CFR Performance Hellcat Supercharger Boost Pulley

2000–2025 Dodge Challenger, Charger, Durango 6.2L Hellcat

Part #: HZ-7285-PBK

Overview

The CFR Performance Hellcat Supercharger Boost Pulley 2.85" is a precision-engineered upgrade designed to increase boost pressure on select Mopar HEMI engines. This pulley is ideal for enthusiasts looking to enhance power output and throttle response without extensive modifications. By increasing the supercharger’s rotational speed, it delivers an estimated 3 to 4.5 pounds of additional boost over the factory setup, unlocking improved mid-range torque and horsepower gains.

Compatible with a broad range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L, 6.1L, 6.2L Hellcat, and 6.4L HEMI engines, this pulley offers a direct-fit solution that integrates seamlessly with factory components. Whether upgrading for street performance or preparing for further tuning, the CFR pulley provides a reliable and durable way to maximize supercharger efficiency.

Key Features

Engineered for seamless integration and lasting performance, the CFR Hellcat Supercharger Boost Pulley includes the following key features:

• 2.85" (72.39mm) pulley diameter designed to increase supercharger boost pressure
• Estimated boost gain of 3 to 4.5 psi depending on engine size and supporting modifications
• Compatible with factory 5-rib serpentine belt systems for easy installation
• Constructed from high-strength billet aluminum for superior durability and weight savings
• Finished with a black electrophoretic coating (e-coating) for corrosion resistance and a sleek appearance
• Designed to work with Metco Motorsports Hellcat Supercharger Pulley Hub (not compatible with ZPE Inc. Griptec hubs)
• Fits a wide range of Mopar HEMI engines including 5.7L, 6.1L, 6.2L Hellcat, and 6.4L variants
• Precision CNC machining ensures exact tolerances and reliable performance

Construction & Design

This boost pulley is meticulously CNC machined from billet aluminum, offering an optimal balance of strength and lightweight construction. The billet aluminum core provides exceptional resistance to wear and deformation under high-stress conditions, ensuring consistent performance over time. Its black electrophoretic coating enhances corrosion resistance while delivering a smooth, uniform finish that protects even hard-to-reach surfaces from environmental damage.

The pulley maintains factory 5-rib serpentine belt compatibility, allowing for straightforward installation without the need for belt modifications. This design focus ensures seamless integration with the existing supercharger system, preserving reliability and drivability.

Performance & Sound

By reducing the pulley diameter to 2.85 inches, this CFR Performance pulley increases the rotational speed of the Hellcat supercharger, resulting in a higher boost pressure range of approximately 3 to 4.5 psi. This boost increase translates into improved throttle response, enhanced mid-range torque, and overall horsepower gains depending on your engine’s configuration and supporting modifications.

While the pulley itself does not directly alter exhaust sound, the increased boost and power output can contribute to a more aggressive engine note under acceleration, enhancing the driving experience for performance enthusiasts.

Installation & Fitment

The CFR Hellcat Supercharger Boost Pulley is designed for direct fitment on 2000 through 2025 Dodge Challenger, Charger, and Durango models equipped with the 6.2L Hellcat engine. It fits factory 5-rib serpentine belt systems and requires no modifications to belt routing. Installation is straightforward but professional installation and tuning are highly recommended to optimize performance gains and ensure engine reliability.

Proper tuning will accommodate the increased boost levels and maintain safe air-fuel ratios, maximizing the benefits of this upgrade while protecting your engine.

What's Included

• 1 x CFR Performance 2.85" Hellcat Supercharger Boost Pulley (black e-coated billet aluminum)
• Installation hardware (if applicable)
• Instructions for fitment and recommended installation practices

Ideal For

This pulley is ideal for Mopar enthusiasts and performance builders who want to increase supercharger boost pressure on their HEMI-powered vehicles without extensive modifications. It is well-suited for street performance upgrades, weekend racers, and those preparing their vehicle for further forced induction tuning. Compatible with a wide range of Chrysler 300, Dodge Challenger, Charger, Durango, Magnum, Jeep Grand Cherokee, Wrangler, Commander, Wagoneer, and Ram 1500/2500/3500 models, it offers a versatile and effective power enhancement solution.

CFR Performance is a major automotive supplier and distributor of car and truck accessories. We are a part of a family owned and operated tradition of automotive Excellency, which dates back to the late 1970's. Since then we have put together some new and innovative products for our customers. At CFR, we use our long tradition of wisdom in automotive business and customer satisfaction to provide you with superior quality and cost effective products.