such as the intake manifold, exhaust manifold, and valve cover.
- Loosen and remove the cylinder head bolts in the reverse order of the manufacturer's specified tightening sequence.
- Carefully lift the cylinder head off the engine block.
- Remove the old gasket and thoroughly clean both the cylinder head and engine block mating surfaces. Ensure they are flat, dry, and free of any old gasket material, oil, or debris.
- Position the new gasket correctly on the engine block, checking for proper alignment with any dowel pins.
- Carefully place the cylinder head back onto the block without dislodging the gasket.
- Install and torque the head bolts in the sequence and to the torque/angle specifications recommended by the engine manufacturer's service manual.
- Reassemble all previously removed components in the reverse order of removal.
- Refill the engine with fresh coolant and oil to the proper levels.
- Reconnect the battery, start the engine, and carefully inspect for any coolant, oil, or exhaust leaks as the engine warms up.
Troubleshooting & FAQ
How do I know if my cylinder head gasket is failing?
Common signs include engine overheating, white smoke from the exhaust (indicating coolant burn), milky or frothy engine oil (coolant contamination), or a visible external coolant or oil leak from the seam between the cylinder head and engine block.
Is this gasket for the port or starboard side?
This gasket is specifically designed for the port side (Stbd) cylinder head. A different part number is required for the starboard side.
Does this gasket require any additional sealant?
No, this gasket is designed to be installed dry. Do not use any sealants or adhesives unless explicitly instructed by your engine's service manual, as this can cause an improper seal and lead to premature failure.
When should a cylinder head gasket be replaced?
Cylinder head gaskets are typically only replaced when they fail or during a complete engine overhaul. There is no standard service interval for replacement under normal operating conditions.
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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