Dayco PB1208N Engine Harmonic Balancer

Dayco Premium OEM Replacement Balancer PB1208N

The Dayco PB1208N is a premium OEM replacement harmonic balancer for select Chevrolet, GMC, and Pontiac applications. It is built with a cast iron outer ring, neutral balance, and timing marks for accurate engine service and dependable crankshaft damping.

Key Features

• Premium OEM Replacement Balancer from Dayco
• Part number PB1208N for direct reference and ordering
• Neutral balance design with no counterweight
• Cast iron outer ring for durable engine operation
• Timing marks included for service and setup
• Crank bore: 1.245 in. (31.60 mm)
• Overall outside diameter: 6.142 in. (156.00 mm)
• Overall width: 2.343 in. (59.50 mm)
• Ring width: 1.280 in. (32.49 mm)
• Three bolt holes, no integrated pulleys, no crank trigger/exciter plate

Product Details

Dayco’s Premium OEM Replacement Balancer line focuses on direct-fit engine service parts that match original-style dimensions and function. The PB1208N harmonic balancer is specified for engines that require a neutral-balance design and timing marks, making it a practical choice for maintenance, repair, or restoration work on vehicles such as Chevrolet Caprice, Chevrolet Monte Carlo, Chevrolet El Camino, Pontiac Grand Prix, and related GM platforms. This part cross-references ATP 102060 and Dorman 594-142 for the same application.

What It Helps Address

• Crankshaft vibration and torsional oscillation
• Worn or damaged harmonic balancer assemblies
• Timing mark visibility during ignition or engine service
• Noise or imbalance concerns from a deteriorated balancer
• Replacement needs on GM V8 applications using a neutral-balance balancer

Installation Notes and Tips

Verify crank bore, nose outside diameter, overall diameter, and bolt-hole pattern before installation. This PB1208N does not include hardware, installation instructions, a woodruff key, or an integrated pulley. Confirm that the engine calls for a neutral-balance harmonic balancer and that the timing marks align with the vehicle’s service requirements. Fitment includes 1978-1993 Chevrolet Caprice, 1978-1988 Chevrolet Monte Carlo, 1978-1987 Chevrolet El Camino, 1980-1981 Chevrolet Camaro, 1980-1985 Chevrolet Impala, 1985-1986 Chevrolet C10/C20/K10/K20, 1987 Chevrolet R10/R20/V10, 1985-1986 GMC C1500/C2500/K1500/K2500, 1987 GMC R1500/R2500/V1500, 1980-1987 Pontiac Grand Prix, 1978-1981 Pontiac LeMans, and additional listed GM applications.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built for OE-style fit and serviceability, with application-specific dimensions and timing marks to support accurate engine maintenance. The PB1208N is a direct replacement harmonic balancer for confirmed fitment applications.