aFe Magnum Flow OE Air Filter

1994–2002 Dodge Ram 2500 / Ram 3500 5.9L Diesel

Part #: 31-10011

Overview

The aFe Magnum Flow OE Replacement Air Filter is engineered specifically for Dodge Ram 2500 and Ram 3500 trucks equipped with the 5.9L diesel engine from 1994 through 2002. Designed as a direct OE replacement, this high-performance air filter enhances your truck’s engine breathing by delivering superior airflow compared to the factory paper filter. It offers a reliable upgrade that improves horsepower and torque without sacrificing filtration efficiency, making it an excellent choice for both daily drivers and performance enthusiasts.

Featuring a Pro DRY S synthetic media, this panel-style air filter is washable and reusable, allowing for multiple cleaning cycles and extended service life. Its durable construction and advanced sealing technology ensure a tight, leak-free fit that protects your engine from harmful contaminants while maintaining consistent performance over time.

Key Features

The Magnum Flow OE Replacement Air Filter combines innovative materials and design to maximize airflow and filtration efficiency. Key features include:

• Outflows stock paper filters to improve horsepower and torque
• Constructed with a 100% polyurethane frame on all sides for durability and long filter life
• Pro DRY S synthetic media with three layers of progressively finer mesh for maximum airflow and filtration
• Washable and reusable design supports multiple cleaning cycles, reducing replacement frequency
• Progressive bump seal design ensures a perfect, leak-free fit in the airbox
• Rounded pleat design increases usable filter surface area for enhanced airflow and dust capacity
• Non-oiled synthetic media requires no oil for cleaning, simplifying maintenance
• Soft urethane sealing surface conforms to uneven filter housings, eliminating the need for gaskets or sealants
• Full 360-degree urethane frame construction provides OE-style fit and excellent filter strength

Construction & Design

The aFe Magnum Flow OE air filter is built with a robust 100% polyurethane frame that resists cracking and deformation over time, ensuring a secure fit and long-lasting performance. The Pro DRY S media consists of three layers of synthetic mesh arranged progressively from coarse to fine, allowing the filter to maintain high airflow rates even as it collects dirt. This layered design also enhances dust-holding capacity, extending the interval between cleanings.

The filter’s rounded pleat geometry increases the effective surface area, promoting better airflow and filtration efficiency. The integrated urethane bump seal is engineered to maintain a tight, leak-proof seal throughout the filter’s service life, preventing unfiltered air from entering the engine. This pliable sealing surface adapts to irregularities in the airbox, eliminating the need for additional gaskets or sealants.

Performance & Sound

By significantly improving airflow over the stock paper filter, the Magnum Flow OE air filter helps your Dodge Ram’s engine breathe more freely. This results in enhanced throttle response, increased horsepower, and improved torque delivery. The filter’s design also supports consistent performance even as it accumulates dirt, thanks to its progressive media layers. While the filter itself does not alter exhaust sound, the improved airflow can contribute to a more responsive engine feel.

Installation & Fitment

Installation is straightforward and requires no modifications. The Magnum Flow OE Replacement Air Filter is designed to fit directly into the factory airbox of 1994–2002 Dodge Ram 2500 and Ram 3500 models with the 5.9L diesel engine, matching OE dimensions and sealing surfaces. Simply remove the old filter and replace it with the aFe filter, ensuring the urethane bump seal seats properly for a leak-free fit. Routine maintenance involves washing and drying the filter according to aFe’s cleaning instructions, then reinstalling it for continued performance.

What's Included

• One aFe Magnum Flow Pro Dry S OE Replacement Air Filter (Part #31-10011)
• Installation instructions and cleaning guidelines

Ideal For

This air filter is perfect for Dodge Ram 2500 and 3500 owners seeking a durable, high-flow replacement for their factory air filter. It suits daily drivers, work trucks, and performance enthusiasts who want improved engine breathing without the hassle of oiling or frequent replacements. Its washable and reusable design makes it a cost-effective upgrade for long-term use.

aFe POWER (Advanced FLOW Engineering) offers dyno-proven intake, filtration, and exhaust upgrades aimed at measurable performance gains. The brand’s lineup is geared toward enthusiasts looking for better airflow, improved sound, and durable materials—from cold air intakes to stainless exhaust systems for street and track applications.