Dorman 594-003 Harmonic Balancer
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$150.29
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
Product Description
This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability.
- Ideal replacement - this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement
- Durable construction - stringent specifications and careful construction help ensure longevity
- Thoroughly tested - this harmonic balancer has undergone dimensional verification, material validation and functional testing
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Detailed Applications
| Year | Make | Model | Configuration | Positions | Application Notes |
|---|---|---|---|---|---|
| 1988 | Buick | Century | V6 231 3.8L (3800cc) | ||
| 1988 | Buick | LeSabre | V6 231 3.8L (3800cc); VIN 3 | Stamped 25527381; Stamped 25527009 | |
| 1988 | Oldsmobile | Cutlass Ciera | V6 231 3.8L (3800cc) | ||
| 1988 | Oldsmobile | Cutlass Cruiser | V6 231 3.8L (3800cc) | ||
| 1988 | Oldsmobile | Delta 88 | V6 231 3.8L (3800cc); VIN 3 | Stamped 25527381 or 25527009 | |
| 1988 | Pontiac | Bonneville | V6 231 3.8L (3800cc); VIN 3 | Stamped 25527381; Stamped 25527009 | |
| 1987 | Buick | Century | V6 231 3.8L (3800cc) | ||
| 1987 | Buick | Electra | V6 231 3.8L (3800cc) | Stamped 25527381; Stamped 25527009 | |
| 1987 | Buick | LeSabre | V6 231 3.8L (3800cc) | Stamped 25527381; Stamped 25527009 | |
| 1987 | Oldsmobile | 98 | V6 231 3.8L (3800cc) | Stamped 25527381 or 25527009 | |
| 1987 | Oldsmobile | Cutlass Ciera | V6 231 3.8L (3800cc) | ||
| 1987 | Oldsmobile | Cutlass Cruiser | V6 231 3.8L (3800cc) | ||
| 1987 | Oldsmobile | Delta 88 | V6 231 3.8L (3800cc) | Stamped 25527381 or 25527009 | |
| 1987 | Pontiac | Bonneville | V6 231 3.8L (3800cc) | Stamped 25527381; Stamped 25527009 | |
| 1986 | Buick | Century | V6 231 3.8L (3800cc) | ||
| 1986 | Buick | Electra | V6 231 3.8L (3800cc) | Stamped 25527381; Stamped 25527009 | |
| 1986 | Buick | LeSabre | V6 231 3.8L (3800cc) | Stamped 25527381; Stamped 25527009 | |
| 1986 | Oldsmobile | 98 | V6 231 3.8L (3800cc) | Stamped 25527381 or 25527009 | |
| 1986 | Oldsmobile | Cutlass Ciera | V6 231 3.8L (3800cc) | ||
| 1986 | Oldsmobile | Delta 88 | V6 231 3.8L (3800cc) | Stamped 25527381 or 25527009 |
Product Specifications
| Bolt And Washer Included: | No |
|---|---|
| Center Bolt Included: | No |
| Color: | Black |
| Degree Markings: | Yes |
| Depth: | 92.5 mm |
| Drive Belt Type: | Serpentine |
| Grade Type: | Standard Replacement |
| Inside Diameter: | 34.94 mm |
| Keyway Type: | Yes |
| Mounting Hardware Included: | Yes |
| Mounting Hole Quantity: | 1 |
| Outside Diameter: | 182 mm |
| Package Contents: | 1 Harmonic Balancer; 1 Instruction Sheet |
| Package Quantity: | 1 |
| Packaging Type: | Box |
| Pulley Groove Quantity: | 5 |
| Selling Package Quantity UOM: | Piece |
OE Numbers
| DIRECT OE CROSS | |
|---|---|
| 25527381 | GENERAL MOTORS |
| 88959266 | GENERAL MOTORS |