Dayco PB1297N Engine Harmonic Balancer

Overview of Dayco Premium OEM Replacement Balancer PB1297N

The Dayco Premium OEM Replacement Balancer PB1297N is engineered for reliable performance in Toyota 4Runner, Pickup, and T100 models. Designed to meet OEM specifications, this engine harmonic balancer ensures smooth engine operation and vibration control.

• Compatible with Toyota 4Runner, Pickup, and T100 vehicles
• Part number PB1297N for precise identification
• Constructed with a cast iron outer ring for durability
• Includes two integrated pulleys: one V-belt and one serpentine
• Features timing marks for accurate engine timing
• Neutral counterweight balance design
• Overall outside diameter of 159 mm (6.260 inches)
• Four bolt holes for secure mounting

Detailed Product Features and Specifications

This Dayco engine harmonic balancer features a neutral counterweight balance, which means it does not include additional counterweights, maintaining engine balance without added mass. The crank bore measures 31.00 mm (1.221 inches), ensuring a precise fit on the crankshaft. The balancer has an overall width of 57.80 mm (2.276 inches) and a nose outside diameter of 45.00 mm (1.772 inches). It integrates two pulleys: a single-groove V-belt pulley with a 159 mm (6.260 inches) diameter and a four-groove serpentine pulley measuring 150 mm (5.906 inches) in diameter. The outer ring is made of cast iron, providing strength and resistance to wear. Timing marks are included to assist with proper engine timing during installation.

About the Premium OEM Replacement Balancer Product Line

The Dayco Premium OEM Replacement Balancer line is designed to offer direct-fit replacements that meet original equipment manufacturer standards. This product line focuses on delivering components that maintain engine balance and vibration control, essential for engine longevity and performance. The PB1297N model exemplifies this approach by combining durable materials and precise engineering tailored for Toyota engines.

Common Applications and Problem Resolution

• Reduces engine vibration caused by worn or damaged harmonic balancers
• Restores proper pulley alignment for accessory drive belts
• Prevents crankshaft damage due to imbalance
• Ensures accurate engine timing with integrated timing marks
• Replaces balancers that have failed due to material fatigue or wear

Installation Notes and Tips

Installation of the Dayco PB1297N harmonic balancer requires careful alignment with the crankshaft using the four bolt holes. Note that hardware and installation instructions are not included, so refer to the vehicle’s service manual for torque specifications and installation procedures. Ensure the crank bore and nose outside diameter match the engine specifications for a secure fit. Proper installation is critical to maintain engine balance and prevent premature wear.

Quality Assurance and Warranty Information

Dayco’s Premium OEM Replacement Balancer products are manufactured to meet stringent quality standards, ensuring durability and performance. While specific warranty details are not provided here, Dayco typically offers coverage against manufacturing defects. It is recommended to verify warranty terms with the product documentation or supplier.