• Free shipping

  • Free help & advice

  • Hassle-free returns

  • Factory direct prices

Flash Sale now on!

FLASHSALE25

Oil Drain Plug Gasket –_Fits Yamaha Outboard 4-Stroke (Replaces Yamaha 90430-14M09-00, 90430-14228-00)

Regular price $2.50
Shipping calculated at checkout.

Oil Drain Plug Gasket –_Fits Yamaha Outboard 4-Stroke (Replaces Yamaha 90430-14M09-00, 90430-14228-00) 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 is a high-quality oil drain plug gasket designed to fit a range of Yamaha Outboard 4-Stroke engines, including popular models such as the F80, F100, F115, and F150. It ensures a perfect seal to prevent oil leaks and maintain engine integrity. The **Oil Drain Plug Gasket – Fits Yamaha Outboard 4-Stroke Engines (Replaces 90430-14M09-00)** is manufactured to meet or exceed original equipment specifications.

It serves as a direct replacement for OEM part numbers 90430-14M09-00 and 90430-14228-00, offering a reliable and cost-effective alternative for routine maintenance.

  • Engineered for direct replacement installation.
  • Constructed from premium OEM-specified gasket material.
  • Designed specifically for engine oil drain plug applications.

Part Number Matrix

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

Brand Part Number Notes
Yamaha 90430-14M09-00 Primary OEM part number
Yamaha 90430-14228-00 Interchangeable/Superseded part number

Engine & Model Compatibility

Confirm your engine model/year in the table below.

Brand Model Rated HP Stroke OEM Part No. Notes
Yamaha F80 80 4-Stroke 90430-14M09-00
Yamaha F100 100 4-Stroke 90430-14M09-00
Yamaha F115 115 4-Stroke 90430-14M09-00 / 90430-14228-00 Alternative part numbers
Yamaha F150 150 4-Stroke 90430-14M09-00 / 90430-14228-00 Alternative part numbers
Yamaha Various 4-Stroke models Various 4-Stroke 90430-14M09-00 / 90430-14228-00 Confirm exact model fit

Technical Specs

Product Type
Oil Drain Plug Gasket
Installation
Direct replacement
Material
OEM-specified gasket material
Color
Brown
Application
Engine oil drain plug
OEM Part Numbers
90430-14M09-00, 90430-14228-00
Warranty
Standard manufacturer warranty
Other Technical Attributes
Genuine Yamaha Marine part

What’s in the Box

  • 1 x Oil Drain Plug Gasket (90430-14M09-00)

Installation Notes

  1. Position a suitable oil drain pan under the engine's lower unit.
  2. Locate and remove the oil drain plug using the correct size wrench.
  3. Carefully remove the old gasket from the drain plug. Clean any residue from the plug and the engine case mating surface.
  4. Place the new gasket onto the drain plug.
  5. Reinstall the drain plug and tighten it to the manufacturer's recommended torque specification. Do not overtighten.
  6. Refill the engine with the specified type and amount of oil.
  7. Start the engine and check for any leaks around the drain plug.

Troubleshooting & FAQ

How do I confirm this gasket fits my engine?

The best method is to compare the part number (90430-14M09-00 or 90430-14228-00) with your service manual or the original part. While we list common compatible models like the F80, F100, F115, and F150, always verify the part number for your specific engine year and model.

What are the signs of a failing oil drain plug gasket?

The most common sign is an oil leak or drip from the drain plug area. You may notice an oily film on the lower unit or oil spots on the ground where the engine is stored. A crushed or brittle gasket should be replaced immediately.

Is it necessary to replace the gasket at every oil change?

Yes, it is highly recommended. The gasket is a single-use crush washer designed to deform and create a perfect seal when torqued. Reusing an old gasket significantly increases the risk of an oil leak.

Can I reuse my old oil drain plug gasket?

No. These gaskets are designed to be crushed once to form a tight seal. Reusing a gasket will likely result in an improper seal and an oil leak, which could lead to engine damage from oil starvation.

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

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • JCB
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.