Hyperco 1.875″ I.D. x 12″ Free Length Coilover Spring, D Series, 150-250 lbs/in Rate (Choose Rate)
$84.05
Hyperco 1.875″ I.D. x 12″ Free Length Coilover Springs — D Series

Hyperco high-performance D-series coilover springs in a 1.875″ (47.6 mm) inside diameter and 12″ (304.8 mm) free length. Precision cold-wound from high-tensile chrome-silicon wire, heat-treated, preset and 100% rate-tested, so the printed rate is the delivered rate. Lighter weight and more usable deflection than comparable springs, and made in the USA.
Select your spring rate from the drop-down. Every spring in this listing shares the same 1.875″ I.D. and 12″ free length; only the rate and its associated deflection, load and coil dimensions change.
Rate Chart
| SKU | Rate (lbs/in) | Max Deflection (in) | Max Load (lb) | Outside Dia. (in) | Solid Height (in) |
|---|---|---|---|---|---|
| 1812D0150 | 150 | 7.873″ | 1180 | 2.867″ | 4.127″ |
| 1812D0175 | 175 | 7.748″ | 1355 | 2.801″ | 4.252″ |
| 1812D0200 | 200 | 7.15″ | 1430 | 2.675″ | 4.85″ |
| 1812D0225 | 225 | 6.866″ | 1545 | 2.705″ | 5.134″ |
| 1812D0250 | 250 | 6.815″ | 1704 | 2.725″ | 5.185″ |
Specifications
- Inside diameter: 1.875″ (47.6 mm)
- Free length: 12″ (304.8 mm)
- Series: D
- Rate range: 150–250 lbs/in
- Finish: Blue powder-coat
- 100% rate-tested, made in the USA
- Sold individually.







