Yamaha F225 Oil & Filter Change
Fresh oil and a new filter are the cheapest insurance for your 225 hp Yamaha F225. Below is the oil filter we recommend, which F225 variants it 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 the oil filter on a Yamaha F225
Yamaha F225 Oil Change | Yamaha Outboard Oil Change | Boats.net
Tools Needed
- 14mm socket wrench
- Oil filter wrench (not explicitly mentioned, but implied)
Safety
- Wear gloves to protect your hands from oil and potential injuries.
- Ensure the engine is cool before starting the procedure to prevent burns.
Steps
- Remove the oil fill cap.
- Place an oil pan underneath the engine to catch the old oil.
- Using a 14mm socket wrench, loosen and remove the drain bolt.
- Extract the old crush washer from the drain bolt.
- Allow the oil to drain completely.
- Reinstall the drain bolt and torque it to 19 foot-pounds.
- Apply a thin layer of new oil around the o-ring of the new oil filter.
- Install the new oil filter by hand, ensuring the o-ring is properly seated.
- Torque the oil filter to 13 foot-pounds using an oil filter wrench.
- Fill the engine with the recommended amount and type of oil (not specified in the video).
- Replace the oil fill cap.
Tips
- Always replace the crush washer on the drain bolt to ensure a proper seal.
- Apply oil to the o-ring of the new oil filter to lubricate it and prevent damage during installation.
- Torque the drain bolt and oil filter to their specified values to ensure a proper seal and prevent leaks.
Which part do I need for my Yamaha F225?
For most F225 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 (6)
| Part number | Description | Fits | |
|---|---|---|---|
| 18-7954 | 4-CYCLE OUTBOARD OIL FILTERS | F225 | Find on Amazon → |
| 35822626Q15 | Mercury OEM 35822626Q15 (replaces Sierra 18-7906-1) | F225 | Find on Amazon → |
| 822626Q15 | Mercury OEM 822626Q15 (replaces Sierra 18-7906-1) | F225 | Find on Amazon → |
| 822626T7 | Mercury OEM 822626T7 (replaces Sierra 18-7906-1) | F225 | Find on Amazon → |
| N26-13440-00-00 | Oil filter | F225 | Find on Amazon → |
| N26-13440-02-00 | Oil filter | F225 | Find on Amazon → |
Many of these are the same physical part under different brand numbers. Build years are shown where our parts data has them. Where a variant has no years, only the model code is listed. Confirm against your engine plate before ordering.
Frequently asked questions
What oil filter fits a Yamaha F225 (225 hp)?
The Yamaha F225 uses the oil filter sold as Sierra 18-7906-1, plus its OEM and aftermarket cross-references (6 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 F225?
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 F225?
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 F225?
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 F225?
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 F250 oil filter
- Yamaha F60 oil filter
- All Yamaha maintenance guides
- Free Yamaha boat valuation
- Buying a boat? Check whether the asking price is fair
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