K&N High-Flow Engine Air Filter for Toyota/Lexus GX470 4Runner Tundra (33-2144) — Washable, Lifetime

K&N High-Flow Original Lifetime Engine Air Filter (33-2144) is a washable, reusable performance air filter engineered to increase airflow and improve engine responsiveness for compatible Lexus and Toyota models.

This premium replacement filter fits the factory air box of select 2000–2010 Lexus and Toyota SUVs and trucks, including GX470, 4Runner, Land Cruiser Prado, Sequoia and Tundra. Rather than disposable paper elements, this K&N unit uses layered cotton gauze and durable construction so it can be cleaned and reinstalled — reducing waste and lifetime filter costs. Every filter is pre-oiled and ready for quick installation, and K&N backs it with a limited lifetime warranty and race-proven development.

How does this filter affect engine performance?

The K&N design focuses on improving airflow to the intake while still trapping dirt and debris. More air into the engine can help increase throttle response and preserve power delivery under load. Gains vary by vehicle and conditions but are achieved without altering the factory airbox.

• State-of-the-art cotton gauze media for increased airflow
• Multiple layers of tacked cotton to trap contaminants effectively
• Pre-oiled and ready to install for immediate performance benefit
• Engineered and tested on demanding tracks for real-world durability

What maintenance does a K&N lifetime filter require?

Unlike single-use paper filters, this K&N filter is washable and reusable. Under normal highway driving it typically needs a cleaning about every 75,000 miles, though dusty conditions may require more frequent service. Cleaning kits and instructions are widely available and simple to follow.

• Clean roughly every 75,000 miles under typical highway use
• Wash, dry, and re-oil following K&N cleaning procedures
• Inspection recommended after off-road or heavy dust exposure
• Durable construction supports multiple cleanings over the vehicle life

Will this filter fit my Lexus or Toyota model?

This specific K&N part number 33-2144 is designed to replace the factory air filter on several Lexus and Toyota models spanning early 2000s to 2010. Fitment is intended to be a direct drop-in for compatible air boxes, keeping installation fast and tool-light. Confirm fit with your model year and engine before purchase.

• Compatible with 2002–2009 Lexus GX470
• Fits 2002–2010 Toyota 4Runner and 2003–2010 Land Cruiser Prado
• Also made for 2001–2007 Toyota Sequoia and 2000–2006 Toyota Tundra
• Designed for straightforward, factory-aligned installation

What are the construction and warranty highlights?

The filter uses multiple layers of premium cotton gauze with a tackifying treatment to capture particles while allowing high flow. It is assembled with rugged components for long-term use and manufactured in the USA. K&N supports these filters with a limited lifetime warranty, subject to terms and conditions.

• Four layers of treated cotton gauze for filtration and flow balance
• Robust frame and sealing design to maintain fit and filter integrity
• Made in the USA with race-tested engineering standards
• Limited lifetime warranty provides long-term confidence

Who is this for: Drivers of compatible Lexus and Toyota SUVs or trucks who want a low-maintenance, reusable intake filter that can improve airflow and throttle response while cutting long-term filter costs and landfill waste. It’s especially suited for owners who prefer straightforward upgrades that fit the factory airbox and want a durable, race-developed filtration solution.