aFe Momentum HD Cold Air Intake System

2007–2009 Dodge Ram 2500 / Ram 3500 5.7L / 6.7L Cummins

Part #: 51-72003

Overview

The aFe Momentum HD Cold Air Intake System is a precision-engineered performance upgrade designed specifically for 2007 to 2009 Dodge Ram 2500 and Ram 3500 trucks equipped with 5.7L gas or 6.7L Cummins diesel engines. This system replaces the factory airbox and filter with a custom roto-molded housing and a high-flow Pro DRY S air filter, delivering cooler, denser air to the engine for improved combustion efficiency.

Ideal for truck owners seeking a reliable and straightforward performance enhancement, the Momentum HD intake system boosts horsepower, torque, and throttle response while maintaining excellent filtration to protect your engine. It offers a balanced upgrade that enhances power and fuel economy without compromising engine safety or requiring complex modifications.

Key Features

Engineered for durability and performance, the Momentum HD Cold Air Intake System includes:

• Custom CAD-designed roto-molded housing made from heat-resistant black cross-linked polyethylene for superior thermal insulation and long-lasting durability
• Large clear sight window for quick and easy filter inspection without removing the airbox
• High-quality billet aluminum crankcase fitting for secure and straightforward installation
• CAD-engineered air scoop that efficiently directs cool ambient air to the performance air filter
• Sealed intake design featuring a radial flow Pro DRY S air filter with three oil-free synthetic media layers for excellent airflow and 99.2% filtration efficiency
• Premium stainless steel clamps and silicone couplings for secure, vibration-resistant connections
• One-piece airbox and heat shield that seals tightly against the hood liner to isolate the filter from engine heat
• 3-angle velocity stack to smooth airflow transition and maximize power gains
• Designed for quick, bolt-on installation with no cutting, drilling, or modifications required

Construction & Design

The Momentum HD intake system features a roto-molded housing crafted from black cross-linked polyethylene, a heat-resistant plastic that helps maintain cooler intake air temperatures for optimal engine performance. The one-piece airbox and heat shield are constructed from rugged 16-gauge powder-coated steel, providing durability and effective thermal isolation from engine heat.

Additional design elements include a large clear inspection window for easy maintenance checks and a billet aluminum crankcase fitting that enhances installation and functionality. Premium stainless steel hardware and silicone couplings ensure a secure, long-lasting fit that withstands vibration and harsh operating environments.

Performance & Sound

By increasing the volume of cooler, denser air entering the engine, the aFe Momentum HD Cold Air Intake System improves combustion efficiency, resulting in noticeable gains in horsepower and torque. The radial flow Pro DRY S filter media allows approximately twice the airflow of a stock air filter while maintaining a 99.2% filtration efficiency rating, protecting your engine from harmful contaminants.

This intake system also enhances throttle response and can contribute to improved fuel economy. Additionally, it produces a subtle yet aggressive induction sound that enhances the driving experience without excessive noise, providing a refined performance tone.

Installation & Fitment

The Momentum HD Cold Air Intake System is designed for a direct bolt-on installation that replaces the factory airbox and filter with no cutting, drilling, or modifications required. The kit includes all necessary hardware and detailed instructions, allowing installation in an hour or less using basic hand tools.

The sealed airbox design fits perfectly under the hood and seals tightly against the hood liner to keep hot engine air away from the intake. This system is engineered specifically to fit 2007 to 2009 Dodge Ram 2500 and Ram 3500 trucks with 5.7L gas or 6.7L Cummins diesel engines, ensuring a precise and secure fit.

What's Included

• Roto-molded intake housing with clear inspection window
• Pro DRY S radial flow performance air filter with synthetic media
• Billet aluminum crankcase fitting
• CAD-designed air scoop
• Silicone couplings and premium stainless steel clamps
• Powder-coated steel one-piece airbox and heat shield
• All necessary mounting hardware
• Comprehensive installation instructions

Ideal For

This intake system is perfect for Dodge Ram 2500 and Ram 3500 owners from model years 2007 to 2009 who want to enhance their truck’s performance without extensive modifications. It suits enthusiasts and daily drivers alike looking for a reliable, efficient upgrade that improves power, throttle response, and fuel economy while maintaining excellent engine protection. Its straightforward installation makes it an excellent choice for DIY mechanics and budget-conscious drivers seeking a high-quality cold air intake solution.

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.