Dayco PB1719N Engine Harmonic Balancer

Premium OEM Replacement Balancer for Toyota and Lexus

The Dayco Premium OEM Replacement Balancer PB1719N is an engine harmonic balancer built for select Toyota, Lexus, and Scion applications. It uses a neutral balance design with timing marks and a single integrated serpentine pulley to support accurate crankshaft damping and belt drive operation.

Dayco’s Premium OEM Replacement Balancer line focuses on direct-fit replacement parts for vehicles that need OE-style dimensions and function. The PB1719N follows that approach with cast iron outer ring construction, a 6-groove pulley, and the specified crank bore and nose dimensions for the listed applications.

Key Features

• Part number PB1719N
• Engine harmonic balancer for select Toyota, Lexus, and Scion models
• Neutral balance design with no counterweight
• Cast iron outer ring material
• Integrated serpentine pulley with 6 grooves
• Timing marks included for service and alignment
• Crank bore: 30.00 mm (1.182 in.)
• Overall outside diameter: 158.00 mm (6.221 in.)
• Overall width: 39.00 mm (1.536 in.)

Detailed Description

The Dayco PB1719N harmonic balancer is a direct replacement component for engines that rely on a properly damped crankshaft and a stable accessory drive. It is listed for 2009-2019 Toyota Highlander, 2013-2018 Lexus ES300h, 2013-2018 Toyota Avalon, 2009-2018 Toyota RAV4, 2012-2017 Toyota Camry, 2011-2016 Scion tC, 2009-2015 Toyota Venza, and 2011-2013 Toyota Sienna. If you are searching for a Toyota Camry harmonic balancer, Toyota RAV4 engine harmonic balancer, or Lexus ES300h crankshaft balancer, PB1719N is the matching part number to verify.

This balancer uses a neutral counterweight balance, a cast iron outer ring, and a single integrated serpentine pulley with six grooves. It also includes timing marks, which helps with engine service and crankshaft reference during maintenance. The listed nose outside diameter, crank bore, and overall dimensions are important for proper fitment on the specified vehicles, including Toyota Highlander and Toyota Avalon applications.

What It Helps Address

• Crankshaft vibration from a worn or damaged harmonic balancer
• Belt tracking issues caused by pulley wear or runout
• Timing reference problems when timing marks are no longer clear
• Accessory drive noise related to balancer deterioration
• Fitment issues when replacing an OE-style balancer on listed Toyota, Lexus, or Scion engines

Installation Notes and Tips

• Verify engine application by year, make, and model before installation.
• Confirm crank bore, nose diameter, and pulley alignment against the original part.
• Inspect the crankshaft snout, keyway area, and belt drive components before fitting the new balancer.
• Use the correct service procedure and torque specifications for the vehicle.
• Hardware, installation instructions, and woodruff key are not included.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built as an OE-style service part for direct replacement use. PB1719N is engineered to match the listed application dimensions and pulley configuration for the confirmed fitment range. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.