Engineered specifically for 2003 through 2018 Dodge Ram 2500, 3500, 4500, and 5500 trucks powered by the 5.9L and 6.7L Cummins common-rail turbo diesel engine, the Industrial Injection Billet Dual CP3 Idler Pulley (Part # 24FC08) delivers rock-solid belt stability for secondary high-pressure fuel pump configurations. Factory plastic composite and stamped-steel idler pulleys are prone to bearing failure, flange cracking, and deflection when subjected to the extreme serpentine belt loads and rapid RPM changes inherent to twin-pump competition setups.

Milled from solid billet aircraft-grade aluminum, the 24FC08 features a 3-inch ribbed configuration with precision micro-V grooves designed to maintain continuous belt tracking and eliminate belt jump. Tested and proven on competition drag and sled-pull platforms running up to 5,500 RPM and exceeding 2,000 horsepower, this pulley handles the extreme centrifugal and torsional forces generated in four-digit Cummins builds. Equipped with a heavy-duty, high-speed sealed bearing assembly, it matches the machined styling of Industrial Injection Dual CP3 pump pulleys while eliminating accessory drive failure points.

Key Features & Benefits

• Tested to 5,500 RPM & 2,000+ HP: Engineered and dyno-proven to withstand extreme engine speeds and high horsepower without bearing burnout or distortion.
• CNC-Machined Billet Aluminum: Precision-machined from solid billet stock for zero runout, superior tensile strength, and low rotational mass.
• 3-Inch Ribbed Serpentine Profile: Features deep micro-V grooves to provide consistent belt tension and prevent serpentine belts from throwing off-axis under rapid deceleration.
• High-Speed Sealed Bearing Assembly: Features heavy-duty internal bearings designed to handle increased belt preload from dual-pump routing.
• Matches Dual CP3 Billet Styling: Designed to visually complement Industrial Injection Dual CP3 drive pulleys and billet engine accessories.
• Direct Dual-Pump Replacement: Direct fit for Industrial Injection Cummins Dual CP3 kits and compatible with many aftermarket twin-pump accessory brackets.
• Zero Core Charge: Sold outright as brand-new billet hardware with no core deposit or return required.

Technical Specifications

• Manufacturer / Brand: Industrial Injection Diesel Performance
• Manufacturer Part Number / SKU: 24FC08
• Alternative Part Numbers: 24FC08-IIS / IIS-24FC08
• UPC: 840256908138
• Pulley Diameter: 3.0 Inches
• Pulley Face: Ribbed Serpentine (Multi-Groove Micro-V)
• Construction Material: CNC-Machined Billet Aircraft Aluminum
• Bearing Style: Heavy-Duty Sealed High-RPM Ball Bearing Assembly
• RPM & Horsepower Rating: Validated Up to 5,500 RPM / 2,000+ HP
• Application: Idler Pulley for Dual High-Pressure CP3 Serpentine Drive Systems
• Truck Platform: 2003–2018 Dodge Ram 2500, 3500, 4500, 5500
• Engine Platform: 5.9L & 6.7L 24V Cummins Common-Rail Turbo Diesel
• Core Requirement: None
• Warranty: Industrial Injection 1-Year Manufacturer Warranty

Vehicle Fitment & Technical Installation Notes

• 2003–2007 Dodge Ram 2500 / 3500 – 5.9L Cummins 24V Common-Rail Diesel
• 2007.5–2018 Dodge Ram 2500 / 3500 / 4500 / 5500 – 6.7L Cummins 24V Common-Rail Diesel
• Fits Model Years: 2003, 2004, 2004.5, 2005, 2006, 2007, 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
• System Notice: Designed specifically for the serpentine belt routing on trucks running an auxiliary belt-driven CP3 kit (such as Industrial Injection Dual CP3 kits). Note: For stock/single CP3 engines requiring an idler pulley replacement, use Industrial Injection SKU 24FC06.
• Installation Tip: Verify that the mounting bolt and spacer seat flush against the bearing inner race without contacting the outer rotating pulley shell. Torque to factory accessory bracket fastener specifications and check serpentine belt alignment across the crank, secondary CP3, and tensioner before starting the engine.