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Unity 15-112800 front air spring for Mercedes W251 chassis

Unity

Unity 15-112800 Front Air Spring

SKU CH-T3XG-XK0PQ

Replaces the front air spring on W251-chassis Mercedes R-Class models with four-corner air suspension from 2006 to 2013

  • Restores air suspension ride comfort for W251 chassis
  • 50 years manufacturing expertise behind every unit
  • Direct-fit replacement for R320 2007-2009 models
  • Direct-fit replacement for R350 2006-2013 models
  • Direct-fit replacement for R500 2006-2008 models

Unity Front Air Spring 15-112800

This Unity front air spring restores the four-corner air suspension on W251 chassis Mercedes-Benz models. It fits R320 models from 2007 to 2009, R350 models from 2006 to 2013, and R500 models from 2006 to 2008. The part replaces a failed factory spring to bring back the original ride height and load-levelling function.

Elite Suspension Line quality for direct replacement

Unity manufactures this spring in its Elite Suspension Line, drawing on more than 50 years of aftermarket experience. The design matches the original equipment mounting points so installation proceeds without modification. The spring is built to withstand repeated compression cycles and road debris exposure for long-term reliability.

Replaces worn or leaking original air springs

This part addresses sagging corners, compressor over-run and fault codes caused by cracked or perforated factory units. It is the correct choice when the air suspension warning appears or the vehicle sits low after parking. It does not fit W251 models equipped with conventional steel coil springs.

Highlights

  • Restores air suspension ride comfort for W251 chassis
  • 50 years manufacturing expertise behind every unit
  • Direct-fit replacement for R320 2007-2009 models
  • Direct-fit replacement for R350 2006-2013 models
  • Direct-fit replacement for R500 2006-2008 models

Specifications

BrandUNITY

Questions about this item

Does the 15-112800 spring mount directly to the W251 chassis points?

Yes, it is built to replace the original front air spring on W251 chassis models equipped with four-corner air ride.

Which Mercedes models accept the 15-112800 front air spring?

It fits 2007-2009 R320, 2006-2013 R350 and 2006-2008 R500, all on W251 chassis with four-corner air suspension.

What is the typical installation mistake with the 15-112800 spring?

Fitting it to a W251 vehicle that does not have four-corner air ride, which uses a different spring design.

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