K&N Performance Diesel High-Flow Engine Air Filter 33-5005 for 2013–2026 RAM 2500/3500/4500/5500 — Washable, Reusable, Lifetime

K&N Performance Diesel High-Flow Lifetime Engine Air Filter 33-5005 is a washable, reusable replacement filter engineered to boost airflow and maintain long-term performance for 2013–2026 RAM 2500, 3500, 4500, and 5500 trucks.

This direct-fit, premium cotton-gauze filter is designed to slip into your factory air box and deliver improved airflow compared with disposable paper elements. Built with multi-layer media and robust construction, the 33-5005 is pre-treated and ready to install, offering a maintenance interval measured in years rather than months. Backed by K&N’s limited lifetime warranty, it’s an investment that aims to reduce ongoing replacement costs and landfill waste while preserving engine protection.

How does this filter improve my truck’s performance?

The filter increases the volume of clean air reaching the engine, which can help optimize combustion efficiency under many driving conditions. K&N’s layered cotton-gauze media is engineered for higher flow while still trapping contaminants, tuned to support heavier diesel demands.

• High-flow media engineered to increase airflow up to published levels
• Multi-layer cotton gauze for balanced flow and filtration
• Pre-oiled and ready to install—no break-in required

How often will I need to clean the filter and how easy is maintenance?

This K&N element is washable and reusable; under typical highway driving it only requires cleaning about every 75,000 miles, which translates to roughly once every five years for many owners. Cleaning is straightforward using K&N cleaning kits and instructions, making it a low-frequency DIY maintenance task.

• Typical cleaning interval: about 75,000 miles under normal highway use
• Wash, dry, and re-oil with K&N care kit following provided steps
• Designed for simple removal and reinstallation in the factory air box

Will the K&N 33-5005 fit my RAM truck and is installation difficult?

The 33-5005 is made to be a direct replacement for factory air filters in 2013–2026 RAM 2500, 3500, 4500, and 5500 models. Installation is intended to be quick and tool-light: drop the pre-treated filter into the stock housing and re-secure the lid—most owners complete the swap in minutes.

• Direct-fit for specified RAM diesel models—no trimming or modification
• Pre-treated filter element simplifies first-time installation
• Installation typically takes only a few minutes with basic steps

Is this filter durable and environmentally responsible?

K&N constructs this filter with rugged materials to last for the lifetime of the vehicle, reducing the need to buy and discard multiple disposable filters. The reusable design helps cut landfill waste and can lower long-term ownership costs.

• Built with durable frame and premium media for extended service life
• Reusable design reduces disposable filter replacements and waste
• Manufactured in the USA and backed by a limited lifetime warranty

Who is this for: the K&N Performance Diesel High-Flow Lifetime Engine Air Filter 33-5005 is aimed at RAM owners who want a straightforward, durable upgrade to their stock air filter. It suits drivers who prioritize long service intervals, simple DIY maintenance, and reduced replacement costs—especially those who drive heavy-duty RAM diesel trucks for towing, work, or daily use and prefer a sustainable alternative to disposable filters.