HKS G-Cupring 90.8mm — High-Performance Engine Sealing Hardware

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SKU: HKS14999-AK037
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Sale price$41.01 Regular price$42.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About HKS

HKS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full HKS lineup with fast shipping and expert fitment support — order with confidence.

Precision Engine Sealing Solutions

The HKS G-Cupring 90.8mm is a critical component for high-performance engine builds where sealing integrity is paramount. Designed to provide a robust seal under extreme cylinder pressures, this cup ring is an essential piece of hardware for those performing engine overhauls or high-compression tuning projects.

Engineered for Performance

  • Precision 90.8mm diameter for exact fitment
  • High-durability materials to withstand extreme combustion heat
  • Ensures optimal compression and prevents pressure loss
  • Essential for high-boost or high-RPM engine configurations
  • Maintains structural seal integrity under load

When building an engine for maximum power, every detail matters. A compromised seal can lead to power loss, engine knock, and potential catastrophic failure. The HKS G-Cupring is manufactured to strict tolerances to ensure that your engine maintains its intended compression ratio, allowing for consistent power delivery and reliability. Whether you are rebuilding a classic JDM engine or preparing a race-spec block, HKS hardware provides the peace of mind that comes with professional-grade engineering. Don't settle for inferior sealing components when the performance of your entire build is on the line. Trust the quality and precision of HKS engine parts for your next project. Explore our full range of engine hardware and performance upgrades available at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About HKS

HKS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full HKS lineup with fast shipping and expert fitment support — order with confidence.

Precision Engine Sealing Solutions

The HKS G-Cupring 90.8mm is a critical component for high-performance engine builds where sealing integrity is paramount. Designed to provide a robust seal under extreme cylinder pressures, this cup ring is an essential piece of hardware for those performing engine overhauls or high-compression tuning projects.

Engineered for Performance

  • Precision 90.8mm diameter for exact fitment
  • High-durability materials to withstand extreme combustion heat
  • Ensures optimal compression and prevents pressure loss
  • Essential for high-boost or high-RPM engine configurations
  • Maintains structural seal integrity under load

When building an engine for maximum power, every detail matters. A compromised seal can lead to power loss, engine knock, and potential catastrophic failure. The HKS G-Cupring is manufactured to strict tolerances to ensure that your engine maintains its intended compression ratio, allowing for consistent power delivery and reliability. Whether you are rebuilding a classic JDM engine or preparing a race-spec block, HKS hardware provides the peace of mind that comes with professional-grade engineering. Don't settle for inferior sealing components when the performance of your entire build is on the line. Trust the quality and precision of HKS engine parts for your next project. Explore our full range of engine hardware and performance upgrades available at GGCRACING.

Product Details

Product Description

About HKS

HKS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full HKS lineup with fast shipping and expert fitment support — order with confidence.

Precision Engine Sealing Solutions

The HKS G-Cupring 90.8mm is a critical component for high-performance engine builds where sealing integrity is paramount. Designed to provide a robust seal under extreme cylinder pressures, this cup ring is an essential piece of hardware for those performing engine overhauls or high-compression tuning projects.

Engineered for Performance

  • Precision 90.8mm diameter for exact fitment
  • High-durability materials to withstand extreme combustion heat
  • Ensures optimal compression and prevents pressure loss
  • Essential for high-boost or high-RPM engine configurations
  • Maintains structural seal integrity under load

When building an engine for maximum power, every detail matters. A compromised seal can lead to power loss, engine knock, and potential catastrophic failure. The HKS G-Cupring is manufactured to strict tolerances to ensure that your engine maintains its intended compression ratio, allowing for consistent power delivery and reliability. Whether you are rebuilding a classic JDM engine or preparing a race-spec block, HKS hardware provides the peace of mind that comes with professional-grade engineering. Don't settle for inferior sealing components when the performance of your entire build is on the line. Trust the quality and precision of HKS engine parts for your next project. Explore our full range of engine hardware and performance upgrades available at GGCRACING.

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