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    ARP Auto Racing ARP Harmonic Damper Bolt Kit

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    Warranty Information
    • Product Details

      Part No. 156-2501

      Warranty Details (1 YR REPLACEMENT IF DEFECTIVE)

      As the crankshaft flexes and twists, the balancer absorbs incredible amounts of kinetic energy. To ensure that the balancer is locked in place, ARP has developed these ultra-strong 200,000 psi bolts that let you exert maximum clamping force. Special features include 1/4' thick, wide area washer and an extra tall 12-point head that accepts a deep socket and eliminates the worry of stripping the head.

      Product Features:

      • 18mm 12-Point Socket Size(s)
      • 8740 Chromoly
      • Black Oxide
      • Ford 4.6L/5.4L
      • M12 x 1.5 RH Thread Size
      • 1.8" Underhead Length
      • Sold Individually
      • 200,000 PSI
      • Will NOT Fit the newer 5.4L Cobra Jet/Shelby GT500 Crankshafts

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