Dayco PB1050N Engine Harmonic Balancer

Dayco PB1050N Harmonic Balancer

The Dayco PB1050N is a premium OEM replacement harmonic balancer for classic Chevrolet and GMC V8 applications. It is built with a ring-weighted counterweight balance, grey iron outer ring, and timing marks for accurate engine service and dependable crankshaft damping.

Key Features

• Premium OEM Replacement Balancer from Dayco
• Ring weighted counterweight balance for vibration control
• Grey iron outer ring construction
• 3-bolt hole design
• Timing marks included for service alignment
• 203.00 mm (7.993 in.) overall outside diameter
• 59.50 mm (2.343 in.) overall width
• 31.60 mm (1.245 in.) crank bore
• 44.78 mm (1.763 in.) nose outside diameter
• No integrated pulley, trigger plate, hardware, or woodruff key included

Product Details

Dayco’s Premium OEM Replacement Balancer line is focused on direct-fit engine service parts that match original-style dimensions and function. The PB1050N harmonic balancer is specified for a wide range of Chevrolet C10, K10, K20, K30, Caprice, Impala, Monte Carlo, El Camino, and GMC Jimmy applications, including 1970s and 1980 model-year trucks and passenger cars. This part number, PB1050N, is a direct replacement choice for owners servicing engines that require an 8-inch diameter counterweighted ring balancer.

This part cross-references ATP 102045 and Dorman 594-016 for the same application.

Common Uses

• Restoring crankshaft vibration damping on worn or damaged balancers
• Replacing cracked outer rings or deteriorated elastomer components
• Correcting timing mark visibility during ignition setup
• Addressing belt alignment issues on engines that use a separate pulley system
• Servicing Chevrolet and GMC V8 engines in classic truck and car platforms

Installation Notes

Verify crank bore, nose diameter, bolt-hole pattern, and overall diameter before installation. The PB1050N does not include hardware, installation instructions, a crank trigger/exciter plate, or a woodruff key, so reuse or source the required engine-specific components separately. Confirm timing mark orientation and engine balance requirements during assembly. Fits 1976-1980 Chevrolet C10, N/A; Fits 1980 Chevrolet C20, N/A; Fits 1976-1980 Chevrolet C20 Suburban, N/A; Fits 1979-1980 Chevrolet G20, N/A; Fits 1979-1980 Chevrolet G30, N/A; Fits 1980 Chevrolet K10, N/A; Fits 1975 Chevrolet K10, N/A; Fits 1980 Chevrolet K20, N/A; Fits 1975 Chevrolet K20, N/A; Fits 1976-1980 Chevrolet K20, N/A; Fits 1980 Chevrolet K20 Suburban, N/A; Fits 1975 Chevrolet K20 Suburban, N/A; Fits 1976-1980 Chevrolet K20 Suburban, N/A; Fits 1980 Chevrolet K30, N/A; Fits 1979-1980 GMC C1500, N/A; Fits 1980 GMC C2500 Suburban, N/A; Fits 1979-1980 GMC G2500, N/A; Fits 1979-1980 GMC G3500, N/A; Fits 1979-1980 GMC K1500, N/A; Fits 1979-1980 GMC K1500 Suburban, N/A; Fits 1979-1980 GMC K2500, N/A; Fits 1979-1980 GMC K2500 Suburban, N/A; Fits 1979-1980 GMC K3500, N/A; Fits 1976-1979 Chevrolet C20, N/A; Fits 1976-1979 Chevrolet K10, N/A; Fits 1976-1979 Chevrolet K10 Suburban, N/A; Fits 1977-1979 Chevrolet K30, N/A; Fits 1979 Chevrolet K5 Blazer, N/A; Fits 1979 GMC C2500, N/A; Fits 1979 GMC C3500, N/A; Fits 1979 GMC G1500, N/A; Fits 1979 GMC Jimmy, N/A; Fits 1976 GMC Jimmy, N/A; Fits 1976-1978 Chevrolet C30, N/A; Fits 1975-1978 Chevrolet G20, N/A; Fits 1975-1978 Chevrolet G30, N/A; Fits 1975-1978 Chevrolet K5 Blazer, N/A; Fits 1975-1978 GMC G25, N/A; Fits 1975-1978 GMC G35, N/A; Fits 1977-1978 GMC Jimmy, N/A; Fits 1975 GMC Jimmy, N/A; Fits 1977 Chevrolet P10, N/A; Fits 1976 Chevrolet Caprice, N/A; Fits 1976 Chevrolet El Camino, N/A; Fits 1970 Chevrolet El Camino, N/A; Fits 1976 Chevrolet G10, N/A; Fits 1976 Chevrolet Impala, N/A; Fits 1976 Chevrolet Malibu, N/A; Fits 1976 Chevrolet Monte Carlo, N/A; Fits 1976 Chevrolet P30, N/A; Fits 1976 GMC G15, N/A; Fits 1972-1975 Chevrolet Bel Air, N/A; Fits 1973-1975 Chevrolet Caprice, N/A; Fits 1970-1971 Chevrolet Caprice, N/A; Fits 1974-1975 Chevrolet El Camino, N/A; Fits 1973-1975 Chevrolet Impala, N/A; Fits 1970-1971 Chevrolet Impala, N/A; Fits 1975 Chevrolet K10 Suburban, N/A; Fits 1974-1975 Chevrolet Malibu, N/A; Fits 1970-1975 Chevrolet Monte Carlo, N/A; Fits 1971 Chevrolet Bel Air, N/A

Quality Assurance

Dayco manufactures this balancer as a premium OEM replacement component with original-style dimensions, timing marks, and ring-weighted balance for service accuracy on Chevrolet and GMC applications.