ATI 918859 Super Damper Harmonic Balancer for 2009-15 Cadillac CTS-V 6.2L LSA

Vehicle Fitment

• 2009-2015 Cadillac CTS-V (6.2L LSA V8, internal balance)
• Also fits 2012-2015 Chevy Camaro ZL1 6.2L LSA (shared LSA engine platform)

Features

• ATI Super Damper harmonic balancer designed for LS-based LSA V8 engines
• 6-groove serpentine pulley machined into outer shell for OEM accessory drive compatibility
• Eliminates harmful torsional crankshaft vibrations at all RPM levels
• Laser-etched 360° degree timing marks for precision tuning reference
• Aluminum outer shell with integrated steel inertia weight for strength
• SFI 18.1 safety certified for high-performance and competition use
• Black zinc chromate finish for corrosion resistance
• Tunable and rebuildable design - allows optional pulley configurations

Specifications

• Part Number: ATI 918859
• Engine Compatibility: 6.2L LSA V8 (internal balance)
• Application Years: 2009-2015 Cadillac CTS-V; 2012-2015 Camaro ZL1
• Pulley Grooves: 6-groove serpentine (OEM accessory drive)
• Outside Diameter: 7.480 in (190 mm)
• Engine Balance: Internal crank balance
• Degree Markings: 360°, laser-etched
• SFI Rating: 18.1 certified
• Material: Aluminum outer shell with steel hub/inertia weight
• Finish: Black zinc chromate
• Notes: No supercharger pulley supplied - optional pulleys available separately

Included Components

• 1x ATI 918859 Super Damper harmonic balancer
• Laser-etched timing marks integrated on damper

Product Description

The ATI 918859 Super Damper Harmonic Balancer is a high-performance, serpentine-style crankshaft damper designed specifically for the **2009-2015 Cadillac CTS-V equipped with the 6.2L LSA V8 engine**, and also compatible with the same engine on **2012-2015 Chevy Camaro ZL1** applications. This damper replaces the OEM balancer with a rugged aluminum and steel construction designed to more effectively reduce torsional crankshaft vibration, improving engine smoothness and protecting internal components under high load and high RPM conditions.

Featuring a **6-groove serpentine pulley integrated into the damper's outer shell**, it retains compatibility with the factory accessory drive system while providing enhanced performance benefits. Laser-etched 360° timing marks give accurate reference points for engine tuning and ignition timing checks. Although the base unit does not include supercharger pulleys, a range of optional overdrive pulleys is available to tailor performance for forced induction applications. With **SFI 18.1 certification**, this damper meets strict safety standards for both street and competitive use, making it ideal for performance enthusiasts and racers running high-output LSA-powered machines.