Old Man Emu Front Coil Springs in Black with 590 lbf/in Spring Rate and 400 mm Free Height for 5th-Gen 4Runner (2010–2024) - Pair

Old Man Emu Front Coil Springs are precision-engineered suspension components developed to improve load control, ride comfort, and off-road stability for the 5th-Gen 4Runner platform. Designed as part of a complete integrated suspension system, these springs allow installers to tune suspension performance based on vehicle use scenarios.

Cold-formed on precision mandrels to maintain dimensional accuracy and consistent spring performance. Double scragging process pre-stresses the coil structure to reduce sagging and improve long-term durability under repeated compression cycles.

Black powder coat finish protects against corrosion, road debris abrasion, and UV exposure. Micro-alloyed steel composition improves fatigue resistance compared to standard carbon steel alternatives, allowing extended service life in harsh environments.

Constant variable-rate coil geometry provides progressive support during compression travel. This design improves on-road comfort during light driving conditions while increasing resistance to bottoming out during off-road articulation or load-carrying scenarios.

Installation is recommended as part of a matched suspension system. Pairing with corresponding Old Man Emu shock absorbers improves damping control and overall ride quality, especially when the vehicle is carrying sustained cargo weight.