CFR Performance Hellcat Supercharger Boost Pulley

2000–2026 Dodge Challenger, Charger, Durango 6.2L Hellcat

Part #: HZ-7275-PBK

Overview

The CFR Performance Hellcat Supercharger Boost Pulley 2.75" (69.85mm) is a precision-engineered upgrade designed to enhance the performance of your Hellcat-powered Dodge Challenger, Charger, or Durango. This billet aluminum pulley increases supercharger speed, delivering an estimated 4.5 to 6 pounds of additional boost over stock setups. Crafted for enthusiasts who demand reliable power gains without compromising drivability, it integrates seamlessly with the factory 5-rib serpentine belt system and is compatible with a wide range of 5.7L, 6.1L, and 6.4L HEMI engines across Chrysler, Dodge, Jeep, and Ram platforms.

Whether you’re looking to improve throttle response, increase horsepower, or enhance torque, this pulley offers a straightforward and effective solution for unlocking more potential from your HEMI engine. Its broad fitment range from 2000 through 2026 makes it a versatile choice for many Mopar performance builds.

Key Features

Engineered for durability and performance, the CFR Performance Hellcat Supercharger Boost Pulley offers these key benefits:

• 2.75" (69.85mm) pulley diameter designed to increase supercharger rotational speed and boost pressure
• Estimated boost gain of 4.5 to 6 pounds, depending on engine size and supporting modifications
• Compatible with 5.7L, 6.1L, and 6.4L HEMI engines found in Chrysler, Dodge, Jeep, and Ram vehicles
• CNC machined from billet aluminum for superior strength, precision, and lightweight construction
• Durable black electrophoretic coating (e-coating) provides corrosion resistance and a sleek finish
• 5-rib serpentine pulley design ensures factory-style fitment and belt compatibility
• Specifically designed to work with Metco Motorsports Hellcat Supercharger Pulley Hub
• Not compatible with ZPE Inc. Griptec Hellcat Supercharger Pulley Hub
• Professional installation and tuning recommended to maximize performance and maintain reliability

Construction & Design

This Hellcat Supercharger Boost Pulley is expertly CNC machined from high-strength billet aluminum, delivering exceptional durability and precise fitment. The billet construction offers a lightweight yet robust component capable of handling the increased stresses from higher boost levels. Finished with a black electrophoretic coating, the pulley resists corrosion and wear while maintaining a clean, uniform appearance over time.

The 5-rib serpentine design matches the factory belt system, allowing for a direct bolt-on installation without requiring belt modifications or additional components. This ensures a seamless integration with your vehicle’s existing setup for reliable daily driving and performance use.

Performance & Sound

By reducing the pulley diameter to 2.75 inches, this upgrade increases the rotational speed of the Hellcat supercharger, resulting in a significant boost pressure increase of approximately 4.5 to 6 pounds. This translates into improved throttle response, higher horsepower output, and enhanced torque delivery throughout the powerband. While the pulley itself does not directly alter exhaust tone, the increased engine output may contribute to a more aggressive engine sound during acceleration.

Installation & Fitment

The CFR Performance Hellcat Supercharger Boost Pulley is designed for direct fitment on 5.7L, 6.1L, and 6.4L HEMI engines installed in Dodge Challenger, Charger, and Durango Hellcat models from 2000 to 2026. Installation involves removing the factory supercharger pulley and replacing it with this billet unit, maintaining compatibility with the stock 5-rib serpentine belt system.

It is important to note that this pulley is compatible only with the Metco Motorsports Hellcat Supercharger Pulley Hub and is not compatible with the ZPE Inc. Griptec hub. Professional installation and engine tuning are strongly recommended to ensure optimal performance gains and maintain engine reliability.

What's Included

• 1 x CFR Performance Hellcat Supercharger Hemi Boost Pulley 2.75" (69.85mm)
• Installation instructions

Ideal For

This pulley is ideal for HEMI enthusiasts seeking a reliable and effective way to increase supercharger boost and overall engine performance without extensive modifications. It suits owners of Dodge Challenger, Charger, and Durango Hellcat models equipped with 6.2L engines who want enhanced street performance, weekend racing capability, or spirited driving dynamics. The pulley’s durable construction and precise engineering make it a dependable upgrade for unlocking additional power from your Hellcat supercharged HEMI.

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.