Dorman 594-660 Engine Harmonic Balancer

Engine Harmonic Balancer for Buick and Chevrolet

Dorman 594-660 is a direct replacement engine harmonic balancer built for confirmed applications on the Buick Encore, Chevrolet Trax, and Chevrolet Sonic. It uses a stress-resistant rubber bond to help absorb engine vibration and support smoother engine operation.

Key Features

• Direct replacement harmonic balancer for OE-style fit and function
• Stress-resistant rubber bond helps absorb crankshaft vibration
• Steel construction for durability
• Black finish
• 5 pulley grooves for serpentine belt applications
• Standard replacement grade
• Part number: 594-660

Detailed Description

This Dorman harmonic balancer is engineered for vehicles that use a serpentine drive belt and a 5-groove pulley design. It is a direct replacement for the original engine harmonic balancer and is built to meet stringent tensile and impact strength standards for long-term durability. For shoppers searching for a harmonic balancer for 2020-2021 Buick Encore, 2020-2021 Chevrolet Trax, or 2020 Chevrolet Sonic, 594-660 provides a fitment-specific solution. It also covers 2017-2019 Buick Encore and 2018-2019 Chevrolet Sonic with a 6-rib serpentine belt. The steel body, 6.17 inside diameter, 5.75 outside diameter, and 2.4 depth support proper installation on the listed applications.

What It Helps Address

• Engine vibration from a worn or damaged harmonic balancer
• Crankshaft vibration control concerns
• Noise or imbalance related to a deteriorated rubber bond
• Fitment issues when replacing the original balancer on listed Buick Encore and Chevrolet models
• Serpentine belt drive concerns tied to a worn pulley surface

Installation Notes and Tips

Verify the vehicle year, make, model, and belt configuration before installation. This part uses one mounting hole, has no keyway, and does not include a center bolt, mounting hardware, or degree markings. Confirm the pulley groove count and dimensions against the original component before assembly. Fits 2020-2021 Buick Encore, N/A; Fits 2020-2021 Chevrolet Trax, N/A; Fits 2020 Chevrolet Sonic, N/A; Fits 2017-2019 Buick Encore, N/A, w/6 Rib Serpentine Belt; Fits 2018-2019 Chevrolet Sonic, N/A, w/6 Rib Serpentine Belt.

Quality Assurance

Dorman manufactures this replacement harmonic balancer to meet stringent standards for tensile and impact strength, supporting durability in everyday engine service. Part number 594-660 is built as a standard replacement for the listed Buick and Chevrolet applications.