Engineered specifically for 3rd Generation (2007.5–2009) Dodge Ram 2500 and 3500 trucks powered by the 6.7L 24-Valve Cummins turbo diesel, the Banks Power Ram-Air Cold Air Intake System (42175-D) delivers maximum mass air density to the Holset variable-geometry turbocharger (VGT). Rather than pulling turbulent, hot engine compartment air like exposed open-element filters, the Ram-Air system utilizes a fully enclosed cold-air box with giant side and bottom inlet ports to capture high-density ambient air and shield the induction charge from under-hood heat soak.

The system incorporates an oversized dome-shaped, multi-layer dry synthetic air filter that delivers high-efficiency particulate capture without requiring filter oil or chemical cleaners. To handle the torque twist and vibration characteristic of the inline-six Cummins engine, Banks integrates an exclusive 4.5-inch flexible EPDM bellows coupler. This allows normal engine movement without stressing the airbox mounting brackets, pulling on sensor harnesses, or cracking the intake tract.

Key Features & Benefits

• 50% Airflow Gain Over Stock: Streamlined internal contours and an oversized outlet reduce restriction, delivering greater air density to reduce turbo lag and lower exhaust gas temperatures (EGTs).
• Oil-Free Synthetic Dry Filter: Multi-layer dry synthetic media traps fine dust and soot particles without oiling, eliminating the risk of MAF/IAT sensor fouling and simplifying maintenance.
• Thermal Isolation Enclosure: Fully enclosed roto-molded polymer housing blocks radiant engine bay heat, keeping intake air temperatures (IATs) consistently lower under heavy towing loads.
• 4.5-Inch Flexible Bellows Coupler: Absorbs engine torque flex and vibration, preventing duct damage, broken mounting points, and coupler disconnects.
• Error-Free Sensor Calibration: Retains factory mass airflow and intake air temperature sensor geometry, preventing check engine lights and fault codes on stock or modified ECM calibrations.
• Direct Bolt-On Fitment: Engineered to bolt directly to factory 3rd Gen chassis mounting locations without cutting, trimming, or drilling.

Technical Specifications

• Manufacturer Part Number / SKU: 42175-D (Ram-Air Series)
• Truck Platform: 3rd Generation Dodge Ram Heavy Duty (DR/DH Platform)
• Engine Platform: 2007.5–2009 Dodge Ram 6.7L 24V Cummins Turbo Diesel
• Filter Media Type: Multi-Layer Synthetic Dry Media (Oil-Free, Washable & Reusable)
• Airflow Improvement: Outflows Factory Intake by Up to +50%
• Housing Style: Fully Enclosed Roto-Molded High-Density Polymer Airbox
• Flexible Coupler Size: 4.5-Inch Molded EPDM Bellows
• Street Legal Status: 50-State Emissions Compliant (CARB E.O. D-161-103)
• Warranty: Banks Power 5-Year Limited Warranty on Housing & Hardware / Lifetime on Filter

Vehicle Fitment & Installation Notes

• 2007.5–2009 Dodge Ram 2500 (3rd Gen) – 6.7L 24V Cummins Turbo Diesel
• 2007.5–2009 Dodge Ram 3500 (3rd Gen) – 6.7L 24V Cummins Turbo Diesel
• Fits Model Years: 2007.5, 2008, 2009
• Fitment Notice: Compatible with 3rd Generation Dodge Ram 6.7L trucks only. Does not fit 2003–2007 5.9L Cummins models or 2010+ 4th Generation Ram trucks.
• Installation Tip: When connecting the 4.5-inch bellows between the airbox and the turbo intake elbow, align the bellows in a relaxed, neutral position before torquing the hose clamps to ensure full flex travel under engine acceleration torque.