HomeSuspension > Shocks and StrutsKYB 339085 Suspension Strut - Front Left
Part #: 555-123

KYB 339085 Suspension Strut - Front Left

Excel-G
35 vehicles fit this part
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Excel-G
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Overview of KYB Excel-G Suspension Strut 339085

The KYB Excel-G Suspension Strut 339085 is designed to restore the original ride quality and handling of your vehicle. Engineered for Chevrolet and Pontiac models including the Cobalt, G5, HHR, and Pursuit, this strut offers reliable performance and precise fitment.

  • Compressed length: 10.55 inches
  • Extended length: 17.63 inches
  • Stroke length: 7.08 inches
  • Upper mount type: 14x1.50
  • Right stop (R-stop) included
  • No dust cover or internal rebound spring
  • Part number: 339085

About the KYB Excel-G Product Line

The Excel-G line from KYB is engineered to provide a balance between comfort and control by restoring original equipment ride quality. This suspension strut is designed to meet or exceed OEM specifications, making it a suitable replacement for factory-installed components on compatible Chevrolet and Pontiac vehicles. The Excel-G struts are built to improve handling and stability without compromising ride comfort.

Detailed Product Description

The KYB Excel-G Suspension Strut 339085 features a compressed length of 10.55 inches and an extended length of 17.63 inches, providing a stroke length of 7.08 inches. The upper mount type is 14x1.50, ensuring proper fitment for the specified vehicle models. This strut includes a right stop (R-stop) but does not come with a dust cover or internal rebound spring. These specifications contribute to consistent damping performance and durability under normal driving conditions.

Common Applications and Issues Addressed

  • Restores original ride height and suspension travel on Chevrolet Cobalt, Pontiac G5, HHR, and Pursuit
  • Improves vehicle handling and stability
  • Reduces excessive bouncing and body roll
  • Addresses worn or leaking factory struts
  • Enhances braking performance by maintaining proper suspension geometry

Installation Notes and Tips

  • Ensure compatibility with Chevrolet Cobalt, Pontiac G5, HHR, and Pursuit before installation
  • Use proper tools to remove and install the 14x1.50 upper mount
  • Check for any additional suspension component wear during installation
  • Professional installation is recommended to maintain safety and performance

Quality Assurance and Warranty

KYB Excel-G struts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The part number 339085 is backed by KYB's quality control processes. Warranty coverage details should be confirmed with the point of purchase or KYB directly.

BrandDorman
Part Number555-123
PositionExcel-G
Closed End Diameter1.883 in
MaterialSteel
Open End Diameter (in)1.883 in
Package Contents10 Steel Expansion Plugs

This part fits 35 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2011ChevroletHHRLSFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2011ChevroletHHRLS PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2011ChevroletHHRLTFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2010ChevroletCobalt2.2LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2010ChevroletHHRLSFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2010ChevroletHHRLS PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2010ChevroletHHRLTFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2010ChevroletHHRLT PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2009ChevroletCobalt2.2LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2009ChevroletHHRLSFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2009ChevroletHHRLS PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2009ChevroletHHRLTFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2009ChevroletHHRLT PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2009PontiacG5Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2008ChevroletCobalt2.2LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2008ChevroletCobalt2.4LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2008ChevroletHHRLSFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2008ChevroletHHRLS PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2008ChevroletHHRLTFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2008ChevroletHHRLT PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2008PontiacG5Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2007ChevroletCobalt2.2LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2007ChevroletCobalt2.4LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2007ChevroletHHRLSFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2007ChevroletHHRLS PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2007ChevroletHHRLTFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2007ChevroletHHRLT PanelFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2007PontiacG5Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2006ChevroletCobalt2.2LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2006ChevroletCobalt2.4LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2006ChevroletHHRLSFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2006ChevroletHHRLTFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2006PontiacPursuitFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2005ChevroletCobalt2.2LL4Front LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G
2005PontiacPursuitFront LeftReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Excel-G

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

2863071EPC-203

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.