The Pontiac Fiero Harmonic Balancer absorbs crankshaft twist so the midengine sports car runs smoothly and avoids shaft breakage. It bolts to the crank snout with a steel hub, a resilient rubber ring and an outer inertia mass, the trio working together to let the ring move out of phase with firing pulses, nullifying torsional shake. V-grooves around the rim still spin the belt, but the magic is vibration control. This Harmonic Balancer carries timing marks for tune ups. Over the production run, Pontiac offered two main styles, a straightforward inertia version fitted to most four-cylinder and V6 Fiero engines and a heavier weight-assisted unit that pairs added mass with crank counterweights for balance at higher rpm, yet both rely on the same rubber-bonded architecture. The Pontiac design matched Fiero crank dynamics. Heat, oil and road salt can harden or soften the rubber, and once it degrades the Harmonic Balancer can slip or separate, letting vibration return and threatening the crank, so a failing Harmonic Balancer should be replaced, because factory tuning assumed stock power and performance upgrades may exceed its design window, making inspection of the Harmonic Balancer a wise habit for every Pontiac enthusiast keen to keep a Fiero humming.
Each OEM Pontiac Fiero Harmonic Balancer we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.