Yamaha F150 Oil & Filter Change
Fresh oil and a new filter are the cheapest insurance for your 150 hp Yamaha F150. 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 Unknown
How to Change Oil and Oil Filter on a Yamaha 150 hp Four Stroke Outboard by DIYeasycrafts
Tools Needed
- Fresh water muffs
- Dipstick
- Oil pump
- Yamalube 10w30 oil
- Funnel
- Oil filter wrench
- Replacement oil filter
Safety
- Ensure the engine is properly cooled before handling.
- Use caution when working with tools and machinery.
Steps
- Position engine muffs on the intakes for proper water flow.
- Turn on a garden hose to ensure the engine has plenty of water.
- Start the engine and let it idle for about five minutes to warm up.
- Remove the filler cap to break any air lock.
- Take out the dipstick, insert the straw from the pump into the dipstick tube, and pump the oil out 10 times or until all the oil is drained.
- Place a pan under the drain plug if your engine model has one; otherwise, remove the panel on the starboard side to access the drain plug.
- Remove the drain plug and allow the oil to flow into the pan.
- Unscrew the old oil filter with an oil filter wrench.
- Apply a small amount of Yamalube 10w30 oil to lubricate the new filter's gasket.
- Screw in the new filter by hand until it is snug, then use the wrench to tighten it further.
- Fill the engine with Yamalube 10w30 oil using a funnel.
- Check the dipstick periodically to ensure the oil level is between the markers.
Tips
- Using an oil pump makes draining the oil easier and more efficient, even without warming up the engine.
- Always use the correct type of oil specified by the manufacturer for optimal performance.
Which part do I need for my Yamaha F150?
For most F150 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 (2)
| Part number | Description | |
|---|---|---|
| 358226 | Mercury OEM 35822626Q15 (replaces Sierra 18-7906-1) | Find on Amazon → |
| 822626 | Mercury OEM 822626Q15 (replaces Sierra 18-7906-1) | 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 F150 (150 hp)?
The Yamaha F150 uses the oil filter sold as 18-7906-1, plus its OEM and aftermarket cross-references (2 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 F150?
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 F150?
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 F150?
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 F150?
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 F250 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.