K&N High Flow Air Filter for Honda Foreman 450 ATV
K&N High Flow Air Filter for Honda Foreman 450 ATV
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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
Honda Foreman 450 ATV (1998-2004)
The Honda Foreman 450, produced from 1998 to 2004, was a utility ATV known for its robust performance and durability. Across these model years, the core engine specifications remained largely consistent. It was powered by an air-cooled, OHV (Overhead Valve), longitudinally mounted single-cylinder, four-stroke engine with a 433cc displacement, providing reliable power for work applications. Initially launched in 1998, the Foreman 450 was available in two primary trims: the manual-shift Foreman S (TRX450S/TRX450FM) and the Foreman ES (TRX450ES/TRX450FE) featuring Honda's innovative Electric Shift Program (ESP). ESP allowed push-button gear changes while retaining a five-speed manual transmission. In 2002, Honda introduced the TraxLok system, its first switch-operated 2WD/4WD system, enhancing versatility with a torque-sensitive, limited-slip front differential. The 433cc engine maintained its fundamental design throughout this period, emphasizing reliability and strong low-end power delivery. Q: Is my Honda Foreman 450 compatible with this product?
R: To ensure perfect compatibility, please use our year and trim selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil | Every 1 000 km or annually, whichever comes first. Initial change after the first 20 hours or 150 km. | |
| Oil Filter | With every engine oil change | |
| Spark Plug | Every 100 hours or 1 000 km | Inspect, clean, adjust, or replace if necessary. |
| Air Filter | Cleaned every 100 hours or 1 000 km. Replaced every 19 000 km or annually, or more frequently if ridden in dusty or muddy conditions. | |
| Coolant | Inspected and replaced if necessary every 100 hours or 1 000 km |