Dayco PB1190N Engine Harmonic Balancer

Dayco PB1190N Harmonic Balancer

The Dayco PB1190N is a premium OEM replacement harmonic balancer for a wide range of GM trucks, SUVs, and performance applications. It is built with a neutral balance design and dual integrated serpentine pulleys to support accessory drive operation on compatible Chevrolet, GMC, Cadillac, Buick, Hummer, Saab, and Isuzu vehicles.

Key Features

• Premium OEM Replacement Balancer from Dayco
• Neutral balance design with no counterweight
• Grey iron outer ring material for durable engine service
• Two integrated serpentine pulleys: 4-groove and 6-groove
• Crank bore measures 1.481 in. (37.60 mm)
• Overall outside diameter measures 7.697 in. (195.50 mm)
• Overall width measures 4.371 in. (111.00 mm)
• No timing marks, trigger plate, hardware, or woodruff key included

Product Details

Dayco’s Premium OEM Replacement Balancer line focuses on direct-fit engine service parts that match the original style of the application. The PB1190N harmonic balancer uses a grey iron outer ring and a neutral counterweight balance to help maintain smooth crankshaft operation while supporting the accessory drive system through its dual serpentine pulley setup. This part number, PB1190N, is commonly selected for GM V8 truck and SUV platforms, including Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Tahoe applications.

This part cross-references Dorman 594-209 for the same application.

What It Helps Address

• Crankshaft vibration caused by a worn or failing balancer
• Belt drive noise or instability from pulley wear
• Accessory drive alignment issues on compatible GM engines
• Engine vibration felt at idle or under load
• Service replacement needs for high-mileage Chevrolet and GMC trucks and SUVs

Installation Notes

Verify crank bore, pulley configuration, and overall dimensions before installation. This balancer does not include hardware, installation instructions, timing marks, or a crank trigger/exciter plate. Proper installation requires the correct engine-specific tools and torque procedure for the vehicle.

Compatible With 1999-2019 Chevrolet Silverado 1500, 1999-2019 GMC Sierra 1500, and 2000-2014 Chevrolet Tahoe applications, along with additional fitments listed for Express, Suburban, Yukon, Camaro, Colorado, Canyon, Hummer, Saab, Buick, Cadillac, and Isuzu models. Part number PB1190N is also listed for Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD applications across multiple model years.

Quality Assurance

Dayco manufactures this Premium OEM Replacement Balancer to meet the dimensional and functional requirements of the listed applications. Confirm fitment by year, make, model, and engine configuration before ordering.