Harley Davidson FLHR Road King Oil & Air Filter
GarageDex's powersports data shows the Harley Davidson FLHR Road King uses oil filter HF171. Filter fitment varies by year - see the table for each range.
Filter fitment by year
| Years | Air filter | Oil filter | Performance oil |
|---|---|---|---|
| 1999-2022 | - | HF171 | HF171RC |
| 1996-1998 | - | HF170 | HF170RC |
Match the exact part code. Performance oil filters are optional racing-spec upgrades that fit the same mount.
Filters for your Harley Davidson FLHR Road King
The recommended part is the HF171 oil 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 Harley Davidson FLHR Road King take?
GarageDex's powersports data shows the Harley Davidson FLHR Road King uses oil filter HF171. Filter fitment varies by year - see the table for each range.
What are the Harley Davidson FLHR Road King filter part numbers?
The Harley Davidson FLHR Road King uses oil filter HF171, with HF171RC as the performance/racing oil filter option. Match the exact part code - powersports filters are model-specific.
Does the Harley Davidson FLHR Road King filter change by year?
Yes - the fitment differs across the years we cover: 1999-2022 uses oil HF171; 1996-1998 uses oil HF170. 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.