Dayco PB81461SS Engine Harmonic Balancer

Dayco Race Performance Balancer PB81461SS

The Dayco PB81461SS Race Performance Balancer is an engine harmonic balancer built for select GM V6 applications that need stable crankshaft control and accessory drive support. This Race Performance Balancer 8 Rib unit combines a hub-weighted counterweight balance with integrated serpentine pulley sections for performance-focused street and race use.

Key Features

• Brand: Dayco Race Performance Balancer 8 Rib
• Part number: PB81461SS
• Engine harmonic balancer with hub weighted counterweight balance
• Crank trigger/exciter plate provision included
• Steel outer ring for durability
• Two integrated serpentine pulleys
• Pulley 1: 6-groove serpentine, 6.938 in. outside diameter
• Pulley 2: 8-groove serpentine, 6.938 in. outside diameter
• Crank bore: 1.373 in. / 34.87 mm
• Nose outside diameter: 1.934 in. / 49.12 mm
• Overall outside diameter: 6.938 in. / 176.20 mm
• Overall width: 2.264 in. / 57.50 mm

Product Details

The PB81461SS is part of Dayco’s Race Performance Balancer 8 Rib line, a product family focused on crankshaft damping and accessory drive stability in higher-demand applications. This balancer uses a steel outer ring and hub-weighted balance design to support consistent operation while retaining the pulley layout needed for serpentine belt systems. It is a direct-fit style engine harmonic balancer for select Pontiac Grand Prix, Buick Park Avenue, Chevrolet Impala, Chevrolet Monte Carlo, Buick Regal, Pontiac Bonneville, Buick LeSabre, Buick Riviera, and Oldsmobile LSS applications listed below.

Fits 1997-2007 Pontiac Grand Prix, N/A. Fits 1996-2005 Buick Park Avenue, N/A. Fits 2004-2005 Chevrolet Impala, N/A. Fits 2004-2005 Chevrolet Monte Carlo, N/A. Fits 1997-2004 Buick Regal, N/A. Fits 1996-2003 Pontiac Bonneville, N/A. Fits 2000 Buick LeSabre, N/A. Fits 1996-1999 Buick Riviera, N/A. Fits 1996-1999 Oldsmobile LSS, N/A.

Common Uses

• Crankshaft vibration control in performance or rebuilt engines
• Replacement for worn or damaged harmonic balancers
• Restoring serpentine belt alignment and accessory drive function
• Supporting crank trigger/exciter plate setups
• Addressing pulley wear, wobble, or imbalance concerns

Installation Notes

Verify crank bore, nose diameter, overall diameter, and pulley configuration before installation. This balancer does not include hardware, installation instructions, timing marks, or a Woodruff key. Confirm crank trigger/exciter plate requirements and belt routing against the vehicle’s existing setup before assembly. For best results, inspect the crank snout, pulley alignment, and surrounding accessory components during replacement.

Quality Assurance

Dayco manufactures this Race Performance Balancer 8 Rib unit to meet the dimensional and application requirements listed for the PB81461SS. The steel outer ring, hub-weighted balance design, and integrated pulley arrangement reflect a performance-oriented construction for the specified GM applications.