ATP Parts
OE Replacement Balancer

ATP Parts 102284 Engine Harmonic Balancer

Brand ATP Parts 102284
Product line OE Replacement Balancer
Fits Buick and Pontiac · 65 vehicles

OE replacement balancer. Fits and functions like the original part for a direct replacement.

Standard replacement. Restores normal engine operation after harmonic balancer failure.

Harmonic balancer. Absorbs crankshaft vibrations to help keep belt alignment steady.

Cross-references 594312, 12563265 and 12563282 for the same application. See all 7.

$295.45Free shipping
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OE Replacement Harmonic Balancer

ATP Parts 102284 is an OE Replacement Balancer built to restore crankshaft vibration control and belt alignment in the engine. It is a direct-fit engine harmonic balancer for select Buick and Pontiac applications, including Buick LaCrosse, Buick Lucerne, Pontiac Grand Prix, Buick LeSabre, Buick Park Avenue, and Pontiac Bonneville.

The ATP Parts OE Replacement Balancer line focuses on fit and function that match the original component, making ATP Parts 102284 a practical choice when replacing a worn or damaged balancer on a 6-groove serpentine drive system.

Key Features

  • Engine harmonic balancer for crankshaft vibration damping
  • Standard replacement grade for OE-style service
  • 2 mounting holes
  • 2 pulley grooves
  • Serpentine drive belt type
  • Inside diameter: 1.125 in. (29 mm)
  • Outside diameter: 5.625 in. (143 mm)
  • Depth: 1.75 in. (44.2 mm)
  • ATP Parts 102284 cross-references 594312 and 12563265 for the same application

Detailed Description

An engine harmonic balancer uses an internal damping layer to reduce crankshaft vibration while keeping the accessory drive pulley aligned. Over time, the rubber or fluid damping material can deteriorate, allowing the outer pulley section to shift and creating belt misalignment. When that happens, the balancer should be replaced to help protect the crankshaft and restore normal engine operation. ATP Parts 102284 is engineered as an OE Replacement Balancer for vehicles that use a serpentine belt setup and a 6-groove balancer configuration.

Fits 2005-2009 Buick Allure, N/A. Fits 2005-2009 Buick LaCrosse, N/A. Fits 2006-2008 Buick Lucerne, N/A. Fits 2004-2008 Pontiac Grand Prix, N/A. Fits 2002-2005 Buick LeSabre, N/A. Fits 2000-2005 Buick Park Avenue, N/A. Fits 2000-2005 Pontiac Bonneville, N/A. Fits 2000-2001 Buick LeSabre, N/A.

What It Helps Address

  • Crankshaft vibration from a worn balancer
  • Belt misalignment caused by pulley shift
  • Accessory drive noise related to harmonic balancer wear
  • Visible deterioration in the damping layer
  • Engine operation issues tied to a broken balancer

Installation Notes and Tips

Verify pulley groove count, outside diameter, and inside diameter before installation. This part is for serpentine belt applications and does not include bolt and washer hardware. Inspect the crankshaft snout, belt condition, and adjacent pulleys during replacement to confirm the new balancer seats correctly and the accessory drive tracks properly.

Quality Assurance

ATP Parts OE Replacement Balancers are built to fit and function like the original part, helping restore normal engine operation after replacement. ATP Parts 102284 is listed with direct interchange references including 594312 and 12563265.

This part fits 65 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2009BuickAllureCXL3.8LV6GASN/APioneer Availability: Available to Order; OE Replacement Balancer
2009BuickLaCrosse3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2009BuickLaCrosse3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2008BuickAllureCXL3.8LV6GASN/APioneer Availability: Available to Order; OE Replacement Balancer
2008BuickLaCrosse3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2008BuickLaCrosse3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2008BuickLucerne3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2008BuickLucerne3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2008PontiacGrand Prix3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2008PontiacGrand Prix3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2007BuickAllureCXL3.8LV6GASN/APioneer Availability: Available to Order; OE Replacement Balancer
2007BuickLaCrosse3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2007BuickLaCrosse3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2007BuickLucerne3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2007BuickLucerne3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2007PontiacGrand Prix3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2007PontiacGrand Prix3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2006BuickAllureCXL3.8LV6GASN/APioneer Availability: Available to Order; OE Replacement Balancer
2006BuickLaCrosse3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2006BuickLaCrosse3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2006BuickLucerne3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2006BuickLucerne3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2006PontiacGrand Prix3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2006PontiacGrand Prix3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2005BuickAllureCXL3.8LV6GASN/APioneer Availability: Available to Order; OE Replacement Balancer
2005BuickLaCrosse3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2005BuickLaCrosse3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2005BuickLeSabre3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2005BuickLeSabre3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2005BuickPark Avenue3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2005BuickPark Avenue3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2005PontiacBonneville3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2005PontiacBonneville3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2005PontiacGrand Prix3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2005PontiacGrand Prix3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2004BuickLeSabre3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2004BuickLeSabre3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2004BuickPark Avenue3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2004BuickPark Avenue3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2004PontiacBonneville3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2004PontiacBonneville3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2004PontiacGrand Prix3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2004PontiacGrand Prix3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2003BuickLeSabre3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2003BuickLeSabre3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2003BuickPark Avenue3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2003BuickPark Avenue3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2003PontiacBonneville3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2003PontiacBonneville3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2002BuickLeSabre3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2002BuickLeSabre3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2002BuickPark Avenue3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2002BuickPark Avenue3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2002PontiacBonneville3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2002PontiacBonneville3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2001BuickLeSabreLimited3.8LV6GASN/APioneer Availability: Available to Order; OE Replacement Balancer
2001BuickPark Avenue3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2001BuickPark Avenue3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2001PontiacBonneville3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2001PontiacBonneville3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2000BuickLeSabreLimited3.8LV6GASN/APioneer Availability: Available to Order; OE Replacement Balancer
2000BuickPark Avenue3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2000BuickPark Avenue3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
2000PontiacBonneville3.8LV6N/A6 Groove Serpentine Engine Harmonic Balancer with an Outer Diameter of 7.07 in; OE Replacement Balancer
2000PontiacBonneville3.8LV6N/AFitment: Engine Harmonic Balancer with 6 groove Qty, for Serpentine part type and 7.07 inch outer diameter.; OE Replacement Balancer
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
594312125632651256328224505177125632665DA-7015PB1434-N