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Hyperco 18SN-400 Rear Coil Spring 11" Length 5" ID 400 lb/in Rate

Manufacturer

Picture for manufacturer Hyperco

Part Number

18SN-400
14 reviews
Sale Price

$88.93

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Hyperco 18SN-400 is a high-performance rear coil spring engineered for racing and performance applications. This precision-wound spring features an 11-inch free length, 5-inch inner diameter, and a 400 lb/in spring rate, making it ideal for vehicles requiring firm rear suspension control.

Key Specifications:

  • Spring Rate: 400 pounds per inch
  • Free Length: 11 inches
  • Inner Diameter: 5 inches
  • Application: Rear suspension
  • Construction: High-tensile chrome silicon steel wire
  • Finish: Powder coated for corrosion resistance

Hyperco springs are manufactured using proprietary heat treatment processes and are cold-wound for consistent performance. Each spring is precision-ground on both ends to ensure proper seating and load distribution. These springs are designed to maintain their specified rate throughout their service life, providing predictable handling characteristics for both circle track and road racing applications.

This is my 4th autoplicity purchase. I love you guys!!

smooth and easy

great price!

Fast ordering process

good

great parts selection and FREE SHIPPING !! Thanks

Autoplicity had the best price on an ARB locker. They shipped it quickly but was not able to give me the tracking number until after I had already received it.

I was happy to find this item that was unavailable from several web stores.

was quick and easy

Searched for a number of days and Autoplicity had the best price by far!! Thanks Autoplicity!!!

5STAR

quick, easy and great price

best price for the throttle position sensor that I need

Wonderful experience with seller. Ordered on a Monday night and received on Thursday. Talking about service. Man these guys are awesome. I will be ordering more in the future with Autoplicity. Thanks again!

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