KTM 300 EXC Hardenduro Oil & Air Filter
GarageDex's powersports data shows the KTM 300 EXC Hardenduro uses air filter HFF5021.
Filter fitment by year
| Years | Air filter | Oil filter | Performance oil |
|---|---|---|---|
| 2024-2026 | HFF5021 | - | - |
Match the exact part code. Performance oil filters are optional racing-spec upgrades that fit the same mount.
Filters for your KTM 300 EXC Hardenduro
The recommended part is the HFF5021 air filter. Match that code (or a listed equivalent) - powersports filters are model-specific, so the code matters more than the brand.
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Frequently asked
What oil and air filter does a KTM 300 EXC Hardenduro take?
GarageDex's powersports data shows the KTM 300 EXC Hardenduro uses air filter HFF5021.
What are the KTM 300 EXC Hardenduro filter part numbers?
The KTM 300 EXC Hardenduro uses air filter HFF5021. Match the exact part code - powersports filters are model-specific.
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.