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GM GENUINE 12578069 Specifications
Bolt And Washer IncludedNo
Center Bolt Thread Diameter (IN)0.63
Center Bolt Thread Diameter (MM)16
Center Bolt Thread TypeCoarse
Center Bore Diameter (IN)1.26in
Center Bore Diameter (MM)31.95mm
Depth (IN)1.34
Depth (MM)34
Drive Belt TypeSerpentine
Inside Diameter (IN)1.77
Inside Diameter (MM)45
Keyway TypeNo
Mounting Hole Quantity1
Outside Diameter (IN)7.13
Outside Diameter (MM)181
Pulley Groove Quantity6
ACDelco GM Original Equipment Engine Harmonic Balancers help reduce torsional vibrations by connecting to the crankshaft of your vehicle's engine. They serve as pulleys for the engine accessory drive belts, and are GM-recommended replacements for your vehicle's original components. These original equipment harmonic balancers have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Features & Benefits:
  • Connects to the crankshaft of your vehicle's engine to help reduce vibration
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Offering the quality, reliability, and durability of GM OE
  • Manufactured to GM OE specification for fit, form, and function

Warranty Information:
24 Month / Unlimited Mile Warranty