Specifications:

  • Serpentine belt pulley
  • 7 inch diameter
  • 3.75 inch width
  • Replaces dealer part number: 25527381
  • Direct bolt on replacement
  • Built to strict quality control standards
  • Fits 3.8L 231 cubic inch 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. Please keep your invoice for proof of this warranty.

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Vehicle Fit

  • 1986-1988 Buick Century Harmonic Balancer V6 3.8L 231ci
  • 1986-1988 Buick Electra Harmonic Balancer V6 3.8L 231ci
  • 1986-1988 Buick LeSabre Harmonic Balancer V6 3.8L 231ci
  • 1986-1988 Olds 98 Harmonic Balancer
  • 1986-1988 Olds 98-Regency Harmonic Balancer
  • 1986-1988 Olds Cutlass Ciera Harmonic Balancer V6 3.8L 231ci
  • 1986-1988 Olds Delta 88 Harmonic Balancer V6 3.8L 231ci
  • 1986-1988 Olds Delta 88-Royale Harmonic Balancer V6 3.8L 231ci
  • 1987-1988 Pontiac Bonneville Harmonic Balancer

This part replaces:

  • Hollander 309-406A
  • OE # 25527009 & 25527381
  • Dorman 594-003
Only 4 left in stock
Part #: 1AEHB00002