Honda TRX400 EX Air & Oil Filter
The Honda TRX400 EX (1999-2000) takes a HF113 oil filter and a HFF1023 air filter.
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Key takeaways
- Oil filter: HF113.
- Air filter: HFF1023.
- Change the oil filter at every oil change; check the air filter each service.
- Covers 1999-2000.
Verified fitLast checked
Sources: Hiflofiltro application catalogue
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.
Buy the filters for your Honda TRX400 EX
Shop the HF113 oil filterDirect fit + equivalents (Hiflofiltro, K&N, OEM)Shop Shop the HFF1023 air filterDirect fit + equivalents (Hiflofiltro, K&N, OEM)Shop
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Frequently asked
What oil filter does a Honda TRX400 EX take?
The Honda TRX400 EX takes a HF113 oil filter. That part number, or a listed equivalent, is a direct fit.
What air filter does a Honda TRX400 EX take?
The Honda TRX400 EX takes a HFF1023 air filter. That part number, or a listed equivalent, is a direct fit.
How often should I change the filters on a Honda TRX400 EX?
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 Honda TRX400 EX
We cover the other consumables for your machine too - the exact fit, cited, in one place.