Yamaha TRX850 Air & Oil Filter
The Yamaha TRX850 (1995-2000) takes a HF145 oil filter and a HFA4801 air filter.
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Key takeaways
- Oil filter: HF145.
- Air filter: HFA4801.
- Change the oil filter at every oil change; check the air filter each service.
- Covers 1995-2000.
Verified fitLast checked
Sources: Hiflofiltro application catalogue
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.
Buy the filters for your Yamaha TRX850
Shop the HF145 oil filterDirect fit + equivalents (Hiflofiltro, K&N, OEM)Shop Shop the HFA4801 air filterDirect fit + equivalents (Hiflofiltro, K&N, OEM)Shop
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Frequently asked
What oil filter does a Yamaha TRX850 take?
The Yamaha TRX850 takes a HF145 oil filter. That part number, or a listed equivalent, is a direct fit.
What air filter does a Yamaha TRX850 take?
The Yamaha TRX850 takes a HFA4801 air filter. That part number, or a listed equivalent, is a direct fit.
How often should I change the filters on a Yamaha TRX850?
Change the oil filter at every oil change, and inspect the air filter at each service - replace it when dirty, sooner if you ride in dust or off-road. Always follow your owner's manual interval.
More parts for your Yamaha TRX850
We cover the other consumables for your machine too - the exact fit, cited, in one place.