aFe Momentum HD Pro DRY S Cold Air Intake System 51-74006-1 for 2011–2016 GM 6.6L Duramax LML Diesel Trucks

The Momentum HD is designed around a massive Pro DRY S performance 360 degree radial flow air filter with 3-layers of progressive synthetic media providing 99.2% cumulative efficiency. The unique filter-to-housing interface (patent pending) allows for maximum filter size which increases the available air volume while simplifying the installation process. The air filter is wrapped in reinforced metal providing maximum strength to prevent filter collapse. Momentum HD Cold Air Intake System w/ Pro DRY S Filter GM Diesel Trucks 11-16 V8-6.6L (td) LML

• Produces an Astonishing +22 HP / +57 ft./lbs. Torque Max Gains
• No Cutting Or Drilling On Factory Parts For Easy Installation
• High Quality 1-Piece Sealed Housing w/Auxiliary Air Inlet
• Unique Filter-To-Housing Interface For Easy Servicing
• Pro DRY S Filter Included For Maximum Convenience
• CAD-Designed Roto-Molded Intake Tube
• Out Produces Factory Intake By 52%

The aFe Momentum HD Pro DRY S Cold Air Intake System is engineered for 2011–2016 GM diesel trucks equipped with the 6.6L Duramax LML V8 engine. Part number 51-74006-1 combines a high-volume, sealed intake housing with a 360-degree radial-flow Pro DRY S air filter to improve airflow while maintaining effective filtration. The three-layer progressive synthetic media provides 99.2% cumulative filtration efficiency, and the reinforced metal filter wrap helps protect against filter collapse under demanding operating conditions.

Its patent-pending filter-to-housing interface maximizes usable filter area and simplifies filter servicing. The one-piece sealed housing includes an auxiliary air inlet, while the CAD-designed roto-molded intake tube is shaped to support smooth, efficient airflow. Testing indicates gains of up to 22 horsepower and 57 lb.-ft. of torque, with the system flowing up to 52% more air than the factory intake. Installation requires no cutting or drilling of factory components, making this a practical upgrade for street, towing, and work-truck applications.

• Fitment: Designed for 2011–2016 GM diesel trucks with the 6.6L Duramax LML V8 engine, including the Chevrolet Silverado 2500 HD applications listed below.
• Emissions: EPA compliant. CARB Executive Order D-550-18 applies where required.
• Service note: The Pro DRY S filter is washable and reusable when serviced according to the manufacturer’s instructions.

Fitment data includes select 2011–2014 Chevrolet Silverado 2500 HD models. Verify the vehicle year, engine, and emissions requirements before installation.

What’s Included

The package includes the aFe Momentum HD sealed intake housing, Pro DRY S air filter, roto-molded intake tube, and required installation components.

Features:

• High airflow performance: Delivers tested gains of up to 22 horsepower and 57 lb.-ft. of torque.
• Efficient filtration: Three-layer Pro DRY S synthetic media provides 99.2% cumulative efficiency.
• Sealed intake housing: One-piece construction with an auxiliary air inlet helps protect incoming air from engine-bay heat.
• Easy installation and service: No cutting or drilling is required, while the unique filter-to-housing interface simplifies filter maintenance.

Fitments:
2011 Chevrolet Silverado 2500 HD LT
2011 Chevrolet Silverado 2500 HD LTZ
2011 Chevrolet Silverado 2500 HD WT
2011 Chevrolet Silverado 3500 HD LT
2011 Chevrolet Silverado 3500 HD LTZ
2011 Chevrolet Silverado 3500 HD WT
2011 GMC Sierra 2500 HD Denali
2011 GMC Sierra 2500 HD SLE
2011 GMC Sierra 2500 HD SLT
2011 GMC Sierra 2500 HD WT
2011 GMC Sierra 3500 HD Denali
2011 GMC Sierra 3500 HD SLE
2011 GMC Sierra 3500 HD SLT
2011 GMC Sierra 3500 HD WT
2012 Chevrolet Silverado 2500 HD LT
2012 Chevrolet Silverado 2500 HD LTZ
2012 Chevrolet Silverado 2500 HD WT
2012 Chevrolet Silverado 3500 HD LT
2012 Chevrolet Silverado 3500 HD LTZ
2012 Chevrolet Silverado 3500 HD WT
2012 GMC Sierra 2500 HD Denali
2012 GMC Sierra 2500 HD SLE
2012 GMC Sierra 2500 HD SLT
2012 GMC Sierra 2500 HD WT
2012 GMC Sierra 3500 HD Denali
2012 GMC Sierra 3500 HD SLE
2012 GMC Sierra 3500 HD SLT
2012 GMC Sierra 3500 HD WT
2013 Chevrolet Silverado 2500 HD LT
2013 Chevrolet Silverado 2500 HD LTZ
2013 Chevrolet Silverado 2500 HD WT
2013 Chevrolet Silverado 3500 HD LT
2013 Chevrolet Silverado 3500 HD LTZ
2013 Chevrolet Silverado 3500 HD WT
2013 GMC Sierra 2500 HD Denali
2013 GMC Sierra 2500 HD SLE
2013 GMC Sierra 2500 HD SLT
2013 GMC Sierra 2500 HD WT
2013 GMC Sierra 3500 HD Denali
2013 GMC Sierra 3500 HD SLE
2013 GMC Sierra 3500 HD SLT
2013 GMC Sierra 3500 HD WT
2014 Chevrolet Silverado 2500 HD LT
2014 Chevrolet Silverado 2500 HD LTZ
2014 Chevrolet Silverado 2500 HD WT
2014 Chevrolet Silverado 3500 HD LT
2014 Chevrolet Silverado 3500 HD LTZ
2014 Chevrolet Silverado 3500 HD WT
2014 GMC Sierra 2500 HD Denali
2014 GMC Sierra 2500 HD SLE
2014 GMC Sierra 2500 HD SLT
2014 GMC Sierra 2500 HD WT
2014 GMC Sierra 3500 HD Denali
2014 GMC Sierra 3500 HD SLE
2014 GMC Sierra 3500 HD SLT
2014 GMC Sierra 3500 HD WT
2015 Chevrolet Silverado 2500 HD High Country
2015 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD WT
2015 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD WT
2015 GMC Sierra 2500 HD Base
2015 GMC Sierra 2500 HD Denali
2015 GMC Sierra 2500 HD SLE
2015 GMC Sierra 2500 HD SLT
2015 GMC Sierra 3500 HD Base
2015 GMC Sierra 3500 HD Denali
2015 GMC Sierra 3500 HD SLE
2015 GMC Sierra 3500 HD SLT
2016 Chevrolet Silverado 2500 HD High Country
2016 Chevrolet Silverado 2500 HD LT
2016 Chevrolet Silverado 2500 HD LTZ
2016 Chevrolet Silverado 2500 HD WT
2016 Chevrolet Silverado 3500 HD High Country
2016 Chevrolet Silverado 3500 HD LT
2016 Chevrolet Silverado 3500 HD LTZ
2016 Chevrolet Silverado 3500 HD WT
2016 GMC Sierra 2500 HD Base
2016 GMC Sierra 2500 HD Denali
2016 GMC Sierra 2500 HD SLE
2016 GMC Sierra 2500 HD SLT
2016 GMC Sierra 3500 HD Base
2016 GMC Sierra 3500 HD Denali
2016 GMC Sierra 3500 HD SLE
2016 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: false
Carb Eo Number: D-550-18
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1