Harmonic Balancer Bolt - Pontiac - 12-Point

Harmonic Balancer Bolt w/ Thick Washer, Pontiac 350-455, 12-Point, 5/8" Wrenching, 180,000 PSI, 5/8"-18 x 1.580" Under Head Length


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Torque Harmonic Balancer Bolt to 180 ft-lbs.


Earl's harmonic balancer bolts are made from high quality chrome moly steel with 180,000 PSI rating. The extra-tall 12-point bolt head won't strip or allow the socket to slip-off when turning over the engine. Includes extra thick large diameter washer. Bolt and washer are black oxide coated.


  • 180,000 PSI Rating
  • Made from High Strength 4135 Chrome Moly
  • Black Oxide Coating
  • 5/8" Wrench Size
  • Extra-Tall 12-Point Bolt Head - Won't Strip or Allow Socket to Slip Off
  • Large Diameter Extra Thick Washer
  • Reusable - Not Torque-To-Yield


EnginePontiac V8
FinishBlack Oxide
Head Style12-Point
Material4135 Chrome Moly
Product TypeHarmonic Balancer Bolts
PSI Rating180,000
Thread Size5/8-18
Under Head Length1.580"
Washer IncludedYes
Washer Size.270" Thick x 1.960" Diameter
Wrench Size5/8"
Part NumberDBT-006ERL

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Torque Harmonic Balancer Bolt to 180 ft-lbs.
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