Key Cone Rear Spring Upper Isolators (Metal-tech 4x4 exclusive) sold in pairs

Spec sheet

Collected from 1 supplier page - confirm fit with the supplier before ordering.

Key Cones w/ Free shipping! Not just another low grade rubber imported copy of the Toyota cones. Metal-tech 4x4 spent years developing a true enhanced performance to the stock cones. 100% Made in USA. Dual Rate high-performance polyurethane upper spring cones for rear mount applications. Toyota calls these “Secondary Springs" (commonly mistakenly called isolators by some). Key Cones were developed by Metal-tech 4x4 and Energy Suspension over a 3yr collaboration. This dual rate secondary spring is featuring Energy Suspensions proprietary polyurethane in two different durometers. The top accordion tip is soft when engaged and the lower body is firmer as your suspension nears the end of travel. Far superior to the single rate basic rubber found in the OEM application. Key Cones unlock hidden performance on your truck. 100% designed, engineered, tested, and made in the USA. This original Metal-tech 4x4 product is protected under US Patent No. 11,691,473 Sold as one pair. (One truck uses one pair) Fits: 2003-Current 4Runner 2003-09 Lexus GX470 2007-14 FJ Cruiser 2010-Current Lexus GX460 Upper Spring Insulators (SPRING SUB-ASSY,). Used with our Metal-tech 4x4 GX Conversion kits to delete the Air Suspension bags and replace with traditional Coil Springs.

Suppliers (1)

• Metal-tech 4x4

  Key Cone Rear Spring Upper Isolators (Metal-tech 4x4 exclusive) sold in pairs · Orderable · stock unverified

  Checked Nov 5, 2026
  $239.95
  View at supplier

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