Hunting a Corvette harmonic balancer built for spirited driving? The PowerBond by Dayco Engine Harmonic Balancer (PB1117SS) is a race performance balancer that dampens the crankshaft's torsional vibrations to help protect the crank and steady the accessory drive. It's a direct-fit replacement for these V8 applications: 2004-2007 Cadillac CTS (V8-5.7L, V8-6.0L), 1997-2013 Chevrolet Corvette (V8-5.7L, V8-6.0L, V8-6.2L), 2011-2017 Chevrolet Caprice (V8-6.0L), 2014-2017 Chevrolet SS (V8-6.2L) and 2008-2009 Pontiac G8 (V8-6.0L, V8-6.2L). See the Buyer's Guide tab for the full list.
- Steel outer ring with an overall outside diameter of 7.520 in (191 mm).
- Neutral balance, no counterweight — for internally balanced applications.
- Timing marks and three bolt holes to aid ignition timing and mounting.
- Two integrated serpentine pulleys: a 6-groove (7.363 in / 187.00 mm) and a 4-groove (7.087 in / 180.00 mm).
Installation instructions are included. A Woodruff key, mounting hardware and a crank trigger/exciter plate are not included — consult the vehicle service information for the correct fasteners and whether any originals may be reused. If a worn balancer is behind engine vibration, a wobbling pulley or belt tracking issues, this replaces it. Made in Australia.
Interchange: 594-115R
594115R · 102120 · 872047
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
Does this harmonic balancer fit a Corvette?
Yes — it is listed for the 1997-2004 (V8-5.7L), 2005-2007 (V8-6.0L) and 2008-2013 (V8-6.2L) Chevrolet Corvette. Confirm your exact year and engine in the Buyer's Guide.
Is a Woodruff key or mounting hardware included?
No. A Woodruff key and mounting hardware are not included. Consult the vehicle service information for the correct fasteners and whether any originals may be reused.
Does this balancer have a counterweight?
No. It is a neutral balance unit with no counterweight, intended for internally balanced applications.
Does it include a crank trigger or exciter plate?
No. This balancer does not include a crank trigger/exciter plate. Installation instructions are included.
What are signs my harmonic balancer may need replacing?
Engine vibration, a visibly wobbling balancer, misaligned timing marks or belt tracking issues can be signs. Diagnose the cause first; if the balancer is at fault, this replaces it.
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