Oil Strainer – Fits Yamaha 20–70 HP 2-Stroke Outboards (Replaces 6J8-13411-00-00)
Oil Strainer – Fits Yamaha 20–70 HP 2-Stroke Outboards (Replaces 6J8-13411-00-00) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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 Strainer – Fits Yamaha 20–70 HP 2-Stroke Outboards (Replaces 6J...
Product Details
This high-quality Oil Strainer is designed for Yamaha 2-stroke outboard engines from 20 to 70 HP, specifically covering models manufactured between 1989 and 2009. It is a crucial component of the oil injection system, ensuring clean oil is delivered to the engine for optimal performance and longevity.
This part serves as a direct interchange for Yamaha 6J8-13411-00-00, Sierra 18-79974, and PWC Engine PWC18-79974 A.
- Installs in the oil tank within the oil injection system.
- Engineered for a direct, OEM-equivalent fit.
- Includes one oil strainer as pictured.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6J8-13411-00-00 |
| Sierra | 18-79974 |
| PWC Engine | PWC18-79974 A |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This strainer is specifically designed for the following Yamaha outboard models.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | Outboard | 20 | 2-Stroke | 1996–1997 | 6J8-13411-00-00 | |
| Yamaha | Outboard | 25 | 2-Stroke | 1988–2001 | 6J8-13411-00-00 | |
| Yamaha | Outboard | 30 | 2-Stroke | 1989–2002 | 6J8-13411-00-00 | C30 models included |
| Yamaha | Outboard | 40 | 2-Stroke | 1989–2006 | 6J8-13411-00-00 | P40 models included |
| Yamaha | Outboard | 50 | 2-Stroke | 1989–2008 | 6J8-13411-00-00 | P50 and Pro50 models included |
| Yamaha | Outboard | 60 | 2-Stroke | 1989–2006 | 6J8-13411-00-00 | P60 models included |
| Yamaha | Outboard | 70 | 2-Stroke | 1989–2009 | 6J8-13411-00-00 |
Technical Specs
- Product Type
- Oil Strainer (Oil Filter)
- Installation
- Oil Tank/Oil Injection System
- Fuel Type
- N/A (Oil System Component)
- Connection
- OEM Fit
- Dimensions
- 1.0" H x 6.0" W x 6.75" L
- Other Technical Attributes
- Used in oil injection systems for 2-stroke outboards
What’s in the Box
- 1 x Strainer, Oil (6J8-13411-00-00)
Installation Notes
- Ensure the engine is off and cool, then disconnect the battery.
- Locate the oil tank and carefully expose the oil strainer assembly.
- Remove the old strainer, being prepared for minor oil spillage.
- Clean the mounting surface and surrounding area of any debris or old residue.
- Install the new strainer, making sure it is seated correctly and all connections are secure.
- Top off the oil tank to the recommended level.
- Reconnect the battery and check for any leaks before starting the engine.
Troubleshooting & FAQ
How do I know if my oil strainer is clogged or failing?
Common symptoms of a faulty oil strainer include low oil pressure alarms, engine hesitation, or rough running. A visual inspection during service may also reveal accumulated debris or damage, indicating a need for replacement.
Will this fit all Yamaha Pro50 models?
This part is listed as compatible with Yamaha 50 HP 2-Stroke engines from 1989 to 2008, which includes the Pro50 models within that year range. Always verify your OEM part number (6J8-13411-00-00) to be sure.
What is the recommended replacement interval for this strainer?
There is no strict interval, but it is best practice to inspect the oil strainer during routine annual service. We recommend replacing it every 2-3 seasons or whenever it appears clogged or contaminated to prevent oil starvation.
Is this aftermarket part functionally different from the Yamaha OEM part?
No, it is built to provide the same fit, form, and function as the original OEM part. It meets or exceeds manufacturer specifications for filtration and flow in the intended oil injection systems.
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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