Banks Power Ram-Air Cold Air Intake System

2003–2007 Dodge Ram 2500/3500 5.9L Cummins

Part #: 42145-D

Overview

The Banks Ram-Air Cold Air Intake System is engineered specifically for the 2003 to 2007 Dodge Ram 2500 and 3500 equipped with the 5.9L Cummins engine. Designed to replace the factory intake, this system delivers significantly improved airflow, enhancing engine efficiency and performance without sacrificing reliability. Ideal for diesel enthusiasts seeking cooler intake temperatures, reduced exhaust gas temperatures, and improved fuel economy, the Ram-Air system combines durability with advanced airflow technology.

By drawing in cooler, denser outside air through an enclosed cold-air box, the Banks Ram-Air system reduces smoke and lowers exhaust gas temperatures, contributing to cleaner combustion and better mileage. Its robust design accommodates engine movement, ensuring long-lasting service life and consistent performance under demanding conditions.

Key Features

Every aspect of the Banks Ram-Air Cold Air Intake System is crafted to maximize airflow and filtration efficiency while maintaining factory-level durability. Key features include:

• Flows up to 62% more air than the stock intake, outperforming competitors like Volant and AIRAID
• Enclosed cold-air box design that isolates intake air from hot engine bay temperatures
• Exclusive 4-1/2" bellows that flex to accommodate engine movement, preventing damage and ensuring reliability
• Large filter area with a cotton gauze dry filter element that traps dirt and debris effectively while extending service intervals
• Giant outlet and multiple large side and bottom inlets for superior airflow
• Reduces exhaust gas temperatures (EGTs) and sooty black smoke for cleaner operation
• Improves fuel economy by delivering cooler, denser air to the engine
• Extensively flowbench tested and dyno proven for validated performance gains
• Backed by a 5-year limited warranty for peace of mind

Construction & Design

The Banks Ram-Air system features a rugged, enclosed air filter housing that protects the intake from heat soak and contaminants. The housing is engineered with large side and bottom inlets to maximize cold air capture while maintaining a sealed environment. The intake incorporates a unique 4-1/2" flexible bellows section, an industry-exclusive design that allows the system to move with the engine, preventing stress and potential damage to components.

The dry cotton gauze filter element is designed for high-flow filtration, capturing the most dirt and debris while requiring fewer cleanings compared to conventional filters. This combination of materials and design ensures durability and consistent performance in harsh diesel truck environments.

Performance & Sound

By significantly increasing airflow—up to 62% over stock—the Banks Ram-Air Cold Air Intake System enhances engine breathing, which can lead to improved throttle response and overall power delivery. Cooler intake air reduces exhaust gas temperatures and black smoke emissions, contributing to cleaner combustion and better fuel efficiency. While designed primarily for performance and efficiency, the system maintains a subtle, refined intake sound that complements the Cummins diesel’s natural tone without excessive noise.

Installation & Fitment

This intake system is a direct-fit upgrade for 2003–2007 Dodge Ram 2500 and 3500 models equipped with the 5.9L Cummins engine. Installation requires no permanent modifications and utilizes factory mounting points and hardware for a straightforward bolt-on process. The flexible bellows accommodate engine movement, ensuring a secure fit and long-term durability without the need for additional adjustments.

What's Included

• Enclosed cold-air intake housing with large side and bottom inlets
• Exclusive 4-1/2" flexible bellows section
• High-flow cotton gauze dry air filter element
• All necessary mounting hardware and clamps
• Detailed installation instructions

Ideal For

The Banks Ram-Air Cold Air Intake System is perfect for Dodge Ram 2500 and 3500 owners who want to improve their 5.9L Cummins diesel’s airflow, reduce exhaust gas temperatures, and increase fuel economy without compromising reliability. It is especially suited for daily drivers, towing enthusiasts, and diesel performance seekers who demand a durable, factory-quality intake upgrade that delivers measurable gains and extended filter service intervals.