We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rubber rear air spring with metal end caps for Ram 1500

Unity

Unity 15-518100 Rear Air Spring for 2013-2017 Ram 1500

SKU CH-JHR8-7A0VZ

Rear air spring restores factory air suspension on 2013-2017 Ram 1500 models

  • Designed for 2013-2017 Ram 1500 fitment
  • Restores air suspension for safe comfortable ride
  • Unity 50-year aftermarket manufacturing experience
  • Elite Suspension Line replacement air spring
  • Trouble-free installation with long-lasting reliability

Direct-Fit Air Spring for 2013-2017 Ram 1500

This rear air spring is engineered as a direct replacement for the factory air suspension on 2013-2017 Ram 1500 models. It restores the original load-levelling function and ride height. The part is manufactured by Unity, a brand with over 50 years of aftermarket suspension experience. It is designed to ensure a trouble-free installation.

Sustained Load and Ride Quality

Under continuous load, the air spring maintains consistent pressure to support the vehicle's rear end and preserve ride comfort. The design focuses on long-lasting reliability through repeated compression and extension cycles. It withstands the test of time in daily driving and hauling scenarios. The Elite Suspension Line construction aims to prevent premature fatigue.

Air Suspension System Integration

This component functions within the vehicle's existing air suspension architecture, relying on the factory compressor and control module. It replaces a single rear spring; the system's overall capacity remains defined by the original equipment specifications. The spring restores safe and comfortable air ride operation. No modifications to the vehicle's standard plumbing or electronics are required.

Highlights

  • Designed for 2013-2017 Ram 1500 fitment
  • Restores air suspension for safe comfortable ride
  • Unity 50-year aftermarket manufacturing experience
  • Elite Suspension Line replacement air spring
  • Trouble-free installation with long-lasting reliability

Specifications

BrandUNITY

Questions about this item

Will the 15-518100 rear air spring run quietly and stay cool during daily driving on my 2013-2017 Ram 1500?

As a passive air spring, it has no moving electrical parts, so it produces no noise of its own and generates no heat beyond normal suspension flex.

What other components must already be on the truck for the 15-518100 to install and function?

The air spring replaces the factory rear air spring on 2013-2017 Ram 1500 models equipped with the original air suspension system; the compressor, lines and control module must be present and working.

Can the 15-518100 rear air spring work with the original shocks and electronic level control on my 2013-2017 Ram 1500?

Yes, it is a direct replacement for the OE rear air spring, so it mates to the factory shock mounts and feeds the existing height sensors without modification.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.