-36%
-36%
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#UP228486
HYPERCO 9.5" X 5.5" SPRING
- Blemished
- Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
- Features one end open and one end closed and ground
$59.24
/each
In Stock
$93.00
Save $33.76
Order soon, only 1 left in stock!
Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information.
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Product Summary
Front Position, 400 lbs. Spring Rate, 9.5" Free Height
- Blemished
- Item has cosmetic imperfections such as scuffs, dents, bends, or similar marks. The item functions as originally intended but is discounted due to these blemishes. Please review the photos and description for more information
- Features one end open and one end closed and ground
- They have a free height of 9.5" and an O.D. of 5.5"
- Available in several lengths to custom fit your application
- The Dynamic Travel Response design allows all springs to exceed the performance requirements for travel and rate linearity
- Hyperco’s Dynamic Travel Response spring design, allow for optimization of the total vehicle performance on many Circle Track vehicles and applications
Key Specs
| Garage Sale Type | Blemished |
| Position | Front |
| Spring Rate | 400 lbs. |
| Free Height | 9.5" |
| Outside Diameter | 5.5" |
Need To Know
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855.313.9176Ineligible for Return
Contains items that cannot be returned
Hyperco 18Z0400 Details
Hyperco 18Z0400 Details

This is Garage Sale priced due to cosmetic imperfections. The item functions as originally intended but is discounted due to the blemishes. The photos above will show the imperfections.
NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS
Conventional Springs are high-performance, aftermarket suspension springs primarily used in motorsports and motor racing. The OD (outer diameter) size and free length, along with Hyperco’s Dynamic Travel Response spring design, allow for optimization of the total vehicle performance on many Circle Track vehicles and applications.
Unlike Coil-Over Springs that are available in a multitude of free lengths, Conventional Springs are limited in their free length offerings, often as a result of the sanctioning bodies and rules. The Engineers at Hyperco decided to analyze the dynamic characteristics essential to Conventional Spring performance. That data resulted in the development of the Dynamic Travel Response spring design concept.
Working within the limitations and rules, the Dynamic Travel Response design allows all springs to exceed the performance requirements for travel and rate linearity, and is still designed with significantly less physical weight.
- 5-1/2" OD Front Conventional Springs
- 9-1/2" Free Height
- One end open, one end closed and ground
- Available Spring Rates:
- 300
- 350
- 400
- 450
- 475
- 500
- 525
- 550
- 575
- 600
- 625
- 650
- 700
- 750
- 800
- 850
- 900
- 950
- 1000
- 1050
- 1370
- 1490
Hyperco 18Z0400 Specifications
Hyperco 18Z0400 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 18Z0400 |
| Brand | Hyperco |
| Garage Sale Type | Blemished |
| Position | Front |
| Spring Rate | 400 lbs. |
| Free Height | 9.5" |
| Outside Diameter | 5.5" |
| Material Type | Steel |
| Finish | Powder Coated |
| Color | Blue |
| Spring Rate Range | 400 - 499 lbs. |
| GENERAL | |
| Sold in Quantity | Each |
| Progressive Rate Spring | No |
| Coil Spring End (A) | Square |
| Coil Spring End (B) | Tangential |
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