Dayco PB1018SS Engine Harmonic Balancer

Dayco Race Performance Balancer PB1018SS

The Dayco PB1018SS Race Performance Balancer is an engine harmonic balancer built for Chevrolet and GMC V8 applications that need stable crankshaft control and accurate timing reference. It features a hub-weighted counterweight balance, a steel outer ring, and timing marks for straightforward setup on compatible engines.

Race Performance Balancer Features

• Part number PB1018SS from Dayco’s Race Performance Balancer line
• Hub weighted counterweight balance for performance engine use
• Steel outer ring for durability under demanding operating conditions
• Timing marks included for ignition and engine service reference
• 3-bolt hole design with a 1.599 in. / 40.60 mm crank bore
• 7.963 in. overall outside diameter and 2.686 in. overall width
• No integrated pulleys, crank trigger plate, or woodruff key included

Product Details

Dayco PB1018SS is an engine harmonic balancer for Chevrolet and GMC truck, van, and passenger car applications listed in the fitment data, including 1970-1990 Chevrolet C10, K20, K30, Caprice, Impala, Monte Carlo, Corvette, and 1979-1990 GMC C/K and P-series models. This balancer uses a steel outer ring and hub-weighted balance to support crankshaft damping while keeping timing marks visible for service work. The PB1018SS also cross-references Dorman 594-010R and Pioneer 872026 for the same application.

Common Uses

• Replacing a worn or damaged harmonic balancer on Chevrolet C10, C20, C30, K10, and K20 applications
• Restoring timing mark visibility on GMC C2500, C3500, K3500, and P3500 engines
• Addressing crankshaft vibration concerns in classic Chevrolet and GMC V8 builds
• Supporting engine service on 1970s-1990 Chevrolet and GMC trucks, vans, and passenger cars

Installation Notes

Verify crank bore, nose outside diameter, and bolt-hole pattern before installation. This balancer does not include hardware, installation instructions, a crank trigger/exciter plate, or a woodruff key. Confirm pulley and accessory alignment, and use the correct installation tools for the engine platform. Fitment includes applications such as 1987-1988 Chevrolet R30, 1988-1989 Chevrolet K3500, 1986 GMC C3500, and 1990 Chevrolet C1500.

Quality Assurance

Dayco Race Performance Balancer components are built for performance-oriented engine service and dimensional consistency. The PB1018SS is specified with timing marks and a steel outer ring to support accurate setup on listed Chevrolet and GMC applications.