Dayco PB1190N Engine Harmonic Balancer

Overview of Dayco PB1190N Engine Harmonic Balancer

The Dayco Premium OEM Replacement Balancer PB1190N is engineered for reliable performance in a range of GM and related vehicles. Designed to meet OEM specifications, this engine harmonic balancer supports smooth engine operation and accessory drive efficiency.

• Overall outside diameter: 195.50 mm (7.697 inches)
• Grey iron outer ring for durability
• Two integrated serpentine pulleys with 4 and 6 grooves respectively
• Neutral counterweight balance, no counterweight included
• Crank bore diameter: 37.60 mm (1.481 inches)
• No crank trigger or exciter plate included
• Hardware and installation instructions not included

About the Premium OEM Replacement Balancer Product Line

The Dayco Premium OEM Replacement Balancer line is designed to provide direct-fit replacements that adhere closely to original equipment specifications. This ensures compatibility and performance consistency for vehicles requiring precise harmonic balancing. The PB1190N model is part of this line, offering a balance of durability and fitment accuracy for various GM and related makes.

Detailed Product Description

The PB1190N engine harmonic balancer features a grey iron outer ring that helps dampen engine vibrations and extends component life. It includes two serpentine pulleys—one with 4 grooves and the other with 6 grooves—both measuring 191 mm (7.520 inches) in diameter, designed to drive multiple engine accessories efficiently. The balancer has a neutral counterweight balance, meaning it does not include additional counterweights, suitable for engines that require this specification. The crank bore diameter is precisely 37.60 mm (1.481 inches), ensuring a secure fit on compatible crankshafts. This part does not include a crank trigger or exciter plate, hardware, or installation instructions, so professional installation is recommended.

Compatible Vehicles and Applications

• Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab models
• Common fitments include Chevrolet Silverado 1500, GMC Sierra 2500 HD, Cadillac Escalade, Hummer H2, and Isuzu Ascender
• Compatible with models such as Chevrolet Avalanche 1500, GMC Yukon XL 2500, and Chevrolet Suburban 3500 HD
• Designed for use in engines requiring a neutral balance harmonic balancer without timing marks or exciter plates

Installation Notes and Tips

• Ensure crank bore diameter matches 37.60 mm (1.481 inches) for proper fitment
• Professional installation is recommended due to absence of hardware and instructions
• Verify pulley groove counts (4 and 6 grooves) to match accessory belt requirements
• Check for compatibility with vehicle’s harmonic balancer specifications before installation

Quality Assurance and Warranty

Dayco’s Premium OEM Replacement Balancer line is manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details for part number PB1190N are not provided, Dayco products typically come with a limited warranty against defects in materials and workmanship. For exact warranty terms, consult the product documentation or manufacturer.