Description
aFe POWER Supercharger Power Pulley Kit with Hub – 3.10" (78.75mm)
Unlock additional boost and horsepower from your factory supercharged HEMI engine with the aFe POWER 3.10" Supercharger Power Pulley Kit. Designed to increase supercharger speed by reducing pulley diameter, this bolt-on upgrade delivers an estimated +1.5 PSI (±0.5) boost increase, resulting in noticeably stronger acceleration and enhanced overall engine performance.
Every pulley is precisely CNC-machined from 6061-T6 billet aluminum, offering exceptional strength, lightweight characteristics, and superior balance. A black hard anodized finish ensures long-lasting durability, while the laser-etched aFe POWER logo and size marking provide a clean, professional appearance.
The included hub is manufactured from 17-4 stainless steel, delivering unmatched structural integrity, corrosion resistance, and a perfect press-fit to the supercharger snout. Each kit includes premium hardware—screws, washers, and threadlocker—for a secure, reliable installation.
No smaller belt is required, and tuning is recommended to maximize performance gains. For best results, aFe POWER advises professional installation due to the specialized tools required for factory pulley removal.
Engineered to OE-level precision and performance, this pulley kit provides a seamless upgrade for Hellcat, Redeye, Demon, TRX, Trackhawk, and other 6.2L supercharged HEMI-equipped vehicles.
Key Features
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Pulley Diameter: 3.10" (Ø78.75mm)
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Boost Increase: Approximately +1.5 PSI (±0.5)
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CNC-machined 6061-T6 billet aluminum pulley
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Black hard-anodized finish with laser-etched logo and size
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CNC-machined 17-4 stainless steel hub for maximum strength
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Includes all hardware: screws, washers, and threadlocker
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No smaller belt required
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Tuning recommended for optimal performance
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Professional installation required due to specialized pulley removal tools
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Not CARB exempt—not legal for sale or use in California
Vehicle Fitment
Dodge – 6.2L Supercharged HEMI
• 2018 Challenger SRT Demon
• 2015–2022 Challenger SRT Hellcat
• 2019–2022 Challenger Hellcat Redeye & Widebody
• 2023 Jailbreak models
• 2020–2023 SRT Super Stock
• 2015–2020 Charger SRT Hellcat
• 2020–2023 Charger Hellcat Widebody & Redeye
• 2022–2023 Jailbreak models
Jeep – 6.2L Supercharged HEMI
• 2018–2021 Grand Cherokee Trackhawk
Ram – 6.2L Supercharged HEMI
• 2021–2025 Ram 1500 TRX
Dodge SUV
• 2021 & 2023–2025 Durango SRT Hellcat
The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.
