Oil Drain Gasket – Fits Yamaha, Honda, Parsun, Tohatsu, Mercury Outboards (Replaces PAF15-04000003, 90430-14M09)
Oil Drain Gasket – Fits Yamaha, Honda, Parsun, Tohatsu, Mercury Outboards (Replaces PAF15-04000003, 90430-14M09) is backordered and will ship as soon as it is back in stock.
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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
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Oil Drain Gasket – Fits Yamaha, Honda, Parsun, Tohatsu, Mercury Out...
Product Details
This Oil Drain Gasket – Fits Yamaha, Honda, Parsun, Tohatsu, Mercury Outboards is designed for oil drain screws in a wide range of outboard engines, including Yamaha 4-Stroke 9.9–115 HP (1998–Present), Honda 4-Stroke BF8–BF30 HP (2000–Present), Parsun 4-Stroke F6–F9.8 HP (All Years), Tohatsu 4-Stroke MFS8–MFS9.8 HP (2000–Present), and Mercury 4-Stroke 8–30 HP (2005–Present). It creates a reliable, leak-proof seal when compressed between the oil drain screw and the engine block during an oil change.
It serves as a direct replacement for multiple OEM part numbers, including Yamaha 90430-14M09 and 90430-14115, Honda 90507-921-000 and 90601-ZE2-000, Parsun PAF15-04000003, Tohatsu 3R3-07406-0, and Mercury/Mercruiser 27-11754M, 81990M, and 895146.
- Installs via manual compression to create a tight seal.
- Engineered to be vibration-resistant and suppress noise.
- Withstands extreme temperatures and pressure typical of marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 90430-14115 | Superseded by 90430-14M09 |
| Yamaha | 90430-14M09 | Current part number |
| Honda | 90507-921-000 | |
| Honda | 90601-ZE2-000 | Non-marine applications |
| Parsun | F15-04000003 | Also PAF15-04000003 |
| Tohatsu | 3R3-07406-0 | Also HZE290601000 |
| Mercury/Mercruiser | 27-11754M | |
| Mercury/Mercruiser | 81990M | |
| Mercury/Mercruiser | 895146 | |
| Mercruiser | 27-8886586 | Inboard/sterndrive applications |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha engines, this gasket fits most 4-stroke models from 9.9 HP up to 115 HP manufactured from 1998 to the present day.
For Honda outboards, compatibility covers 4-stroke models from the BF8 to the BF30 series, starting from the year 2000.
For Parsun, this part is suitable for all years of their F6, F8, and F9.8 4-stroke models.
For Tohatsu, this gasket covers 4-stroke models from MFS8 to MFS20, manufactured from 2000 onwards.
For Mercury, this part fits 4-stroke outboards from 8 HP to 30 HP made since 2005.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F9.9-F15 | 9.9-15 | 4-Stroke | 1998–Present | 90430-14115 | Superseded by 90430-14M09 |
| Yamaha | F20-F25 | 20-25 | 4-Stroke | 1998–Present | 90430-14M09 | Current part number |
| Yamaha | F30-F40 | 30-40 | 4-Stroke | 1998–Present | 90430-14M09 | |
| Yamaha | F50-F60 | 50-60 | 4-Stroke | 1998–Present | 90430-14M09 | |
| Yamaha | F75-F90 | 75-90 | 4-Stroke | 1998–Present | 90430-14M09 | |
| Yamaha | F100-F115 | 100-115 | 4-Stroke | 1998–Present | 90430-14M09 | |
| Honda | BF8-BF9.9 | 8-9.9 | 4-Stroke | 2000–Present | 90507-921-000 | |
| Honda | BF15-BF20 | 15-20 | 4-Stroke | 2000–Present | 90507-921-000 | |
| Honda | BF25-BF30 | 25-30 | 4-Stroke | 2000–Present | 90507-921-000 | |
| Honda | Small Engines | Various | 4-Stroke | Various | 90601-ZE2-000 | Non-marine applications |
| Parsun | F6BML, F6BMS | 6 | 4-Stroke | All Years | PAF15-04000003 | |
| Parsun | F8BML, F8BMS | 8 | 4-Stroke | All Years | PAF15-04000003 | |
| Parsun | F9.8BML, F9.8BMS | 9.8 | 4-Stroke | All Years | PAF15-04000003 | |
| Tohatsu | MFS8/9.8 | 8-9.8 | 4-Stroke | 2000–Present | 3R3-07406-0 | |
| Tohatsu | MFS9.9/15/20 | 9.9-20 | 4-Stroke | 2000–Present | 3R3-07406-0 | |
| Mercury | 8M, 9.9M | 8-9.9 | 4-Stroke | 2005–Present | 27-11754M | |
| Mercury | 15M, 20M | 15-20 | 4-Stroke | 2005–Present | 27-11754M | |
| Mercury | 25M, 30M | 25-30 | 4-Stroke | 2005–Present | 27-11754M | |
| Mercruiser | Various | Various | 4-Stroke | Various | 27-8886586 | Inboard/sterndrive applications |
Technical Specs
- Product Type
- Oil Drain Screw Gasket
- Installation
- Manual compression
- Connection
- Oil drain port
- Housing Material
- Rubber/elastomer
- Housing Color
- Black
- Product Dimensions
- 4.0" H x 5.13" W x 0.13" L
- Box Dimensions
- 4.0" H x 5.13" W x 0.13" L
- Weight
- 0.01 kg (0.022 lbs)
- Fitting Type
- Compression gasket
- Thread Size
- Compatible with standard oil drain plugs
- Operating Temperature
- -20°C to 120°C (-4°F to 248°F)
- Warranty
- Standard parts warranty (typically 90 days)
- Other Attributes
- Vibration-resistant, suppresses noise, withstands extreme temperatures and pressure
What’s in the Box
- 1 x Gasket (PAF15-04000003/90430-14M09-00)
Installation Notes
- Ensure the engine is off and has cooled down. Position a suitable oil drain pan under the lower unit.
- Locate and remove the oil drain screw using the correct size wrench. Be prepared for oil to flow out immediately.
- Once the oil has drained completely, carefully remove the old gasket from the screw or engine casing.
- Clean the drain screw and the surface area around the drain hole to ensure a clean, debris-free mating surface.
- Place the new gasket over the drain screw threads.
- Reinstall the drain screw with the new gasket and tighten it to the manufacturer's recommended torque specification. Do not overtighten.
Troubleshooting & FAQ
How do I confirm this gasket fits my specific engine?
The best way is to check your OEM part number. This gasket replaces several, including Yamaha 90430-14M09, Honda 90507-921-000, and Parsun PAF15-04000003. You can also review the 'Engine & Model Compatibility' table on this page to find your brand, model, and year.
What are signs of a failing oil drain gasket?
The most common sign is a slow drip or a visible film of oil around the drain plug area. If you notice a fresh oil spot under your lower unit after it has been sitting, the gasket is likely compromised and should be replaced.
How often should I replace the oil drain gasket?
It is best practice to replace the oil drain gasket every time you change your engine's lower unit gear oil. They are single-use components designed to crush and seal under pressure, and reusing them significantly increases the risk of leaks.
Can I reuse my old gasket if it looks okay?
No. These are crush gaskets designed for one-time use. Reusing an old gasket, even if it appears undamaged, can lead to improper sealing and cause a slow, damaging oil leak. Always install a new gasket with every oil change.
What is the difference between this aftermarket gasket and an OEM part?
Our aftermarket gaskets are manufactured to meet or exceed OEM specifications for material, fit, and function. They are produced in an ISO 9002 certified facility and provide a reliable, cost-effective alternative to the original manufacturer's part without sacrificing performance or durability.
What happens if I use the wrong size gasket?
Using an incorrect gasket can lead to a poor seal, resulting in an oil leak that can cause severe damage to your engine's internal components due to oil starvation. It can also lead to the drain plug vibrating loose. Always verify the part number and dimensions.
Is this an OEM part or an aftermarket replacement?
This listing is for an aftermarket replacement, not an OEM component. It is engineered to OEM-level specifications with comparable materials, manufactured in an ISO 9002 facility, and batch-inspected for quality and consistency.
How fast is shipping?
We ship worldwide quickly, with typical transit times of 5–15 days for most regions. Standard shipping is free, and expedited options are available at checkout where applicable.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. Should any issues arise, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their 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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