HomeSuspension > Suspension, Springs and Related ComponentsDorman 539-859 Suspension Ball Joint - Front Lower
Part #: 539-859

Dorman 539-859 Suspension Ball Joint - Front Lower

Front Lower
6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, CX-7
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Dorman 539-859 Front Lower Ball Joint

Dorman 539-859 is a threaded, press-in suspension ball joint engineered as a direct replacement for the original equipment on specific vehicles. It is built from steel with a protective dust boot and is designed for the front lower position on 2007-2012 Mazda CX-7 models.

Key Features

  • Fits 2007-2012 Mazda CX-7, front lower
  • Steel construction with grey finish
  • Threaded design with press-in mounting type
  • Dust boot included for joint protection
  • Premium suspension grade type
  • Mounting hardware included
  • Wrench size: 12 mm
  • Part number: 539-859

Detailed Description

This Dorman suspension ball joint is precision-engineered and tested for reliable OE-style replacement performance. It is designed for the front lower suspension on the Mazda CX-7, helping restore proper steering and suspension articulation where wear can affect handling and tire wear. The steel body, threaded stud design, and included dust boot support durable service in demanding road conditions. If you are searching for a front lower ball joint for 2007-2012 Mazda CX-7 models, Dorman 539-859 is a direct-fit service part to consider. This part cross-references MOOG Chassis Products K500325 for the same application.

What It Helps Fix

  • Front-end clunking or popping from a worn ball joint
  • Loose or imprecise steering feel
  • Uneven tire wear caused by suspension play
  • Suspension noise during turning or braking
  • Excess movement in the front lower suspension joint

Installation Notes and Tips

Fits 2007-2012 Mazda CX-7, front lower. Verify the vehicle’s suspension configuration before installation and compare the original joint dimensions, including the 61 mm maximum outside diameter and 111 mm length, to confirm proper match. The press-in mounting style requires appropriate suspension service tools, and the 12 mm wrench size should be checked during removal and installation. Part number 539-859 is intended for direct replacement use on the listed application.

Quality Assurance

Dorman states this ball joint is precision-engineered and rigorously tested to provide a reliable replacement for the original equipment on specific vehicles. The premium suspension grade, steel construction, and dust boot support consistent service life in the front lower suspension of the Mazda CX-7.

BrandDorman
Part Number539-859
MaterialAcero
MaterialSteel
Maximum Outside Diameter61
Length111
ColorGrey
ColorGris
Castle Nut IncludedNo
Castle Nut IncludedNon
Grease Fitting IncludedNo
Grease Fitting IncludedNon
Suspension Grade TypePremium
Bushings IncludedNo
Bushings IncludedNon
Dust Boot IncludedOui
Dust Boot Included
Dust Boot IncludedYes
Ball Joint AssemblyOui
Ball Joint Assembly
Ball Joint AssemblyYes
Width59
TypeRoscado
TypeThreaded
Cotter Pin IncludedNo
Cotter Pin IncludedNon
Cotter Pin HoleNo
Cotter Pin HoleNon
Mounting Hardware IncludedOui
Mounting Hardware Included
Mounting Hardware IncludedYes
Washers IncludedNo

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2012MazdaCX-7Front Lower
2011MazdaCX-7Front Lower
2010MazdaCX-7Front Lower
2009MazdaCX-7Front Lower
2008MazdaCX-7Front Lower
2007MazdaCX-7Front Lower

* 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:

1008031GS76506JBJ1225K500325MS76506TC3655

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