K&N Racing Oil Filter Aprilia RS 660 (20-26) KN-138
K&N Racing Oil Filter Aprilia RS 660 (20-26) KN-138
Delivery time on request
K&N Premium Oil Filter for Aprilia RS 660 (2020-2026) – KN-138 – This high-quality racing oil filter is specifically designed for extreme racing conditions and demanding street use. With its 17mm hex, it can be easily installed and removed with common hand tools – no special tools required. The reinforced construction with thicker housing walls (50% thicker than standard filters) provides additional durability and stability, even under the highest loads.
Product Features:
- Easy Installation & Removal: The 17mm hex allows for quick handling with standard hand tools.
- Robust Construction: Reinforced housing walls and thicker base plate offer exceptional strength and resistance to high loads.
- Bypass Valve & Anti-Drainback Valve: Protects against dry starts and filter drainback – ideal for sustained performance under extreme conditions.
- High Flow Rate: For optimal oil supply, even at high RPMs and intense use.
- Excellent Filtration: The synthetic filter medium ensures maximum cleanliness and prevents deposits.
- Compatible with Synthetic Motor Oils: Designed for use with modern synthetic motor oils and racing fuels.
- Easy Installation: O-ring pre-lubricated for quick and clean mounting.
- Track Compatibility: With hole for safety wire, ideal for use on the racetrack.
- Durable & Resilient: Withstands extreme temperatures and high oil pressures – perfect for the Aprilia RS 660 and anyone seeking performance and reliability.
Item Number: KN-138
Note: This K&N oil filter is specifically designed for the Aprilia RS 660 (2020-2026) and is suitable for both street and track use. Get the best oil filter for maximum engine performance and optimal protection under extreme conditions!
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About Us
About Us
Our passion for quality and innovation drives us to offer you the best products and services for motorcycle enthusiasts. From exclusive high-performance parts to tailor-made solutions — your riding experience is at the center of everything we do.
Shipping & Returns
Shipping & Returns
We ship with DHL and FedEx — and on request, we also offer express shipping. If an item is in stock, express shipping is possible in many cases within 1 business day. The standard delivery time is about 2–5 business days domestically, and typically about 1 week worldwide. Please check the available shipping options and transit times in the shopping cart, as we offer multiple shipping service providers depending on the country.
Returns must be registered in advance by email and are possible according to our return policy (14 days to request a return + 14 days for the return shipment after approval). Please note: Unregistered returns will not be accepted. All details on terms, exceptions, and refunds can be found in our return policy.
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More Infos in our FAQs
Email our team – we’ll get back to you as soon as possible.
How long does it take to process my order?
How long does it take to process my order?
If the item is in stock, we typically process your order very quickly—often the same day for dispatch.
Our processing times are Monday to Friday, 07:30–16:30.
Do you ship internationally?
Do you ship internationally?
Yes, we ship worldwide. Shipping is carried out depending on the country and selection with DHL or FedEx.
What is your return policy?
What is your return policy?
Returns must be registered in advance by email. You can request a return within 14 days of receiving the item, and you have another 14 days to send it back after approval.
Important: Unregistered returns will not be accepted. You can find all details in our cancellation policy.
What does “Delivery time on request” mean?
What does “Delivery time on request” mean?
“Delivery time on request” means that the item is usually not immediately in stock and may need to be ordered separately. Please contact us before purchasing – we’ll check availability and provide you with the estimated delivery time.
Do you offer express shipping?
Do you offer express shipping?
Yes, we offer express shipping. If an item is in stock, dispatch can often be completed within 1 business day (depending on the country and shipping option). You can see the available shipping methods in the cart.

