Dayco PB1105N Engine Harmonic Balancer

Overview of Dayco Premium OEM Replacement Balancer PB1105N

The Dayco Premium OEM Replacement Balancer PB1105N is engineered for reliable performance in select Chevrolet, GMC, and Oldsmobile vehicles. Designed as an engine harmonic balancer, it helps maintain engine stability and reduce vibrations for smoother operation.

• Compatible with Chevrolet Astro, C1500, C2500, S10, and more
• Neutral counterweight balance with no counterweight
• Constructed with a grey iron outer ring for durability
• Includes timing marks for precise engine timing
• Three bolt hole configuration for secure mounting

Product Features and Specifications

This engine harmonic balancer features a crank bore diameter of 1.245 inches (31.60 mm) and an overall outside diameter of 6.142 inches (156.00 mm). The balancer has a nose outside diameter of 1.763 inches (44.78 mm) and an overall width of 2.780 inches (70.60 mm). The ring width measures 1.280 inches (32.49 mm). It does not include integrated pulleys, hardware, or installation instructions, and it lacks a crank trigger or exciter plate. The balancer is designed with timing marks to assist in accurate engine timing adjustments.

About the Premium OEM Replacement Balancer Line

The Dayco Premium OEM Replacement Balancer line focuses on delivering components that meet original equipment manufacturer specifications. This ensures compatibility and performance consistency for vehicles requiring precise engine harmonic balancing. The PB1105N is part of this line, providing a direct replacement solution for specific Chevrolet, GMC, and Oldsmobile models without compromising engine integrity.

Applications and Problem Solving

• Reduces engine vibrations that can cause premature wear
• Helps maintain proper crankshaft alignment and timing
• Prevents damage to engine components caused by harmonic imbalance
• Addresses issues related to engine noise and rough idling
• Supports smooth operation in Chevrolet Astro, GMC Jimmy, and Oldsmobile Bravada engines

Installation Notes and Tips

Installation of the Dayco PB1105N requires proper alignment of the three bolt holes and timing marks. Since hardware and installation instructions are not included, it is recommended to use OEM hardware and consult a professional or factory service manual for torque specifications and installation procedures. Ensure the crank bore and nose outside diameter measurements match the engine specifications before installation.

Quality Assurance and Warranty

Dayco's Premium OEM Replacement Balancer line is manufactured to meet stringent quality standards, using durable grey iron material for the outer ring to withstand engine stresses. While specific warranty details are not provided, Dayco products typically adhere to industry standards for reliability and performance. Verify warranty coverage with the product documentation or supplier.