Dayco PB1481ST Engine Harmonic Balancer

Street Performance Harmonic Balancer

The Dayco Street Performance Balancer PB1481ST is an engine harmonic balancer built for confirmed applications in select 1993-1997 Chevrolet Camaro and Pontiac Firebird models, plus several full-size GM V8 platforms from 1994-1996. It features a neutral balance design, a cast iron outer ring, and integrated serpentine pulley construction for street performance use.

Key Features

• Dayco Street Performance Balancer line for performance-oriented engine service
• Part number PB1481ST
• Neutral balance with no counterweight
• Cast iron outer ring for durable rotating assembly support
• One integrated pulley with 6 grooves and serpentine belt type
• Timing marks included for setup and service reference
• Crank bore: 1.626 in. / 41.30 mm
• Overall outside diameter: 7.520 in. / 191.00 mm
• Overall width: 1.335 in. / 33.90 mm
• 3-bolt hole design

Detailed Description

Dayco PB1481ST is a street performance harmonic balancer engineered for engines that require neutral balance and a single serpentine pulley arrangement. The cast iron outer ring and 7.520-inch overall diameter provide a robust OE-style layout, while the included timing marks support ignition and engine service work. This part cross-references Pioneer 872013 for the same application. Compatible vehicle coverage includes 1993-1997 Chevrolet Camaro, 1993-1997 Pontiac Firebird, 1994-1996 Chevrolet Caprice, 1994-1996 Chevrolet Impala, 1994-1996 Buick Roadmaster, 1994-1996 Cadillac Fleetwood, 1994-1996 Cadillac Commercial Chassis, and 1994 Chevrolet Commercial Chassis.

Vehicle Fitment

• Fits 1993-1997 Chevrolet Camaro, N/A
• Fits 1993-1997 Pontiac Firebird, N/A
• Fits 1994-1996 Buick Roadmaster, N/A
• Fits 1994-1996 Cadillac Commercial Chassis, N/A
• Fits 1994-1996 Cadillac Fleetwood, N/A
• Fits 1994-1996 Chevrolet Caprice, N/A
• Fits 1994-1996 Chevrolet Impala, N/A
• Fits 1994 Chevrolet Commercial Chassis, N/A

Common Uses

• Replacing a worn or damaged harmonic balancer on a neutral-balance GM V8 engine
• Restoring proper crankshaft damping and belt drive alignment
• Addressing timing mark visibility issues during ignition setup
• Correcting pulley wear on a 6-groove serpentine accessory drive
• Servicing street performance builds that use the listed Chevrolet and Pontiac platforms

Installation Notes

Verify crank bore, bolt-hole count, pulley configuration, and timing mark alignment before installation. Hardware, installation instructions, and woodruff key are not included. Confirm the engine’s balance type is neutral and match the balancer to the listed vehicle application before assembly. PB1481ST is intended for engines that use a 3-bolt harmonic balancer pattern and a single integrated serpentine pulley.

Quality Assurance

Dayco’s Street Performance Balancer line is built for performance-focused engine service with application-specific dimensions and timing marks. PB1481ST is specified with clear dimensional data and confirmed interchange support to help ensure proper fitment on the listed GM vehicles.