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Power Head Gasket Kit – Fits Yamaha Outboards (67F-W0001-00-00)

Regular price $447.66
Shipping calculated at checkout.

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 Power Head Gasket Kit provides a comprehensive solution for overhauling the cylinder head on select Yamaha 2-Stroke marine outboard engines. It is designed to meet or exceed original equipment specifications, ensuring a reliable seal and restoring engine performance.

This kit serves as a direct replacement for Yamaha OEM part number 67F-W0001-00-00.

  • Engineered for installation to OEM specifications.
  • Contains all necessary gaskets and seals for a complete cylinder head overhaul.
  • Designed for use with gasoline-fueled marine engines.

Part Number Matrix

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

Brand Part Number Notes
Yamaha 67F-W0001-00-00 OEM

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke Years OEM Part No. Notes
Yamaha 2-Stroke 67F-W0001-00-00 Complete power head gasket kit

Technical Specs

Product Type
Power Head Gasket Kit
Installation
OEM Specification
Fuel Type
Gasoline
Dimensions
Length: 43.5, Width: 23.5, Height: 4.0
Warranty
Manufacturer Standard
Other Technical Attributes
Complete head gasket kit for cylinder head overhaul

What’s in the Box

  • 1 x O-Ring (93210-24M79-00)
  • 1 x Gasket (90430-08143-00)
  • 1 x Cylinder Seal (67F-11356-00-00)
  • 1 x O-Ring (93210-41MJ2-00)
  • 1 x Gasket, Exhaust Outer Cover (67F-41114-A0-00)
  • 1 x Oil Seal (93101-48M64-00)
  • 1 x Cylinder Head Gasket (67F-11181-00-00)
  • 1 x Oil Seal (93102-48M55-00)
  • 1 x Gasket (90430-14115-00)
  • 1 x O-Ring (93210-30682-00)
  • 1 x Sender Unit Gasket (67F-85753-00-00)
  • 1 x Gasket (67F-12435-A0-00)
  • 1 x Oil Seal (93102-38M54-00)
  • 1 x O-Ring (93210-19MJ3-00)
  • 1 x Manifold Gasket (67F-13645-00-00)
  • 1 x Cylinder Gasket (67F-11351-00-00)

Installation Notes

  1. Disconnect the battery and ensure the engine is cool.
  2. Drain the engine coolant and oil completely.
  3. Carefully remove the manifolds, valve cover, and any other components obstructing the cylinder head.
  4. Loosen and remove the cylinder head bolts in the reverse order specified by the manufacturer's service manual.
  5. Lift the cylinder head off the engine block.
  6. Thoroughly clean all mating surfaces on both the head and the block, removing all old gasket material and debris.
  7. Position the new head gasket correctly on the block. Do not use sealant unless explicitly required by the service manual.
  8. Carefully place the cylinder head back onto the block.
  9. Install and torque the head bolts in the sequence and to the specifications outlined in your service manual. This is a critical step.
  10. Reinstall all other components, replacing any other gaskets from the kit as you go.
  11. Refill the engine with new oil and coolant.
  12. Reconnect the battery, start the engine, and carefully check for any leaks (oil, coolant, or exhaust).

Troubleshooting & FAQ

How do I confirm this kit fits my engine?

The most reliable method is to cross-reference the OEM part number 67F-W0001-00-00 with the number specified in your engine's service manual or parts diagram. While this kit is made for certain Yamaha 2-Stroke outboards, model and year specifics are critical.

What are common signs of a failing head gasket?

Symptoms include engine overheating, a loss of power or compression, water or coolant in the engine oil (giving it a milky appearance), or white smoke coming from the exhaust after the engine has warmed up.

Do I need to use sealant with these gaskets?

Generally, these gaskets are designed to be installed dry. Always follow the specific instructions in your engine's official service manual. Applying sealants where not required can cause improper sealing and potential engine damage.

Why is the bolt torque sequence so important?

The torque sequence and specifications ensure that pressure is applied evenly across the cylinder head, creating a perfect seal. Failure to follow the correct procedure can lead to a warped head, gasket failure, and severe engine damage.

Is this kit complete for a full cylinder head overhaul?

Yes, this kit includes all the primary gaskets and seals required for removing and reinstalling the power head. Please review the "What's in the Box" section for a detailed list of all included part numbers to ensure it matches your project's needs.

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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