aFe 50-74001 Momentum HD Pro 10R Cold Air Intake for 01-04 Chevy/GMC 6.6L

Vehicle Fitment

• 2001-2004 Chevrolet Silverado 2500 HD (V8 6.6L Duramax LB7 diesel)
• 2001-2004 Chevrolet Silverado 3500 (V8 6.6L Duramax LB7 diesel)
• 2001-2004 GMC Sierra 2500 HD (V8 6.6L Duramax LB7 diesel)
• 2001-2004 GMC Sierra 3500 (V8 6.6L Duramax LB7 diesel)

Features

• Momentum HD sealed cold air intake engineered for diesel performance and airflow gains
• Massive Pro 10R pre-oiled air filter with 10 layers of progressive cotton gauze media
• 1,000 CFM 360° radial flow design for maximum surface area and efficiency
• One-piece sealed housing with built-in auxiliary air scoop to draw cooler outside air
• Clear sight window for quick visual filter inspection without disassembly
• CAD-designed, dyno-tuned roto-molded intake tube for optimized airflow dynamics
• Premium stainless-steel T-bolt clamps and reinforced silicone couplings for secure fitment
• Washable and reusable air filter media for low maintenance
• Urethane plug included for blocking auxiliary inlet in cold weather applications

Specifications

• Part Number: 50-74001
• Brand: aFe Power
• Series: Momentum HD Pro 10R
• Filter Type: Pre-oiled Pro 10R cotton gauze
• Filter Size: ~1,000 CFM 360° radial flow
• Airflow Increase: ~32% over stock intake
• Estimated Gains: Up to +24 HP and +44 lb-ft torque
• Construction: One-piece sealed housing with plastic intake tube and premium hardware
• Fitment: Direct-fit for 2001-2004 GM 6.6L Duramax LB7 engines
• Emissions: 46-state legal (CARB EO# D-550-18) - *not legal without exemption in CA/CO/NY/ME*

Included Components

• 1x Momentum HD sealed intake housing
• 1x Roto-molded intake tube
• 1x Pro 10R pre-oiled performance air filter
• Premium stainless-steel T-bolt clamps
• Reinforced silicone couplings
• Urethane auxiliary inlet plug
• All required mounting hardware

Product Description

The aFe Power 50-74001 Momentum HD Pro 10R Cold Air Intake System is a high-flow performance upgrade developed specifically for 2001-2004 Chevrolet Silverado and GMC Sierra heavy-duty trucks equipped with the 6.6-liter Duramax LB7 diesel engine. This sealed intake system replaces the restrictive factory airbox with a large 1,000 CFM 360° Pro 10R pre-oiled filter to deliver dramatically improved airflow - approximately 32% over stock - resulting in enhanced throttle response and elevated performance potential.

Built around a one-piece sealed housing with an integrated auxiliary air scoop and clear sight window, the 50-74001 draws in cooler, denser air while resisting heat soak. The CAD-designed, dyno-tuned intake tube and reinforced silicone couplings help optimize airflow efficiency and durability. Premium stainless-steel T-bolt clamps and a washable/reusable Pro 10R filter make for a secure, long-lasting installation that's easy to maintain. With estimated gains of up to +24 HP and +44 lb-ft of torque, this intake system is ideal for diesel enthusiasts looking to extract more power and torque from their Duramax LB7. Note: this part is 46-state legal with CARB Executive Order D-550-18 but may require specific exemptions for use in California, Colorado, New York, Maine, and other CARB-equivalent states.