Dorman 523-223 Differential Mount Bushing - Rear
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Dorman

Dorman 523-223 Differential Mount Bushing - Rear

Brand Dorman 523-223
Position Rear
Color Black
Grade Type Regular
Inside Diameter 14.25
Length 61
Material Steel
Material Thickness 28.1
Mounting Hardware Included No
Outside Diameter 48.3
Package Contents 1 Bushing
Universal Or Specific Fit Specific
Fits Cadillac · 24 vehicles

OE-style replacement. Precision-engineered and rigorously tested for reliable performance.

Steel construction. Built with a durable steel body for dependable support.

Differential mount bushing. A direct replacement for the original equipment bushing.

Cross-references 89058605 and NI for the same application. See all 2.

$35.72Free shipping
In stock · usually ships same day before 1pm CST
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Order total $35.72
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Differential Mount Bushing options

Dorman 523-223 Differential Mount Bushing

Dorman 523-223 is a specific-fit differential mount bushing for rear applications on select Cadillac vehicles. Built from steel with a black finish, it is engineered as a direct replacement for the original equipment bushing on supported models.

Key Features

  • Specific-fit differential mount bushing for rear installation
  • Steel construction with black finish
  • Precision-engineered replacement for OE-style fit and function
  • Designed for select Cadillac CTS, SRX, and STS applications
  • Cross-reference part number: 89058605

Product Details

This differential mount bushing is built to match the original mounting location and dimensions needed for the rear differential support on select Cadillac CTS, Cadillac SRX, and Cadillac STS models. Dorman 523-223 measures 61 in length, 48.3 outside diameter, 14.25 inside diameter, and 28.1 material thickness, with a regular-grade steel construction for a direct replacement approach. It is a fitment-specific part, not a universal bushing, and is intended for vehicles that require the listed OE-style configuration.

Compatible With 2004-2007 Cadillac CTS, rear support bushing; 2004 Cadillac SRX, rear support bushing from VIN 156139; 2005-2009 Cadillac SRX, rear support bushing; and 2005-2011 Cadillac STS, rear support bushing. The Dorman 523-223 part number is also useful when matching replacement needs against OE reference 89058605.

Common Repair Symptoms

  • Rear differential movement or looseness
  • Clunking or knocking from the driveline area
  • Excess vibration under acceleration or load changes
  • Worn or deteriorated differential support bushing
  • Incorrect fitment from a previous replacement part

Installation Notes

Verify the vehicle year, model, rear position, and VIN note before installation, especially on 2004 Cadillac SRX applications. Inspect the surrounding differential mount and hardware condition during service, since mounting hardware is not included. Confirm the bushing dimensions and OE reference before pressing the part into place.

Quality Assurance

Dorman states that this differential mount bushing is precision-engineered and rigorously tested for reliable replacement on specific vehicles. The part is built to meet the requirements of the listed Cadillac applications and to restore proper rear differential support.

This part fits 24 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelTransmissionLitersCylindersPositionNotes
2011CadillacSTSPlatinum———RearSupport Bushing
2011CadillacSTSBase———RearSupport Bushing
2010CadillacSTSBase———RearSupport Bushing
2009CadillacSRX————RearSupport Bushing
2009CadillacSTSPlatinum———RearSupport Bushing
2009CadillacSTSBase———RearSupport Bushing
2008CadillacSRX————RearSupport Bushing
2008CadillacSTSPlatinum———RearSupport Bushing
2008CadillacSTSBase———RearSupport Bushing
2007CadillacCTS——2.8LV6RearSupport Bushing
2007CadillacCTS——3.6LV6RearSupport Bushing
2007CadillacSRX————RearSupport Bushing
2007CadillacSTSBase———RearSupport Bushing
2006CadillacCTS——2.8LV6RearSupport Bushing
2006CadillacCTS——3.6LV6RearSupport Bushing
2006CadillacSRX————RearSupport Bushing
2006CadillacSTSBase———RearSupport Bushing
2005CadillacCTS—Automatic2.8LV6RearSupport Bushing
2005CadillacCTS——3.6LV6RearSupport Bushing
2005CadillacSRX————RearSupport Bushing
2005CadillacSTSBase———RearSupport Bushing
2005CadillacSTSElegance———RearSupport Bushing
2004CadillacCTS——3.6LV6RearSupport Bushing
2004CadillacSRX————RearSupport Bushing; From VIN 156139
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
89058605NI