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Vehicle Info NeededACDELCOPART NUMBER: 065-12674582
Harmonic Balancer 2008-2013 Chevy/GM Small Block Gen III/IV
$16289
Ships on 09/14/2026
Lowest Price Guarantee- Harmonic Balancer
- 2008-2013 Chevy/GM Small Block Gen III/IV (LS-based engines)
- When replacing a harmonic balancer, look to ACDelco for new and affordable OE replacements. This eliminates the need to inspect, clean, or worry about worn harmonic balancers.
Part TypeHarmonic Balancer
Product LineACDelco Harmonic Balancers
BrandACDELCO
Package Height4.5
Package Width9.6
Package Length9.6
Weight10.24 PG
Part CategoryReplacement Parts
Programming RequiredNo
Bolt And Washer IncludedNo
Mounting Hole Quantity1
Center Bore Diameter (Mm)37.61mm
Keyway TypeNo
Center Bolt Thread Diameter (In)0.63
Center Bore Diameter (In)1.481in
Depth1.38
Inside Diameter38
Features & Benefits - Bullet 2GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
Meets Or Exceeds Original Equipment Manufacture SpecificationsYes
Features & Benefits - Bullet 3GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Features & Benefits - Bullet 4GM regularly updates production and service part designs to integrate new materials and technologies
Pulley 1 Groove Quantity6
Product DescriptionFor LS3 engines; Works with Chevrolet Performance Serpentine Accessory Drive System P/N 19421420 or P/N 19421444 ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Mount Hole Quantity0
Features &#38; Benefits - Bullet 1Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Center Bolt Thread TypeCoarse
Width (In)9.25
Center Bolt Thread Diameter (Mm)16
Center Bolt Length5.16
Height (In)4.25
Drive Belt TypeSerpentine
Pulley 2 Groove Quantity4
Length (In)9.75
Part FitmentDirect Fit
Outside Diameter7.64
Pulley Groove Quantity10
Weight (Lb)9.63
Grade TypeOE
Vendor Part Number12674582
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
