Rubicon Express Jounce Bumper

Rubicon Express Jounce Bumpers: Trail-Tested Suspension Protection

Rubicon Express has been a cornerstone of the Jeep suspension aftermarket since Rustin Smith founded the company in 1996 with one ambitious vision: to create the ultimate Jeep suspension systems capable of conquering the most challenging trails. Located moments from the Rubicon Trail, Rubicon Express products are real-world tested to ensure the highest quality, function, comfort, and safety. That heritage of trail-first engineering carries directly into their line of jounce bumpers — small but critical components that protect your entire suspension system when it counts most.

Why Jounce Bumpers Matter on a Lifted Jeep

When you add a lift kit and run larger tires, the factory bump stops are no longer up to the job. At full suspension compression, without an adequate jounce bumper, your axle housing can make violent metal-to-metal contact with your frame or coil bucket — a recipe for cracked welds, bent control arms, and a jarring ride. Rubicon Express bump stops are designed to prevent overcompression and ensure that larger tires do not compromise your ride quality. Their extended designs add critical travel limitation that stock bump stops simply cannot provide once a suspension lift is in the picture.

The Rubicon Express Jounce Bumper Lineup

Rubicon Express offers purpose-built jounce bumper solutions across several popular Jeep platforms. The RE1380 is one of their most versatile bump stop options — this 2-inch bump stop provides enhanced limitation for larger tires, ensuring a smoother and more controlled ride over rugged terrains, fitting applications including the Jeep Cherokee, Grand Cherokee, Wrangler TJ, and Wrangler JK. For Wrangler TJ owners specifically, the RE1385 rear upper jounce bumper fits seamlessly inside the rear coil to provide that same essential extra limitation in a rear-specific package. Rounding out the lineup, the RE1387 rear bump pad is engineered specifically for the Jeep Wrangler JK, spanning the 2007–2018 model years — a go-to solution for JK owners running lift kits who need proper rear compression control.

Beyond the standard rubber bump stop designs, Rubicon Express has also developed hydraulic bump stop solutions. Hydraulic bump stops provide a smooth transition at full compression compared to a harsh factory rubber bump stop, and Rubicon Express engineered an easy-to-install 2.0-inch hydraulic bump stop kit to eliminate the need for custom fabrication. These improve performance at high speed and are designed to maximize bottom-out resistance while creating smooth engagement and controlled axle housing return.

Engineered to Work Within a Complete Suspension System

Extended bump stops provide 2"–3" of extra limitation for larger tires — a spec that directly complements the lift heights Rubicon Express suspension kits are built around. This systems-level thinking is what separates Rubicon Express bump stops from generic replacements: they are designed by the same engineers who build the lift kits, ensuring every component works in harmony. For over 25 years, Rubicon Express has led the charge in off-road innovation, earning their reputation through cutting-edge suspension designs and uncompromising durability.

Whether you are building a rock-crawling rig or dialing in a daily-driven Wrangler for weekend trail use, Rubicon Express jounce bumpers offer a straightforward upgrade that protects your suspension investment every time you push the axle to its limits. Browse the full selection of jounce bumpers or explore everything Rubicon Express has to offer for your Jeep.