Dayco PBO1662SS10 Engine Harmonic Balancer

Dayco Race Performance Harmonic Balancer

The Dayco Race Performance 10% Overdrive harmonic balancer is built for select GM performance applications that need precise crankshaft damping and accessory drive control. Part number PBO1662SS10 is engineered with a neutral balance, steel outer ring, and integrated serpentine pulley layout for compatible Cadillac CTS, Chevrolet Camaro, and Chevrolet Corvette applications.

Key Features

• Dayco Race Performance 10% Overdrive series
• Part number PBO1662SS10
• Neutral balance design with no counterweight
• Steel outer ring construction
• Timing marks included for setup reference
• 3 bolt hole crankshaft mounting pattern
• 3 integrated pulleys with serpentine drive profiles
• Crank bore: 1.480 in. (37.59 mm)
• Nose outside diameter: 2.130 in. (54.10 mm)
• Overall outside diameter: 8.620 in. (218.94 mm)
• Overall width: 4.500 in. (114.30 mm)

Detailed Description

Dayco PBO1662SS10 is a race performance engine harmonic balancer for GM vehicles that use a 3-bolt crankshaft interface and integrated serpentine accessory drive. The overdrive pulley arrangement is part of Dayco’s Race Performance 10% Overdrive line, which is aimed at applications that require a revised accessory drive ratio while maintaining crankshaft damping and timing reference visibility. This part is listed for 2009-2015 Cadillac CTS, 2012-2015 Chevrolet Camaro, and 2009-2013 Chevrolet Corvette applications.

Compatible With 2009-2015 Cadillac CTS, N/A; 2012-2015 Chevrolet Camaro, N/A; and 2009-2013 Chevrolet Corvette, N/A. The PBO1662SS10 uses a steel outer ring, neutral counterweight balance, and timing marks to support accurate engine assembly and service work. Dayco PBO1662SS10 is a direct-fit performance balancer for select GM V8 applications that require the specified crank bore, nose diameter, and pulley configuration.

What It Helps Address

• Crankshaft vibration control in performance engine builds
• Accessory drive ratio changes for overdrive applications
• Timing reference visibility during engine setup
• Replacement of a worn or damaged harmonic balancer
• Fitment issues on select 3-bolt GM crankshaft applications

Installation Notes and Tips

Verify crank bore, nose diameter, bolt pattern, and pulley alignment before installation. Hardware is not included, and installation instructions are not included. Confirm timing mark orientation and accessory belt routing against the vehicle’s service information before final assembly. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Dayco Race Performance components are built for performance-oriented engine applications and dimensional consistency. Part number PBO1662SS10 is manufactured with a steel outer ring and integrated timing marks for service accuracy.