Aprilia RS 660 Factory 4T E5+ Air & Oil Filter
The Aprilia RS 660 Factory 4T E5+ (2025) takes a HF138 oil filter and a HFA6113 air filter.
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Key takeaways
- Oil filter: HF138 (performance: HF138RC).
- Air filter: HFA6113.
- Change the oil filter at every oil change; check the air filter each service.
- Covers 2025.
Verified fitLast checked
Sources: Hiflofiltro application catalogue
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.
Buy the filters for your Aprilia RS 660 Factory 4T E5+
Shop the HF138 oil filterDirect fit + equivalents (Hiflofiltro, K&N, OEM)Shop Shop the HFA6113 air filterDirect fit + equivalents (Hiflofiltro, K&N, OEM)Shop
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Frequently asked
What oil filter does a Aprilia RS 660 Factory 4T E5+ take?
The Aprilia RS 660 Factory 4T E5+ takes a HF138 oil filter (or the HF138RC performance version). That part number, or a listed equivalent, is a direct fit.
What air filter does a Aprilia RS 660 Factory 4T E5+ take?
The Aprilia RS 660 Factory 4T E5+ takes a HFA6113 air filter. That part number, or a listed equivalent, is a direct fit.
How often should I change the filters on a Aprilia RS 660 Factory 4T E5+?
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 Aprilia RS 660 Factory 4T E5+
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