Hyperco Conventional Coil Spring 5in ID 9.9in Tall 400 lb/in — Front Suspension Performance

SKU: BJRF_18Y0400-9.9

About Hyperco Hyperco engineers high-quality automotive parts and accessories trusted ...Read more

Price:
Sale price$98.00
980 ENTRIES10X
Add To Cart
Checking fitment…
×

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.

Hyperco 5in ID 9.9in Conventional Coil Spring

The Hyperco 18Y0400-9.9 coil spring is the ideal choice for racers needing a stiffer 400 lb/in front-end setup. With a 9.9-inch free length and 5-inch internal diameter, this spring is engineered to handle the high loads experienced during aggressive cornering. The silver powder coat finish not only looks great but provides a protective barrier against the elements, ensuring your suspension components remain in top condition throughout the season.

Performance Benefits

  • Increased Stiffness: 400 lb/in rate reduces front-end dive during heavy braking.
  • Linear Rate: Provides predictable handling characteristics.
  • Durable Steel: High-tensile material prevents premature spring sag.
  • Standardized Fit: 5-inch ID fits most popular racing coil-over kits.

When every millisecond counts, your suspension setup must be flawless. The Hyperco 400 lb/in spring is designed to provide the support necessary to keep your front tires planted, maximizing grip and improving turn-in response. Its compact 9.9-inch height allows for more flexibility in your ride height adjustments, giving you the ability to dial in your chassis for specific track conditions. Hyperco is a name synonymous with racing excellence, and this spring is no exception. By choosing this high-performance part, you are ensuring that your vehicle benefits from the best in suspension technology. Experience the difference that a quality spring makes in your lap times. Find all your racing suspension needs at GGCRACING.

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.

Hyperco 5in ID 9.9in Conventional Coil Spring

The Hyperco 18Y0400-9.9 coil spring is the ideal choice for racers needing a stiffer 400 lb/in front-end setup. With a 9.9-inch free length and 5-inch internal diameter, this spring is engineered to handle the high loads experienced during aggressive cornering. The silver powder coat finish not only looks great but provides a protective barrier against the elements, ensuring your suspension components remain in top condition throughout the season.

Performance Benefits

  • Increased Stiffness: 400 lb/in rate reduces front-end dive during heavy braking.
  • Linear Rate: Provides predictable handling characteristics.
  • Durable Steel: High-tensile material prevents premature spring sag.
  • Standardized Fit: 5-inch ID fits most popular racing coil-over kits.

When every millisecond counts, your suspension setup must be flawless. The Hyperco 400 lb/in spring is designed to provide the support necessary to keep your front tires planted, maximizing grip and improving turn-in response. Its compact 9.9-inch height allows for more flexibility in your ride height adjustments, giving you the ability to dial in your chassis for specific track conditions. Hyperco is a name synonymous with racing excellence, and this spring is no exception. By choosing this high-performance part, you are ensuring that your vehicle benefits from the best in suspension technology. Experience the difference that a quality spring makes in your lap times. Find all your racing suspension needs at GGCRACING.

Customer reviews

No reviews yet. Bought this part? Tell other drivers how it fits and performs.

Recently viewed