ATI 918583 Super Damper Harmonic Balancer for 2023-25 Nissan Z VR30DDTT

Vehicle Fitment

• 2023-2025 Nissan Z (RZ34) 3.0L V6 VR30DDTT, Twin-Turbo
• Also fits Infiniti Q50/Q60 with VR30DDTT 3.0L V6 engines (direct OEM replacement)

Features

• ATI Super Damper harmonic balancer engineered for VR30DDTT engines
• Direct OEM-replacement for Nissan Part #12303-6GP0A
• OEM diameter design retains factory accessory belt locations
• 6-groove serpentine pulley for proper belt routing
• Aluminum outer shell with steel hub for durability
• Laser-etched 360° timing marks for precise tuning
• Balances torsional crankshaft vibration across all RPM ranges
• SFI 18.1 certified for street and competition use

Specifications

• Part Number: ATI 918583
• Engine Compatibility: Nissan/Infiniti VR30DDTT 3.0L V6 twin-turbo
• Diameter: ~5.763" OEM diameter design
• Pulley Grooves: 6-groove serpentine
• Shell Material: Aluminum
• Hub Material: Steel with .199" keyway
• Inertia Weight: 3-ring configuration
• SFI Safety Rating: 18.1 competition certified

Included Components

• 1x ATI 918583 Super Damper harmonic balancer
• Laser-etched timing marks integrated
• Installation instructions

Product Description

The ATI 918583 Super Damper Harmonic Balancer is a high-performance crankshaft damper specifically engineered for the Nissan Z (RZ34) equipped with the 3.0L twin-turbo VR30DDTT V6 engine, covering model years **2023 through 2025**. This damper is a direct OEM replacement for Nissan Part #12303-6GP0A and maintains the factory serpentine accessory routing with its 6-groove design, ensuring proper belt alignment and accessory drive integrity.

Constructed with an aluminum outer shell and a rugged steel hub, the ATI Super Damper delivers enhanced control of torsional crankshaft vibrations across the entire RPM range - beyond what the stock damper offers. The laser-etched 360° timing marks provide accurate reference points for engine tuning and timing checks. With SFI 18.1 safety certification, this damper is suitable for both street performance and competitive use, providing reliability and improved engine longevity for Z enthusiasts and racers alike.