Tame crankshaft torsional vibration and keep your accessory drive spinning smoothly with the Dorman - OE Solutions Engine Harmonic Balancer 594-148. It installs as a direct-fit replacement for a wide range of GM cars and minivans — including the 1994-2005 Buick Century, 2002-2005 Buick Rendezvous, 2000-2005 Chevrolet Impala, 1995-2005 Chevrolet Monte Carlo, 1997-2005 Chevrolet Venture, 1999-2004 Oldsmobile Alero, 2001-2005 Pontiac Aztek, and 1994-2005 Pontiac Grand Am. See the Buyer's Guide tab for the complete list of 25 applications.
- Torsional damper: the hub and outer inertia ring are separated by a bonded elastomer element that absorbs and dampens the crankshaft's twisting vibrations as the engine runs.
- Accessory-belt drive surface: the pulley groove routes the engine-belt-driven accessories from the front of the crankshaft.
- Installation: presses onto the crankshaft snout at the front of the engine.
Signs the original balancer may need replacing include engine vibration, a wobbling or off-center pulley, a separated or cracked rubber ring, and belt misalignment or squeal. If a failed harmonic balancer is the cause, this Dorman unit replaces it. Diagnose the source of the symptom before installing.
Interchange: 40589352208051761 · 102065 · PC-1003 · PB1489N · 24504609 · 91176102 · DA1893 · P-GM189 · SK594148. Manufacturer part number 594-148 (also 594148).
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the harmonic balancer 594-148 do?
It mounts on the front of the crankshaft and uses a bonded elastomer element between the hub and outer ring to absorb the crankshaft's torsional vibration, while its pulley groove drives the engine's accessory belt.
How do I know if my harmonic balancer is failing?
Common signs include engine vibration, a wobbling or off-center pulley, a cracked or separated rubber ring, and belt misalignment or squeal. Diagnose the cause before replacing, as these symptoms can have other sources.
Will this fit my vehicle?
It's a direct-fit replacement for 25 GM applications, such as the 1994-2005 Buick Century, 2000-2005 Chevrolet Impala, and 1994-2005 Pontiac Grand Am. Check the Buyer's Guide tab to confirm your exact year, make, and model.
What numbers does this part interchange with?
It cross-references 40589352208051761, 102065, PC-1003, PB1489N, 24504609, 91176102, DA1893, P-GM189, and SK594148. Its manufacturer part number is Dorman 594-148.
How is the harmonic balancer installed?
It presses onto the crankshaft snout at the front of the engine. Consult the vehicle service information for the correct procedure, torque specs, and whether any fasteners may be reused.
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