Hyperco 18SN-500 Rear Coil Spring - 5in OD, 11in Length, 500 lb/in Rate

SKU: BJRF_18SN-500
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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 Hyperco

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

Dominate the Track with Hyperco 18SN-500 Rear Coil Spring

For the most aggressive racing setups and extreme performance vehicles, the Hyperco 18SN-500 conventional rear coil spring stands alone. Boasting an incredibly stiff 500 lb/in spring rate, this component is engineered to provide maximum resistance to body roll and squat, delivering unparalleled stability and instantaneous response. It's the ultimate choice for professional racers and serious enthusiasts who demand absolute precision and control from their rear suspension in high-load, high-speed scenarios.

Engineered for Uncompromising Rigidity and Longevity

The 18SN-500 coil spring is meticulously crafted from premium, fatigue-resistant steel, ensuring it maintains its precise 500 lb/in rate even under the most punishing conditions. This extreme stiffness is critical for fine-tuning race suspensions, allowing for minute adjustments to achieve perfect balance and traction. The signature blue powder coat not only provides a striking visual accent but also serves as a robust shield against corrosion, impact, and other environmental stressors, guaranteeing long-term performance and appearance.

  • Maximum Spring Rate: 500 lb/in for ultimate rigidity.
  • Premium Steel Construction: Engineered for extreme durability and fatigue resistance.
  • Standardized Dimensions: 5 inch OD, 11 inch length for broad application.
  • Protective Finish: Blue powder coat ensures longevity and corrosion resistance.
  • Intended Use: Rear suspension, ideal for racing and heavy-duty performance.

The Pinnacle of Suspension Performance from Hyperco

Hyperco's 18SN-500 rear coil spring represents the pinnacle of their engineering prowess, designed for those who accept no compromises in suspension performance. This spring will dramatically enhance your vehicle's ability to handle G-forces, providing a direct and communicative feel that is essential for competitive driving. Trust Hyperco for the critical edge you need on the track or street, available exclusively through GGCRACING.COM.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hyperco

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

Dominate the Track with Hyperco 18SN-500 Rear Coil Spring

For the most aggressive racing setups and extreme performance vehicles, the Hyperco 18SN-500 conventional rear coil spring stands alone. Boasting an incredibly stiff 500 lb/in spring rate, this component is engineered to provide maximum resistance to body roll and squat, delivering unparalleled stability and instantaneous response. It's the ultimate choice for professional racers and serious enthusiasts who demand absolute precision and control from their rear suspension in high-load, high-speed scenarios.

Engineered for Uncompromising Rigidity and Longevity

The 18SN-500 coil spring is meticulously crafted from premium, fatigue-resistant steel, ensuring it maintains its precise 500 lb/in rate even under the most punishing conditions. This extreme stiffness is critical for fine-tuning race suspensions, allowing for minute adjustments to achieve perfect balance and traction. The signature blue powder coat not only provides a striking visual accent but also serves as a robust shield against corrosion, impact, and other environmental stressors, guaranteeing long-term performance and appearance.

  • Maximum Spring Rate: 500 lb/in for ultimate rigidity.
  • Premium Steel Construction: Engineered for extreme durability and fatigue resistance.
  • Standardized Dimensions: 5 inch OD, 11 inch length for broad application.
  • Protective Finish: Blue powder coat ensures longevity and corrosion resistance.
  • Intended Use: Rear suspension, ideal for racing and heavy-duty performance.

The Pinnacle of Suspension Performance from Hyperco

Hyperco's 18SN-500 rear coil spring represents the pinnacle of their engineering prowess, designed for those who accept no compromises in suspension performance. This spring will dramatically enhance your vehicle's ability to handle G-forces, providing a direct and communicative feel that is essential for competitive driving. Trust Hyperco for the critical edge you need on the track or street, available exclusively through GGCRACING.COM.

Product Details

Product Description

About Hyperco

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

Dominate the Track with Hyperco 18SN-500 Rear Coil Spring

For the most aggressive racing setups and extreme performance vehicles, the Hyperco 18SN-500 conventional rear coil spring stands alone. Boasting an incredibly stiff 500 lb/in spring rate, this component is engineered to provide maximum resistance to body roll and squat, delivering unparalleled stability and instantaneous response. It's the ultimate choice for professional racers and serious enthusiasts who demand absolute precision and control from their rear suspension in high-load, high-speed scenarios.

Engineered for Uncompromising Rigidity and Longevity

The 18SN-500 coil spring is meticulously crafted from premium, fatigue-resistant steel, ensuring it maintains its precise 500 lb/in rate even under the most punishing conditions. This extreme stiffness is critical for fine-tuning race suspensions, allowing for minute adjustments to achieve perfect balance and traction. The signature blue powder coat not only provides a striking visual accent but also serves as a robust shield against corrosion, impact, and other environmental stressors, guaranteeing long-term performance and appearance.

  • Maximum Spring Rate: 500 lb/in for ultimate rigidity.
  • Premium Steel Construction: Engineered for extreme durability and fatigue resistance.
  • Standardized Dimensions: 5 inch OD, 11 inch length for broad application.
  • Protective Finish: Blue powder coat ensures longevity and corrosion resistance.
  • Intended Use: Rear suspension, ideal for racing and heavy-duty performance.

The Pinnacle of Suspension Performance from Hyperco

Hyperco's 18SN-500 rear coil spring represents the pinnacle of their engineering prowess, designed for those who accept no compromises in suspension performance. This spring will dramatically enhance your vehicle's ability to handle G-forces, providing a direct and communicative feel that is essential for competitive driving. Trust Hyperco for the critical edge you need on the track or street, available exclusively through GGCRACING.COM.

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