Yamaha F200 Water Pump Impeller Replacement
A worn impeller on your 200 hp Yamaha F200 starves the engine of cooling water and can overheat the powerhead in minutes. Below is the exact water-pump kit that fits this engine, a step-by-step video, and the parts you need to do the job yourself.
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Watch: how to replace it (step by step)
How to Replace Impeller – yamaha F150
How to Replace a Yamaha Water Pump | F150, F175, & F200 | DIY Yamaha Outboard Maintenance
Tools Needed
- Yamaha F150 Water Pump Replacement Kit (including new impeller, drive shaft seals, O-rings, bolts, washers)
- Grease for lubrication
- Paper towel
Safety
- Always ensure the engine is off and has cooled down before starting any maintenance work.
- Be cautious when handling sharp edges or moving parts.
Steps
- Remove the water pump collar and spacer to access the impeller.
- Inspect the impeller for signs of melting or grooves on its surface, indicating it may have gotten hot due to restricted water flow.
- If necessary, replace the impeller with a new one from the kit.
- Check the drive shaft seals; if they are resistant, use a tool to help remove them.
- Inspect the drive shaft seals and replace if needed, ensuring to include wave washers and the collar.
- Apply generous amounts of grease to the housing where the O-rings sit for easier handling and better sealing.
- Place the new O-ring from the kit into the greased trough on the housing.
- Align the water pump with the drive shaft, ensuring the plate is flat against the bottom side of the housing.
- Use a paper towel to hold onto the drive shaft while turning it clockwise and pushing down slightly to secure the water pump.
Tips
- The video suggests replacing the Yamaha F150 water pump every three years or 300 hours, whichever comes first.
- Always use grease when reinstalling the water pump to prevent future issues.
Which part do I need for my Yamaha F200?
For most F200 owners the kit above (18-3071) is the right choice — it includes the impeller plus the seals, gaskets and wear plate you should replace at the same time. 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 (8)
| Part number | Description | |
|---|---|---|
| 18-3395 | Sierra 18-3395 | Find on Amazon → |
| 18-3396-1 | Sierra 18-3396-1 | Find on Amazon → |
| 6E5-44352-01-00 | 049 | Find on Amazon → |
| 89619 | Impeller for Yamaha T8 | Find on Amazon → |
| 89930 | Impeller | Find on Amazon → |
| 89932 | Impeller Kit | Find on Amazon → |
| 8M6012787 | Mercury OEM 8M6012787 (replaces Sierra 18-3396-1) | Find on Amazon → |
| 8M6012788 | Mercury OEM 8M6012788 (replaces Sierra 18-3395) | Find on Amazon → |
Many of these are the same physical part under different brand numbers (Sierra, GLM, Yamaha OEM). Confirm the number against your engine plate before ordering.
Frequently asked questions
What water pump impeller fits a Yamaha F200 (200 hp)?
The Yamaha F200 (200 hp) uses the impeller sold as 18-3071, plus its OEM and aftermarket cross-references (8 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 impeller on a Yamaha F200?
On the F200 the guidance in the video is to replace it every three years or 300 hours, whichever comes first — and sooner if you run in silty, sandy or shallow water where debris wears the vanes faster.
What are the symptoms of a failing impeller on a 200 hp Yamaha?
A weak or missing telltale (pee) stream, engine temperature climbing above normal, or an overheat alarm are the classic warning signs. A worn impeller can overheat and damage the powerhead within minutes, so don't delay the job.
Do I need the full water pump kit or just the impeller?
For the F200, fit the complete kit. The seals, O-rings, gasket and wear plate age alongside the impeller, and replacing them together is the reliable, do-it-once job.
How long does a water pump job take on a Yamaha F200?
For a competent DIYer it's typically a 1–2 hour job of medium difficulty. The step-by-step video above covers every step for this engine.
Related guides
- Yamaha F25 water pump / impeller
- Yamaha F50 water pump / impeller
- Yamaha F70 water pump / impeller
- Yamaha F90 water pump / impeller
- All Yamaha water pump guides
- Free Yamaha F200 boat valuation
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