This harmonic balancer / pulley is a new, aftermarket replacement part that has the following specifications:

  • Serpentine belt pulley
  • 7 1/8 inch diameter
  • 3 3/4 inch width
  • Replaces dealer part number: 25535485
  • Direct bolt on replacement
  • Built to strict quality control standards
  • Fits 3.8L 231 cubic inch normal aspiration engines only


An exact replacement.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Vehicle Fit

Year Make Model Description
1988Buick Electra Buick Electra Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Buick Electra Buick Electra Harmonic Balancer V6 3.8L Dorman 594-001
1988Buick LeSabre Buick LeSabre Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Buick LeSabre Buick LeSabre Harmonic Balancer V6 3.8L Dorman 594-001
1988Buick Reatta Buick Reatta Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Buick Reatta Buick Reatta Harmonic Balancer V6 3.8L Dorman 594-001
1988Buick Riviera Buick Riviera Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Buick Riviera Buick Riviera Harmonic Balancer V6 3.8L Dorman 594-001
1988Oldsmobile 98 Olds 98 Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Oldsmobile 98 Olds 98 Harmonic Balancer V6 3.8L Dorman 594-001
1988Oldsmobile 98-Regency Olds 98-Regency Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Oldsmobile 98-Regency Olds 98-Regency Harmonic Balancer V6 3.8L Dorman 594-001
1988Oldsmobile Delta 88 Olds Delta 88 Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Oldsmobile Delta 88 Olds Delta 88 Harmonic Balancer V6 3.8L Dorman 594-001
1988Oldsmobile Delta 88-Royale Olds Delta 88-Royale Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Oldsmobile Delta 88-Royale Olds Delta 88-Royale Harmonic Balancer V6 3.8L Dorman 594-001
1988Oldsmobile Toronado Olds Toronado Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Oldsmobile Toronado Olds Toronado Harmonic Balancer V6 3.8L Dorman 594-001
1988Oldsmobile Trofeo Olds Trofeo Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Oldsmobile Trofeo Olds Trofeo Harmonic Balancer V6 3.8L Dorman 594-001
1988Pontiac Bonneville Pontiac Bonneville Harmonic Balancer V6 3.8L (8th Vin Digit C) Dorman 594-001
1989-1990Pontiac Bonneville Pontiac Bonneville Harmonic Balancer V6 3.8L Dorman 594-001

This part replaces:

  • Hollander 309-430
  • OE # 25535485
  • Dorman 594-001
Only 1 left in stock
Part #: 1AEHB00003


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Dorman
Brand #: 594-001