Premium NISSAN VQ-Series Crankshaft Pulley – CARPARTNER High-Performance OEM 12303-31U10

Refined Drivetrain Stability and Dual-Groove Precision for VQ20/VQ30 V6 Engines

At CARPARTNER, we specialize in components that maintain the world-class refinement of V6 engine platforms. This 12303-31U10 series crankshaft pulley is engineered specifically for the Nissan Maxima and Infiniti I30 equipped with VQ20 and VQ30 engines. Featuring a precision-machined 4+6PK dual-groove layout, our pulley effectively isolates the complex torsional harmonics of the VQ-series, ensuring smooth power delivery and protecting the engine’s rotating assembly from mechanical stress.

Product Specifications

• Brand: CARPARTNER
• OEM Part Numbers: 12303-31U10 / 12303-31U00 / 12303-31U1A
• Vehicle Compatibility: Nissan Maxima (1995-2001) & Infiniti I30 (1996-2001)
• Engine Application: VQ20DE / VQ30DE (A32 Series)
• Dimensions (mm): Ext.￠163 / Hole.￠32 / Height: 59

Exceptional Production Standards and Global Supply Reliability

With over a decade of specialized industrial manufacturing, CARPARTNER stands as an elite factory leader in the automotive damping sector. We leverage deep technical accumulation to provide international distributors with engine components that meet the highest standards of structural stability for the Nissan/Infiniti V6 aftermarket. Our factory supports global wholesale markets with consistent quality and the professional technical literacy required for precision engine maintenance.

Our Manufacturing Advantages

1. V6 Dynamics Expertise: Our facilities focus on the specific harmonic damping requirements of high-performance V6 engines to ensure optimized NVH (Noise, Vibration, and Harshness) reduction.
2. Wholesale Strategic Support: We offer modular OEM/ODM services, including customized branding and reinforced international packaging designed for safe, bulk global transit.

High-Yield Ductile Iron Architecture and Advanced Cohesive Bonding

The long-term durability of a CARPARTNER harmonic balancer is derived from the precision integration of its heavy-duty metallic core and resilient shock-absorbing elements.

• Premium Ductile Iron Core: Cast from high-strength ductile iron to ensure maximum durability and anti-fatigue performance under the mechanical stress of V6 operation.
• Engineered Damping Polymers: Integrated rubber rings are selected for their thermal stability and resistance to aging in high-temperature engine bay environments.
• Fail-Safe Integrated Vulcanization: A specialized thermal bonding process creates an inseparable connection, preventing structural separation even at peak RPMs.
• Computerized Balance Optimization: Every individual unit undergoes 100% electronic dynamic balance verification to ensure smooth, noise-free operation and drive system protection.

Inquiry Data Required for Professional Quoting

Please provide the following details for a precise quote:

1. Vehicle Information: Vehicle Nameplate / Engine Model / Brand & Year
2. Product Details: OEM Part Number (12303-31U10) / Purchase Quantity
3. Logistics Profile:
   • Domestic: Warehouse or agent contact in China.
   • International: Destination Country, Full Address, and Zip Code.
4. Special Requirements: Packaging (Standard Export or Customized).

Our Service and Contact Network

🔵 E-mail: info@CPTautoparts.com ; sales@CPTautoparts.com