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

Unity

Unity 30-599000 Rear Conversion Kit 2003-2009 Hummer H2

SKU CH-5R30-M35K8

Rear conversion kit replaces air suspension with passive steel springs for 2003-2009 Hummer H2

  • Converts air suspension to reliable steel springs
  • Fits 2003-2009 Hummer H2 rear suspension
  • Over 50 years Unity manufacturing experience
  • Engineered for trouble-free installation and durability
  • Part number 30-599000 for exact fitment

Unity Rear Conversion Kit for 2003-2009 Hummer H2

This Unity rear conversion kit replaces the factory air-ride system on 2003-2009 Hummer H2 models with a passive steel-spring setup. It is built for owners who want to eliminate air-suspension leaks and compressor failures. The kit is designed for a direct retrofit using the original mounting points.

Check your rear suspension type before ordering

Confirm that the vehicle currently uses the factory air-ride suspension and not a previously converted coil-spring system. Verify the model year falls within the 2003 to 2009 range, as fitment is specific to those years. Inspect the rear mounting locations for corrosion or damage that could affect the retrofit installation.

Kit converts air ride to steel springs

The bundled components remove the air bags, lines and compressor, replacing them with steel springs that do not leak or require a compressor. This change eliminates the common failure points of the original air suspension. The result is a simplified rear suspension that maintains ride height without the complexity of the factory air system.

Highlights

  • Converts air suspension to reliable steel springs
  • Fits 2003-2009 Hummer H2 rear suspension
  • Over 50 years Unity manufacturing experience
  • Engineered for trouble-free installation and durability
  • Part number 30-599000 for exact fitment

Specifications

BrandUNITY

Questions about this item

What does the Unity 30-599000 kit include for the 2003-2009 Hummer H2 rear conversion?

The kit provides the components needed to replace the factory air suspension with steel coil springs, eliminating the air compressor and bags for a passive setup.

Is the Unity 30-599000 the only rear conversion kit for my 2003-2009 Hummer H2?

This part number 30-599000 is the specific Unity Elite Suspension Line kit engineered for 2003-2009 Hummer H2 rear air-to-coil conversion.

How does the conversion affect the 2003-2009 Hummer H2 ride height and load capacity?

The retrofit maintains the original ride height and supports the vehicle's factory load rating using durable steel springs instead of air bags.

Also in this aisle

People compared these

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