Yamaha F250 Oil & Filter Change
Fresh oil and a new filter are the cheapest insurance for your 250 hp Yamaha F250. Below is the exact oil filter that fits, a step-by-step video of the full oil change, and what else you need for the job.
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Watch: how to do it (step by step)
How to Replace Oil Filter – yamaha F250
Yamaha F250 Outboard Oil And Filter Service At D-Ray's Shop
Yamaha F250 Outboard Oil and Filter Service Guide
Tools Needed
- 14mm socket wrench
- Oil filter wrench
- Garden hose (for warming up the motor)
- Oil catch pan
- Rags or shop towels
- Step ladder (optional, for taller outboards)
Safety
- Wear appropriate clothing and safety glasses when working on your outboard.
- Be cautious of hot engine parts when starting and running the motor.
Steps
- Warm up the outboard by running it with a garden hose connected to it.
- Remove the oil drain cover screws and pull off the cover.
- Using a 14mm socket wrench, loosen and remove the oil drain bolt, allowing the old oil to drain into the catch pan.
- Reach from the front of the motor to locate and remove the oil filter using an oil filter wrench.
- Clean up any spilled oil with rags or shop towels.
- Fill the crankcase with 4 quarts of new oil, then start the engine and run it for a few minutes.
- Check the oil level again and add more oil if necessary to reach the full mark (5.1 quarts total capacity).
- Replace the oil drain cover and tighten the screws securely.
- Inspect the area around the oil filter for any leaks, and clean up any spilled oil.
Tips
- Use a Yamaha-specific oil change kit for the F250 four-stroke to ensure you have the correct amount of oil and the right filter.
- Check the plastic cover over the flywheel and cams for debris or dirt diver nests, and remove it every once in a while for inspection.
Which part do I need for my Yamaha F250?
For most F250 owners the part above (18-7906-1) is the right choice. Price tip: the aftermarket numbers are usually noticeably cheaper than the OEM-branded box — it is the same physical part. If you need an exact match, these compatible part numbers also fit:
Show all compatible part numbers (5)
| Part number | Description | |
|---|---|---|
| 18-7954 | 4-CYCLE OUTBOARD OIL FILTERS | Find on Amazon → |
| 358226 | Mercury OEM 35822626Q15 (replaces Sierra 18-7906-1) | Find on Amazon → |
| 822626 | Mercury OEM 822626Q15 (replaces Sierra 18-7906-1) | Find on Amazon → |
| N26-13440-00-00 | Oil filter | Find on Amazon → |
| N26-13440-02-00 | Oil filter | Find on Amazon → |
Many of these are the same physical part under different brand numbers. Confirm against your engine plate before ordering.
Frequently asked questions
What oil filter fits a Yamaha F250 (250 hp)?
The Yamaha F250 uses the oil filter sold as 18-7906-1, plus its OEM and aftermarket cross-references (5 compatible numbers are listed above). Confirm the number against your engine's model code and year plate before ordering.
How often should I replace the oil filter on a Yamaha F250?
Change the oil and filter every 100 running hours or once a season, whichever comes first (check your manual for the exact interval).
What else do I need for an oil change on a Yamaha F250?
The correct grade and amount of engine oil (see the manual or the video), a new drain-plug washer, a filter wrench and a drain pan or oil extractor pump. Nothing exotic — it is standard service equipment.
What are the signs the oil is overdue on a Yamaha F250?
Dark, gritty oil well past its interval, low-pressure warnings — and milky or grey oil, which means water is getting in and should be investigated immediately.
How long does an oil change take on a Yamaha F250?
About an hour for a competent DIYer. Run the engine warm first — warm oil drains faster and carries more contaminants out with it.
Related guides
- Yamaha F25 oil filter
- Yamaha F50 oil filter
- Yamaha F225 oil filter
- Yamaha F60 oil filter
- All Yamaha maintenance guides
- Free Yamaha boat valuation
As an Amazon Associate we earn from qualifying purchases — at no extra cost to you. Prices and availability are shown at checkout. This guide is for reference; always follow the engine manufacturer’s service manual.