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Gasket, Head Cover 2 – Fits Yamaha 200–300 HP V6 4-Stroke Outboards (Replaces 6P2-11194-00-00)

Sale price $35.89 Regular price $57.00
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Gasket, Head Cover 2 – Fits Yamaha 200–300 HP V6 4-Stroke Outboards (Replaces 6P2-11194-00-00) is backordered and will ship as soon as it is back in stock.


Worry-free returns

You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Delivery and Shipping

Free standard shipping on all orders under 1 KG

If you have any questions, feel free to email us at info@sierramarines.com, and we’ll get back to you within 20–36 hours.

Product Details

This Gasket, Head Cover 2 ensures a perfect seal for the port (left) side valve cover on Yamaha 200–300 HP V6 4-stroke outboard motors manufactured between 2005 and 2021. Engineered to meet original equipment standards, it prevents oil leaks and maintains engine integrity.

It serves as a direct replacement for Yamaha OEM part number 6P2-11194-00-00.

  • Installation Location: Port (Left) Side Valve Cover
  • Material: Built to OEM Material Specifications
  • Primary Function: Seals the cylinder head cover to prevent oil leaks

Part Number Matrix

Use this matrix to confirm equivalent references across OEM and aftermarket.

Brand Part Number
Yamaha 6P2-11194-00-00

Engine & Model Compatibility

Confirm your engine model/year in the table below.

This part is designed exclusively for specific Yamaha V6 4-Stroke outboard models. Please check your engine details carefully.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha F200 200 4-Stroke 2012–2021 6P2-11194-00-00 Port side valve cover
Yamaha F225 225 4-Stroke 2008–2021 6P2-11194-00-00 Port side valve cover
Yamaha F250 250 4-Stroke 2005–2021 6P2-11194-00-00 Port side valve cover
Yamaha F300 300 4-Stroke 2005–2021 6P2-11194-00-00 Port side valve cover

Technical Specs

Product Type
Valve Cover Gasket
Installation
Port (Left) Side
Material
OEM Specification
Application
Cylinder Head Cover Seal
Dimensions
40.5 cm (L) x 18.4 cm (W) x 0.8 cm (H)
OEM Part Number
6P2-11194-00-00
Replacement For
Cylinder Head Cover 2
Country of Origin
Japan

What’s in the Box

  • 1 x Gasket, Head Cover 2 (6P2-11194-00-00)

Installation Notes

  1. Ensure the engine is cool and disconnect the battery for safety.
  2. Thoroughly clean the area around the head cover to prevent debris from falling into the cylinder head.
  3. Remove any components obstructing access to the cover, such as ignition coils.
  4. Loosen and remove the head cover bolts in the sequence specified by your engine’s service manual.
  5. Carefully lift the cover. If it is stuck, tap it gently with a rubber mallet to free it. Do not pry.
  6. Remove the old gasket and meticulously clean all residue from the cover and the cylinder head seating surfaces.
  7. Press the new gasket firmly into the groove on the head cover, ensuring it is properly seated all the way around.
  8. Place the cover back onto the head and tighten the bolts finger-tight.
  9. Using a torque wrench, tighten the bolts to the manufacturer-specified torque in the correct sequence.
  10. Reinstall all previously removed components, reconnect the battery, and start the engine to check for any oil leaks.

Troubleshooting & FAQ

How do I know if this is the correct gasket for my Yamaha outboard?

This gasket is for the port (left) side valve cover on Yamaha 200–300 HP V6 4-stroke models from 2005–2021. Always verify your OEM part number is 6P2-11194-00-00 and check the compatibility table to confirm fitment for your specific model and year.

What are the signs of a failed head cover gasket?

Common signs include visible oil leaks around the valve cover, a burning oil smell from the engine bay, or a low engine oil level without other obvious causes. A thorough inspection will confirm the source of the leak.

Is this gasket for the port or starboard side?

This specific part, replacing 6P2-11194-00-00, is designed for the port (left) side only. A different part number is required for the starboard (right) side.

Does this gasket require additional sealant upon installation?

Generally, modern form-in-place gaskets like this do not require extra sealant. However, we strongly recommend consulting your engine’s official service manual for specific instructions, as sealant may be required at certain points (like T-joints).

When should a valve cover gasket be replaced?

Valve cover gaskets do not have a fixed service interval. They should be replaced whenever the valve cover is removed for service (e.g., valve adjustment) or as soon as a leak is detected.

What’s the difference between an OEM and an aftermarket part?

This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Our parts are manufactured in an ISO 9002 facility and are batch-inspected for quality and consistency.

How much is shipping and how fast will I get my order?

We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free for most orders. Expedited shipping options, if available for your location, will be presented at checkout.

What is your warranty and return policy?

This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter an issue, please contact our support team with your order details. Returns are accepted within our standard window, provided the item is unused and in its 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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