Yamaha WR450 F Oil & Air Filter
GarageDex's powersports data shows the Yamaha WR450 F uses air filter HFF4031 and oil filter HF140. Filter fitment varies by year - see the table for each range.
Filter fitment by year
| Years | Air filter | Oil filter | Performance oil |
|---|---|---|---|
| 2024-2026 | HFF4031 | HF140 | - |
| 2019-2023 | HFF4030 | HF140 | - |
| 2016-2018 | HFF4023 | HF140 | - |
| 2003-2008 | HFF4014 | HF141 | - |
Match the exact part code. Performance oil filters are optional racing-spec upgrades that fit the same mount.
Filters for your Yamaha WR450 F
The recommended parts are the HFF4031 air filter and the HF140 oil filter. Match those codes (or a listed equivalent) - powersports filters are model-specific, so the part code matters more than the brand.
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Frequently asked
What oil and air filter does a Yamaha WR450 F take?
GarageDex's powersports data shows the Yamaha WR450 F uses air filter HFF4031 and oil filter HF140. Filter fitment varies by year - see the table for each range.
What are the Yamaha WR450 F filter part numbers?
The Yamaha WR450 F uses air filter HFF4031 and oil filter HF140. Match the exact part code - powersports filters are model-specific.
Does the Yamaha WR450 F filter change by year?
Yes - the fitment differs across the years we cover: 2024-2026 uses air HFF4031, oil HF140; 2019-2023 uses air HFF4030, oil HF140; 2016-2018 uses air HFF4023, oil HF140; 2003-2008 uses air HFF4014, oil HF141. Match your exact year in the table.
How often should I change a powersports oil and air filter?
Change the oil filter at every oil service - typically every 3,000-4,000 miles or once a season. Clean or replace the air filter more often if you ride dusty trails; a clogged filter chokes power and fuel economy.