Yanmar 3HM35F Fuel Filter Replacement
A clogged fuel filter starves your Yanmar 3HM35F of fuel — hard starts, hesitation and lost power at speed. Below is the filter we recommend, which 3HM35F variants it fits, a step-by-step video, and the symptoms to look for.
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Watch: how to do it (step by step)
How to replace the fuel filter on a Yanmar 3HM35F
S1:E9| How to Fix Yanmar 3HM35F Diesel Engine Clogged Fuel Filter
Tools Needed
- Screwdriver (to open the fuel filter)
- Bucket (to collect fuel and residue)
- Compressed air (to blow through the system)
- Clean diesel (to refill the system)
Safety
- Ensure the engine is off and cool before starting any work.
- Be cautious when handling fuel and residue.
Steps
- Drain the bowl below the Racor fuel filter to remove any dirty fuel.
- Replace the fuel filter with a new one.
- Refill the system with clean diesel.
- Attempt to prime the system and start the engine.
- If the engine stalls again, inspect the fuel lines and fittings for any blockages or residue.
- Take apart the fuel system, ensuring all components are clean.
- Blow through the system using compressed air to clear any remaining residue.
- Reassemble the fuel system, ensuring all hoses are properly connected.
- Bleed the air out of the system.
- Start the engine and check for proper operation.
Tips
- Keep a quarter nearby to open the fuel filter easily if needed.
- Regularly check and clean the fuel filter to prevent future issues.
- If the fuel filter cup is empty or full of water, the problem may be more severe than just a clogged filter.
Which part do I need for my Yanmar 3HM35F?
For most 3HM35F owners the part above (104500-55710) 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 (1)
| Part number | Description | Fits | |
|---|---|---|---|
| 124770-12540 | Yanmar, Air Filter, 124770-12540 | 3HM35F | 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 fuel filter fits a Yanmar 3HM35F?
The Yanmar 3HM35F uses the fuel filter sold as 104500-55710, plus its OEM and aftermarket cross-references (1 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 fuel filter on a Yanmar 3HM35F?
Replace the fuel filter once a season or per the service manual — and sooner after a batch of dirty fuel or water in the separator.
What are the symptoms of a clogged fuel filter on a Yanmar 3HM35F?
Hard starting, hesitation or surging under load, stalling at higher throttle and a general loss of power. The engine typically runs fine at idle and starves when fuel demand rises.
Do I need to bleed or prime the fuel system afterwards?
On diesel engines, yes — air must be bled from the fuel system after the filter change, and the video shows the procedure. On petrol outboards, squeeze the primer bulb firm before starting.
How long does a fuel filter change take on a Yanmar 3HM35F?
Usually 30-60 minutes including priming or bleeding — a straightforward DIY job with basic tools.
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