Engineered specifically for 2017 through 2019 Chevrolet Silverado and GMC Sierra 2500/3500 heavy-duty trucks powered by the 6.6L Duramax L5P turbo diesel V8 engine, the aFe Power Momentum HD Cold Air Intake System with Pro DRY S Filter (Part # 51-74008) provides a high-capacity sealed breathing solution requiring zero cleaning oils.

Featuring a durable cross-linked polyethylene (XLPE) rotomolded housing that encloses a massive washable synthetic dry filter with 3 layers of progressive media, this system flows up to 59% better than stock while protecting against under-hood heat soak.

Key Features & Benefits

• Dyno-Proven Power Gains: Delivers maximum increases of +15 horsepower and +37 lb-ft of torque.
• Sealed Rotomolded Housing: Heavy-duty XLPE polymer enclosure insulates against power-robbing engine bay heat soak.
• Oil-Free Pro DRY S Filter: Synthetic dry filter element features three progressive layers requiring no cleaning sprays or oiling—simply wash and reuse.
• Clear Inspection Window: Transparent viewing window allows quick visual filter condition checks without disassembling the air box.

Technical Specifications

• Manufacturer / Brand: advanced FLOW engineering (aFe Power)
• Manufacturer Part Number / SKU: 51-74008 (Momentum HD Series)
• Product Type: Sealed Cold Air Intake Performance System
• Filter Element Type: Conical 360° Radial-Flow, Oil-Free Synthetic (Pro DRY S Media)
• Housing Material: Cross-Linked Polyethylene (XLPE) Rotomolded Plastic
• Truck Compatibility: 2017–2019 GM 2500 / 3500 Heavy Duty (Duramax L5P)
• Engine Platform: 6.6L Duramax L5P V8 Turbo Diesel
• Core Requirement: None
• Warranty: aFe Limited Lifetime Warranty

Vehicle Fitment & Technical Installation Notes

• 2017–2019 GM 2500 / 3500 – 6.6L Duramax L5P Turbo Diesel
• Installation Tip: Direct bolt-on design utilizes factory mounting locations for a quick and simple installation. Tighten all band clamps securely. Note: Not currently CARB exempt; verify local emissions compliance for street use.