Hyperco 3.75″ I.D. x 18″ Free Length Coilover Spring, G Series, 250-400 lbs/in Rate (Choose Rate)

$177.00

Hyperco 3.75″ I.D. x 18″ Free Length Coilover Springs — G Series

Hyperco high-performance G-series coilover springs in a 3.75″ (95.2 mm) inside diameter and 18″ (457.2 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, made in the USA.
Select your spring rate from the drop-down. Every spring in this listing shares the same 3.75″ I.D. and 18″ free length; only the rate and its associated deflection, load and coil dimensions change. All dimensions are shown in both inches and millimeters.

Rate Chart

SKU Rate (lbs/in) Max Deflection Max Load (lb) Outside Dia. Solid Height Color
1818G0250 250 12.357″ (313.9 mm) 3089 5.021″ (127.5 mm) 5.643″ (143.3 mm) Silver
1818G0300 300 12.15″ (308.6 mm) 3645 5.016″ (127.4 mm) 5.85″ (148.6 mm) Silver
1818G0350 350 11.706″ (297.3 mm) 4097 5.08″ (129.0 mm) 6.294″ (159.9 mm) Silver
1818G0400 400 11.472″ (291.4 mm) 4589 5.284″ (134.2 mm) 6.528″ (165.8 mm) Silver

Specifications

  • Inside diameter: 3.75″ (95.2 mm)
  • Free length: 18″ (457.2 mm)
  • Series: G
  • Rate range: 250–400 lbs/in
  • Finish: Silver powder-coat
  • 100% rate-tested, made in the USA
  • Sold individually.