Fits 2003-2018 Dodge Ram 2500 and 3500 trucks equipped with the 5.9L or 6.7L Cummins turbo diesel engine.

This Fleece Performance Upper Fan Pulley Idler is engineered to replace the factory component with a more durable and aesthetically pleasing solution. Designed for precise belt alignment and smooth rotation, this idler pulley ensures your accessory drive system operates efficiently while the black contrast finish adds a custom look to your Cummins engine bay. It is a direct-fit replacement that installs into the factory location without modification.

• Direct replacement for the factory upper fan pulley/idler
• High-quality construction for long-term durability
• Distinctive black contrast finish for an upgraded engine bay appearance
• Engineered for precise belt tracking and tension
• Manufacturer Part Number: FPE-34657-BLK-SPK

Fits 1996-2001 Ford Mustang GT, GT Bullitt, and SVT Cobra models. This BBK underdrive pulley kit is designed to increase engine output by reducing the parasitic draw of belt-driven accessories. By slightly slowing down the accessory speeds, more horsepower is directed to the rear wheels without sacrificing cooling or charging efficiency.

Constructed from lightweight CNC-machined billet aluminum, these pulleys significantly reduce rotational mass compared to heavy factory steel components. This kit is a direct bolt-on replacement for the OEM pulleys and is engineered to allow the re-use of the factory-length serpentine belt for a straightforward installation.

• Increases engine efficiency by reducing accessory drag
• CNC-machined from lightweight billet aluminum to minimize rotational inertia
• 3-piece kit includes water pump, crank, and alternator pulleys
• Maintains proper cooling and charging system characteristics
• Direct bolt-on design; uses factory length serpentine belt
• Designed and manufactured in the USA
• Manufacturer Part Number: 1555

Fits select 1979-1996 Ford Mustang, F-150, F-250, and Mercury Capri (V8-5.0L). This BBK performance underdrive pulley kit is designed to increase engine output by reducing the parasitic draw of engine accessories. By slowing down the accessories and significantly reducing rotational mass compared to heavy factory steel pulleys, this kit delivers an average gain of 8-15 horsepower.

Each pulley is CNC machined from lightweight billet aluminum for maximum durability and a precision fit. These pulleys are engineered as direct bolt-on replacements for the original equipment, maintaining full cooling and charging characteristics while allowing for the reuse of the existing factory serpentine belt. This kit includes a comprehensive set of pulleys for the crankshaft, water pump, and alternator.

• Increases horsepower by reducing accessory drag and rotational weight
• CNC machined from high-strength billet aluminum
• Direct bolt-on replacement for factory pulleys
• Retains full charging and cooling functionality
• Designed and manufactured in the USA
• Manufacturer Part Number: 1553

Kit Includes: Crankshaft Pulley, Water Pump Pulley, and Alternator Pulley.

Fits 2009-2015 Cadillac CTS-V (LSA).

Engineered for high-performance LSA applications, this ATI Supercharger Drive Pulley Shell allows you to increase boost levels by spinning the supercharger faster. With a 9.77-inch diameter and a 10-groove belt profile, this pulley provides a 25% overdrive ratio compared to the factory setup. It is designed to bolt directly to an ATI Super Damper hub, offering a precise, balanced solution for forced induction engines requiring high-load durability and reliable belt alignment.

• Manufacturer Part Number: ATI916159
• Outer Diameter: 9.77 inches
• Belt Width: 10-Groove
• Overdrive Percentage: 25%
• Material: High-strength construction for high-RPM stability
• Fitment: Specifically for LSA-equipped Cadillac CTS-V models

Fits 2009-2015 Cadillac CTS-V (LSA).

This ATI Super Damper shell is engineered to provide superior harmonic dampening for the LSA engine while maintaining the factory 7.99-inch diameter. This 8-groove pulley is an ideal choice for owners looking to replace a worn factory component or those performing a build that requires the reliability of an ATI damper without altering the stock boost levels provided by the OEM pulley ratio.

Built to exacting tolerances, this drive pulley ensures proper belt alignment and long-term durability under high-load supercharged conditions. It is designed to bolt onto compatible ATI Super Damper hubs to provide a high-performance alternative to the factory cast-iron unit.

• Manufacturer Part Number: ATI916153
• Diameter: 7.99 inches (OEM Size)
• Belt Profile: 8-Groove serpentine
• Engine Compatibility: GM LSA (6.2L Supercharged V8)
• Application: Supercharger drive

Fits 2009-2015 Cadillac CTS-V models equipped with the 6.2L LSA engine.

This ATI Performance Products supercharger pulley is engineered to increase boost pressure by spinning the supercharger faster than the factory drive ratio. With a 10% overdrive configuration and a precision-machined 8.86-inch diameter, this 8-groove pulley is a critical upgrade for LSA owners seeking higher output from their forced induction system. It is designed to work seamlessly with ATI Super Dampers to provide reliable performance and belt alignment under high-load conditions.

• Manufacturer Part Number: ATI916106
• Pulley Diameter: 8.86 inches
• Overdrive Ratio: 10% over stock
• Belt Profile: 8-Groove (8-rib)
• Engine Application: GM 6.2L LSA V8
• Precision machined for exact tolerances and durability

Protect your 2022+ Subaru WRX from road debris, rocks, and mud with AMS Performance Mud Flaps. Designed to shield your vehicle's paint, undercarriage, and side sills, these mud flaps prevent damage and help keep your WRX cleaner, whether you're on the street or tackling gravel roads.

Each set is engineered for precise fitment to the factory mounting points of the 2022 and newer Subaru WRX chassis, ensuring a straightforward installation. These essential accessories help maintain your vehicle's finish and reduce paint chipping caused by tire-thrown projectiles, enhancing both appearance and longevity.

• Direct fitment for 2022+ Subaru WRX models
• Protects vehicle paint and undercarriage from road debris and splash
• Engineered for durability and effective splash reduction
• Manufacturer Part Number: AMS.50.06.0003-1

Fits 2002-2008 Mini Cooper S (R53) models.

The ALTA Lightened Crank Pulley is designed to improve engine response and increase boost pressure on the supercharged R53 platform. By replacing the heavy factory harmonic balancer with a precision-machined, lightened pulley, you reduce rotational mass, allowing the engine to rev more freely and reducing parasitic drag. The 2% oversize diameter slightly increases the drive ratio of the supercharger, providing a modest increase in boost compared to the stock configuration without the aggressive wear associated with smaller supercharger pulleys alone.

• Fits 2002-2008 Mini Cooper S (R53)
• 2% Oversize diameter for increased boost
• Reduces rotational mass for improved throttle response
• Precision machined for exact fitment
• Direct replacement for the OEM harmonic balancer
• Manufacturer Part Number: AMP-ENG-520

Fits 2002-2008 Mini Cooper S and JCW models (R53 Hatchback and R52 Convertible).

The ALTA Performance Lightened Crank Pulley is a precision-engineered upgrade designed to replace the heavy, multi-piece factory harmonic balancer. By significantly reducing rotational mass on the crankshaft, this pulley allows the engine to rev more freely and improves throttle response throughout the RPM range. Unlike underdrive pulleys, this 0% reduction version maintains the standard OEM diameter, ensuring your supercharger boost levels and accessory drive speeds remain at factory specifications.

Constructed from CNC-machined aluminum, this pulley also solves a common R53 failure point: the factory rubber-damped pulley is known to separate over time, leading to a loss of belt tension and potential engine damage. This solid, lightened design provides a permanent, reliable solution for street and track use.

• Manufacturer Part Number: AMP-ENG-500
• Size: 0% (Standard OEM Diameter)
• Material: Lightweight CNC-machined aluminum
• Fitment: Replaces factory crank pulley on 2002-2008 Mini Cooper S (Tritec engines)
• Installation: Direct bolt-on replacement

Fits 2002-2008 Mini Cooper S (R53). This ALTA 17% reduction supercharger pulley is engineered to increase boost pressure and power output for the Eaton M45 supercharger. By reducing the pulley diameter, the supercharger spins faster at any given engine RPM, delivering more air to the intake manifold for immediate gains in horsepower and torque.

• 17% reduction for significant boost pressure increases over stock
• Designed specifically for the R53 chassis Mini Cooper S
• Enhances throttle response and overall engine performance
• Manufacturer Part Number: AMP-ENG-205V2

Fits 2002-2008 Mini Cooper S.

The ALTA 15% Supercharger Reduction Pulley is a foundational performance upgrade for the first-generation supercharged Mini. By decreasing the diameter of the pulley, this component increases the rotational speed of the supercharger relative to engine RPM, resulting in higher boost pressure and a significant increase in horsepower and torque throughout the powerband.

• Product Type: Supercharger Reduction Pulley
• Reduction Size: 15%
• Compatibility: 2002-2008 Mini Cooper S (R53 Hatch and R52 Convertible models)
• Manufacturer Part Number: AMP-ENG-200V2

This 15% reduction is widely considered the ideal balance for street-driven vehicles, providing a noticeable increase in throttle response and acceleration without over-spinning the supercharger or requiring extensive fueling modifications. It is a direct replacement for the factory press-fit pulley.

The Aeromotive 28-Tooth Fuel Pump Drive Pulley (21109) is a precision-engineered component designed for high-output fueling requirements. This pulley serves as the mechanical link for belt-driven fuel pump systems, ensuring synchronized power transfer and consistent fuel delivery across the entire RPM range.

• 28-tooth configuration allows for precise drive ratio adjustments in belt-driven systems
• Manufactured with aerospace-grade tolerances to ensure minimal runout
• Engineered for use with Aeromotive belt-drive fuel pumps and compatible drive mandrels
• Robust construction designed to withstand the stresses of high-performance racing applications
• Manufacturer Part Number: 21109

Fits 2015-2024 Dodge Challenger/Charger/Durango SRT Hellcat, Jeep Grand Cherokee Trackhawk, and Ram 1500 TRX.

Increase your boost pressure and unlock horsepower with the aFe POWER Supercharger Power Pulley Kit. By reducing the pulley diameter to 2.65 inches (Ø67.25mm), this kit increases the supercharger's spin rate to provide a significant boost increase of approximately 4.5 PSI (±.5). This bolt-on upgrade is engineered to provide a perfect balance of lightweight rotation and high strength for high-output 6.2L supercharged engines.

The pulley is CNC machined from 6061-T6 billet aluminum and finished in a black hard-anodized coating with laser-etched sizing for durability. The internal hub is crafted from 17-4 stainless steel to ensure a high-strength, corrosion-resistant interface with the supercharger snout. This two-piece design allows for precise fitment and reliable power delivery under heavy load.

• Boost Increase: Approximately 4.5 PSI (±.5)
• Pulley Diameter: 2.65" (67.25mm)
• Pulley Material: CNC Machined 6061-T6 Billet Aluminum
• Hub Material: CNC Machined 17-4 Stainless Steel
• Finish: Black Hard Anodized with laser-etched logo
• Includes: Screws, washers, and thread locker
• MPN: 79-10008

Note: This kit requires ECU tuning and a smaller drive belt (Gates K100572HD) for proper operation. Specialized tools are required for factory pulley removal; professional installation is highly recommended.