SKU: KNE33-2287
UPC: 024844104892
MPN: 33-2287
The K&N Engineering 04-08 Ford P/U 5.4L Performance Air Filter (part number 33-2287) is a reusable cotton panel air filter engineered for full-size Ford pickup trucks and sport utility vehicles from 2004 through 2008. This high-flow air filter replaces the factory restriction with a design optimized to increase airflow to the engine while maintaining proper filtration, delivering measurable gains in throttle response and horsepower for naturally aspirated 5.4-liter V8 powertrains.
The filter element measures 11.375 by 8.5 inches with a 0.938-inch tall profile, engineered to fit factory air intake systems without modification. K&N's proprietary cotton blend media provides superior airflow compared to standard pleated paper while remaining washable and reusable across multiple service intervals. The red-colored media is treated with K&N's signature oil coating, which captures larger particulates while minimizing flow restriction—a critical advantage for trucks operating in dusty or high-demand environments. Proper maintenance involves occasional cleaning with K&N's recommended cleaner and oil system to maintain optimal filtration and engine performance.
This filter suits Ford F-150, Expedition, and related 5.4L platform owners seeking straightforward performance improvement without complex installation or tuning. The reusable design delivers long-term cost savings over disposable filters while supporting the engine's breathing efficiency across varying altitudes and climate conditions. Installation is direct bolt-in compatibility with 2004–2008 Ford full-size trucks and SUVs, making it an accessible upgrade for builders focused on foundational air intake optimization.
K&N has established a recognized position in the performance filtration market, known for engineering high-flow alternatives to original equipment restrictions. The 33-2287 represents the company's standard formula for domestic truck platforms, addressing the demand for cleaner, unrestricted intake flow without sacrificing engine protection or requiring fuel system adjustments.
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