HomeEngine > Cylinder Block ComponentsDorman 594-087 Engine Harmonic Balancer
Part #: 594-087

Dorman 594-087 Engine Harmonic Balancer

N/A
⚙️ 6 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$111.01Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Buick, Oldsmobile, and Pontiac, Century, Skylark, Achieva, Cutlass Ciera, Cutlass Cruiser, and Grand Am
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of the Dorman Engine Harmonic Balancer 594-087

The Dorman Engine Harmonic Balancer 594-087 is designed for reliable performance in select Buick, Oldsmobile, and Pontiac vehicles. This harmonic balancer is engineered to reduce engine vibration and protect your engine’s crankshaft, ensuring smoother operation for models like the Buick Century and Pontiac Grand Am.

  • Inside diameter: 34.87 mm
  • Outside diameter: 176 mm
  • Six pulley grooves for serpentine drive belts
  • Single mounting hole with bolt and washer included
  • Depth of 92.5 mm with degree markings for precise installation
  • Black finish for corrosion resistance
  • Includes balancer, woodruff key, and instruction sheet

Detailed Product Description

The Dorman 594-087 engine harmonic balancer is a critical component for maintaining engine balance and reducing torsional vibration in engines of Buick Achieva, Oldsmobile Cutlass Ciera, and Pontiac Skylark models. Featuring a regular grade type construction, this balancer supports serpentine drive belt systems with six pulley grooves, accommodating multiple accessory drives. The balancer’s 34.87 mm inside diameter and 176 mm outside diameter ensure a precise fit on the crankshaft, while the 92.5 mm depth and degree markings facilitate accurate alignment during installation. The black finish provides durability against environmental factors, and the included bolt and washer simplify mounting. The package also contains a woodruff key and an instruction sheet to assist with proper setup.

Compatible Vehicles and Applications

This harmonic balancer is compatible with the following makes and models:

  • Buick Achieva and Century
  • Oldsmobile Cutlass Ciera and Cutlass Cruiser
  • Pontiac Grand Am and Skylark

Common Issues Addressed by This Harmonic Balancer

  • Excessive engine vibration causing premature wear
  • Crankshaft stress and potential damage
  • Drive belt misalignment or slippage
  • Noise from unbalanced engine components
  • Reduced engine performance due to harmonic imbalance

Installation Notes and Tips

  • Ensure the crankshaft surface is clean and free of debris before installation
  • Use the included bolt and washer to secure the balancer firmly
  • Align the degree markings carefully to maintain engine timing accuracy
  • Verify the woodruff key is properly seated to prevent slippage
  • Consult the instruction sheet for torque specifications and detailed steps

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing dependable performance for your engine’s harmonic balancing needs. The 594-087 harmonic balancer undergoes rigorous quality control to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.

BrandDorman
Part Number594-087
Bolt And Washer IncludedYes
Center Bolt IncludedNo
Color/FinishBlack
Degree MarkingsYes
Depth92.5
Drive Belt TypeSerpentine
Grade TypeRegular
Inside Diameter34.87
Mounting Hole Quantity1
Outside Diameter176
Package ContentsBalancer; Woodruff Key; Instruction Sheet
Pulley Groove Quantity6

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993BuickCentury3.3LV6N/A
1993BuickSkylark3.3LV6N/A
1993OldsmobileAchieva3.3LV6N/A
1993OldsmobileCutlass Ciera3.3LV6N/A
1993OldsmobileCutlass Cruiser3.3LV6N/A
1993PontiacGrand Am3.3LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

10210524503067DA2323P-GM204BPB1122NPC-1002

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.