aFe 50-74008 Momentum HD Pro 10R Cold Air Intake for 17-19 GM 6.6L Duramax L

Vehicle Fitment

• 2017-2019 Chevrolet Silverado 2500 HD (V8 6.6L Duramax L5P diesel)
• 2017-2019 Chevrolet Silverado 3500 HD (V8 6.6L Duramax L5P diesel)
• 2017-2019 GMC Sierra 2500 HD (V8 6.6L Duramax L5P diesel)
• 2017-2019 GMC Sierra 3500 HD (V8 6.6L Duramax L5P diesel)

Features

• Momentum HD high-flow cold air intake engineered for diesel performance and increased airflow
• Pre-oiled Pro 10R air filter with ten layers of progressive cotton gauze media for maximum filtration and airflow
• Massive 1,000 CFM 360° radial flow filter design extends service intervals and improves flow
• One-piece sealed housing with auxiliary air inlet to draw cooler outside air
• Clear sight window for quick visual inspection of the air filter without disassembly
• CAD-designed, dyno-tuned roto-molded intake tube for optimized airflow and throttle response
• Premium stainless-steel T-bolt clamps and reinforced silicone couplings for secure fitment
• Urethane plug included to block auxiliary inlet for cold weather use
• Direct bolt-on installation - no cutting or drilling required

Specifications

• Part Number: 50-74008
• Brand: aFe Power
• Series: Momentum HD Pro 10R
• Filter Type: Pre-oiled Pro 10R cotton gauze
• Filter Size: ~1,000 CFM 360° radial flow
• Estimated Airflow Increase: Up to ~70% over stock intake
• Estimated Performance Gains: Up to +15 HP and +37 lb-ft torque
• Construction: One-piece sealed XLPE housing & dyno-tuned intake tube
• Fitment: Direct-fit for 2017-2019 GM 6.6L Duramax L5P diesel engines
• Emissions: Not CARB exempt - not legal for sale/use in California or CARB-equivalent states

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 50-74008 Momentum HD Pro 10R Cold Air Intake System is a performance-oriented upgrade engineered for heavy-duty GM trucks equipped with the 6.6-liter Duramax L5P diesel engine from 2017 through 2019. This intake replaces the restrictive factory air system with a sealed, high-flow design built around a massive pre-oiled Pro 10R air filter that provides approximately 1,000 CFM of airflow and significantly improved filtration efficiency. The one-piece sealed housing with auxiliary air inlet draws in cooler outside air, helping improve engine breathing, throttle response, and overall performance potential.

Featuring a CAD-designed, dyno-tuned roto-molded intake tube and premium hardware, the 50-74008 enhances airflow by up to around 70% over stock and delivers dyno-proven gains of up to +15 HP and +37 lb-ft of torque. A clear sight window makes routine filter inspection fast and simple, and the included urethane plug lets you block the auxiliary inlet in colder conditions. Installation is straightforward with a direct bolt-on setup that uses factory mounting points - no cutting or drilling required. Note: this intake is **not CARB exempt** and is **not legal for sale or use in California or CARB-equivalent emissions states**.