Factory Hellcat supercharger pin bushings are a known weak point — injection-molded plastic that wears prematurely, causing the rattle, whine, or noise that's often mistaken for a failing bearing. FAS Motorsports Carbon Composite Pin Bushings are a precision-engineered, direct OEM replacement for 2.4L, 2.7L, and 3.0L IHI Hellcat superchargers, built to eliminate that failure point for good.
Heavy-duty construction to handle high boost and RPM Eliminates noise & rattle for a smoother, quieter ride.
Includes a complete set of 8 bushings for easy installation. Trusted by racers and enthusiasts, FAS Motorsports leads the Hellcat performance aftermarket with proven solutions that keep your supercharger reliable at stock or high-horsepower levels.
The FAS Motorsports Upgraded Carbon Composite Pin Bushings are significantly better than the OEM injection-molded counterparts because they completely re-engineer the material properties and physical tolerances of the drive assembly. When pushing high boost or elevated RPMs on the 2.4L, 2.7L, or 3.0L IHI Hellcat superchargers, the weak material choices of the factory design quickly fail. The in-house carbon composite structure outperforms injection-molded units across several key categories:
Advanced Material Composition
- OEM Plastic: Factory bushings use a standard injection-molded nylon or plastic compound. Under intense heat and high-boost environments, this factory plastic becomes malleable, distorts, and compresses out of shape.
- FAS Carbon Composite: Built from a rugged, structural full carbon composite material. Carbon composites inherently possess a much higher tensile strength and thermal stability, meaning they will not soften, deform, or melt under extreme engine bay temperatures and punishing rotational forces.
Elimination of the "Sloppy" Factory Fit
- OEM Injection Molding: Mass-produced injection molding requires looser tolerances to easily pop the parts out of a manufacturing mold. This leaves a loose, sloppy gap between the factory pin and the bushing socket right from the start.
- FAS Precision Tuning: These custom-engineered replacements feature a self-clearance, light press-fit design. This tight, ultra-precise footprint closes up the sloppy tolerance gaps entirely, stopping the premature wear cycle dead in its tracks.
Curing the Infamous Supercharger Rattle
- The Issue: When factory molded plastics degrade and ovalize, the supercharger's drive pins begin to slap around inside their pockets. This generates a harsh metallic chatter or a sound like "marbles in a can" that is often misdiagnosed as catastrophic bearing failure.
- The Fix: By utilizing a dense carbon-fiber weave matrix, the upgraded parts absorb the severe rotational impacts without transferring noise. They function as a permanent silent pin replacement set, maintaining smooth, quiet operation over a projected lifespan of 80,000 miles even under heavy track abuse.