KTM 640 Duke Oil & Air Filter
GarageDex's powersports data shows the KTM 640 Duke uses air filter HFF5014 and oil filter HF155. Filter fitment varies by year - see the table for each range.
Filter fitment by year
| Years | Air filter | Oil filter | Performance oil |
|---|---|---|---|
| 1999-2006 | HFF5014 | HF155 | - |
| 1999-2006 | HFF5014 | HF156 | - |
Match the exact part code. Performance oil filters are optional racing-spec upgrades that fit the same mount.
Filters for your KTM 640 Duke
The recommended parts are the HFF5014 air filter and the HF155 oil filter. Match those codes (or a listed equivalent) - powersports filters are model-specific, so the part code matters more than the brand.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What oil and air filter does a KTM 640 Duke take?
GarageDex's powersports data shows the KTM 640 Duke uses air filter HFF5014 and oil filter HF155. Filter fitment varies by year - see the table for each range.
What are the KTM 640 Duke filter part numbers?
The KTM 640 Duke uses air filter HFF5014 and oil filter HF155. Match the exact part code - powersports filters are model-specific.
Does the KTM 640 Duke filter change by year?
Yes - the fitment differs across the years we cover: 1999-2006 uses air HFF5014, oil HF155; 1999-2006 uses air HFF5014, oil HF156. 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.