Designed and Engineered with the Overlander in mind, AEV’s all-new 4.5″ High Capacity Coil Springs are a direct fit upgrade for customers with an AEV 4.5″ DualSport SC/RS Suspension System. These frequency-tuned, progressive rate coil springs provide the increased load carrying capacity necessary for heavily loaded vehicles, while still offering exceptional ride quality, handling and off-road articulation.

High capacity coil springs for JK Wrangler

These coil springs are only available as a matching set of front and rear springs in order to preserve optimal vehicle handling dynamics. The relative rate/frequency of the front coil springs vs. the rear springs is a crucial part of safe vehicle handling. Because of this, AEV increases the rate/frequency of the front springs in order to maintain an appropriate relationship with the rear springs, across the entire range of rear-biased loading.

4.5″ JK High Capacity Coil Springs >


JK Wrangler with roof rack tent using AEV high capacity coil springs Heavily loaded JK wrangler overcoming an obstacle with AEV high capacity coil springs Two Jeep Wrangler JK's with roof rack tents camping out in the Moab desert. Jeep Wrangler JK driving down a dirt road near Moab Utah Head on shot of AEV JK 350 with high capacity coil springs driving down a dirt road AEV Jeep Wrangler JK overcoming an obstacle on the trail. Jeep Wrangler JK driving down a dirt road with mountains in the background.