K&N High Flow Air Filter
1019-0818 (MFG #: DU-9001)
$145.99
Sale price
$145.99
Regular price
$145.99
Skip to product information
K&N High Flow Air Filter for KTM 85 SX Dirt Bike
K&N
K&N High Flow Air Filter for KTM 85 SX Dirt Bike
K&N
$145.99
Sale price
$145.99
Regular price
$145.99
SKU:1019-0818
My Garage
Select a ride to guarantee fitment.
My Garage
Add your vehicles to your garage. Several features will then be available to facilitate your searches.
- Store vehicles in your garage
- Easily find guaranteed fit products and accessories
- Get product recommendations
Available Online
Free shipping on orders over $99
Standard Fulfillment: -
Expedited Fulfillment: -
Lowest Price Guaranteed
Fast Shipping
Easy Returns
Description
K&N Powersports High-Flow Air Filter
Upgrade your machine’s performance with a K&N High-Flow Powersports Air Filter. Designed to increase airflow while providing superior filtration, these premium reusable filters help your engine breathe better for improved horsepower, throttle response, and overall performance.
Built with oiled cotton gauze media, K&N filters capture dirt and debris while allowing more air to reach the engine compared to traditional paper filters. The result is better performance and long-term reliability for motorcycles, ATVs, UTVs, and other powersports machines.
Unlike disposable filters, K&N air filters are washable and reusable, helping reduce maintenance costs over time. With proper cleaning and oiling, one filter can last for the life of your vehicle.
Key Features
High-flow design improves airflow and engine performance
Superior filtration protects your engine from dirt and debris
Washable and reusable for long-term value
Durable oiled cotton gauze construction
Direct OEM replacement for easy installation
Designed specifically for motorcycles, ATVs, UTVs, and other powersports applications
Why Choose K&N?
K&N is a global leader in high-performance filtration, trusted by riders and racers worldwide. Their powersports air filters are engineered to deliver maximum airflow without sacrificing engine protection, helping you get the most out of your ride.
Technical Specifications
- MFG. Part Number DU-9001
Vehicle Information
KTM 85 SX Dirt Bike (2003-2026)
The KTM 85 SX has been a cornerstone in junior motocross racing from 2003 to 2026, consistently powered by an 85cc two-stroke, liquid-cooled engine. This high-performance dirt bike is renowned for its agility and competitive edge, featuring an 84.9cc single-cylinder engine paired with a 6-speed manual transmission and a hydraulic clutch. Throughout its production, the 85 SX has offered two primary wheel size configurations—17/14 and 19/16 inches—to accommodate various rider heights and skill levels, a consistent trim distinction since at least 2009. The model has seen several key evolutions. Introduced in 2003 as a new construction, it received significant updates in 2008 with a sturdier frame and improved engine, followed by a new chassis and power enhancements in 2011. A major redesign around 2018 introduced a chromoly steel frame and WP Xact suspension. The 2026 model continues this trend with further engine weight reduction (120g lighter), new triple clamps, and advanced WP XACT AER forks, alongside a redesigned subframe, ensuring continuous optimization for performance. FAQ:
Q: How do I ensure I select the correct parts for my KTM 85 SX?
A: Always use the year and edition selector on this page to find parts specifically compatible with your motorcycle.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | 5 to 10 h | 5 h for aggressive/race riding; 10 h for recreational riding. Some models may require 3 h for very aggressive riding. |
| Air Filter | 2 to 5 h | 2-3 h for aggressive/dusty riding; 5 h for recreational riding. Clean and lubricate regularly. |
| Spark Plug | Check regularly | Replace if required. No fixed hourly interval specified. |
| Coolant | Check levels | Check cooling system for leaks. No fixed replacement interval specified. |
| Chain (Final Drive) | Every 5 h | Clean and lubricate regularly to ensure smooth operation and prevent premature wear. |
| Valve Inspections | 10 to 30 h | 10 h for aggressive riding; 20 h for recreational riding (some models). The 2010 model recommends 30 h. |
| Top-End Inspections (Piston, Cylinder) | 15 to 30 h | 15 h for aggressive riding; 30 h for recreational riding. |
| Bottom-End Inspections (Crankshaft, Bearings) | 30 to 60 h | 30 h for aggressive riding; 60 h for recreational riding. |
Maintenance intervals can vary significantly by model year and riding style (recreational vs. aggressive). Always consult your specific owner's manual for precise recommendations.