ATP Parts 102066 Engine Harmonic Balancer

OE Replacement Harmonic Balancer

ATP Parts 102066 is an OE Replacement Balancer built to restore crankshaft vibration control and belt alignment on compatible GM applications. It is a standard replacement harmonic balancer with a 6.4375 in. outside diameter, 1.3125 in. inside diameter, 1.625 in. depth, and a 3-groove pulley for serpentine drive systems.

Compatible with select Chevrolet Cavalier, Pontiac Sunfire, Oldsmobile Alero, Pontiac Grand Am, Chevrolet Malibu, Buick Skylark, Oldsmobile Achieva, Oldsmobile Cutlass Calais, Oldsmobile Cutlass Supreme, Pontiac Grand Prix, and Oldsmobile Calais applications, ATP Parts 102066 is built for direct replacement service. This part cross-references Pioneer Automotive Industries DA-1460 for the same application.

Key Features

• OE Replacement Balancer for crankshaft vibration damping
• 6.4375 in. outside diameter and 1.625 in. depth
• 1.3125 in. inside diameter for listed applications
• 3 pulley grooves for serpentine belt routing
• 3 mounting holes
• Standard replacement grade
• ATP Parts 102066 cross-references common aftermarket and OE numbers

Detailed Description

The harmonic balancer mounts to the crankshaft hub and uses an internal damping layer to reduce engine vibration while keeping the belt drive aligned. Over time, the damping material can deteriorate, allowing the outer pulley section to shift and create belt misalignment. When that happens, replacement is the correct repair. ATP Parts 102066 follows the OE replacement format for a direct-fit service part on the listed Chevrolet, Pontiac, Oldsmobile, and Buick vehicles.

Common Problems This Part Can Address

• Crankshaft vibration at idle or under load
• Belt misalignment on serpentine drive systems
• Wobbling or shifted pulley movement
• Noise from the front of the engine
• Wear related to a deteriorated balancer damping layer

Installation Notes and Tips

Verify the outside diameter, inside diameter, groove count, and mounting-hole pattern against the original balancer before installation. Inspect the crankshaft snout, pulley alignment, and belt condition at the same time, since a worn belt or damaged front accessory drive can shorten service life. Bolt and washer are not included.

Quality Assurance

ATP Parts OE Replacement Balancer 102066 is built to match original fit and function for the listed applications, helping restore normal engine operation after balancer failure.