HomeSuspension > Suspension, Springs and Related ComponentsDorman 521-607 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper
Part #: 521-607

Dorman 521-607 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper

Rear Left Upper
⚙️ 12 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Nissan and INFINITI, 350Z and G35
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-607 suspension control arm and ball joint assembly is engineered for precise fitment on Infiniti 350Z and Nissan G35 models. Designed with durable materials and pre-greased components, this assembly ensures consistent suspension performance and vehicle handling.

  • Pre-greased for immediate installation and reduced maintenance
  • Includes rubber bushings and mounting hardware for a complete replacement
  • Aluminum control arm with a black finish for corrosion resistance
  • Press-in ball joint with threaded stud for secure mounting
  • Compatible with Infiniti 350Z and Nissan G35 suspension systems

Durable Construction and Design Features

This suspension control arm and ball joint assembly features a casting/forged aluminum control arm that balances strength and weight savings. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb vibrations and reduce noise, while the press-in ball joint with a 14mm threaded stud ensures a secure and reliable connection. The control arm measures up to 288.5 mm in width and 237 mm in length, with a single 12.3 mm mounting hole for precise fitment. The black finish provides added protection against corrosion and wear.

Compatible Vehicles and Applications

This Dorman 521-607 assembly is specifically designed for use with Infiniti 350Z and Nissan G35 models. It is intended for light suspension grade applications and is not adjustable, making it suitable for standard suspension setups. The assembly replaces worn or damaged control arms and ball joints to restore proper suspension geometry and vehicle handling.

  • Eliminates suspension noise caused by worn bushings or ball joints
  • Restores proper wheel alignment and steering response
  • Addresses uneven tire wear due to faulty control arm components
  • Improves ride comfort by reducing vibrations and harshness
  • Prevents suspension failure from damaged or corroded parts

Installation Notes and Tips

Installation of the Dorman 521-607 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is press-in type with a threaded stud, proper tools are recommended for removal and installation to avoid damage. The assembly comes pre-greased and includes mounting hardware, simplifying the replacement process. Verify vehicle compatibility with Infiniti 350Z and Nissan G35 models before installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The 521-607 suspension control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in your suspension repair.

BrandDorman
Part Number521-607
AdjustableNo
Ball Joint IncludedYes
Ball Joint InstalledYes
Ball Joint Mounting TypePress In
Ball Joint Stud TypeThreaded
Ball Joint Thread Diameter14
Bushing MaterialRubber
Bushings IncludedYes
Control Arm ColorBlack
Control Arm MaterialAluminum
Control Arm Maximum Length237
Control Arm Maximum Width288.5
Control Arm TypeCasting/Forged
Grade TypeRegular
Grease Fitting IncludedNo
Mounting Hardware IncludedYes
Mounting Hole Diameter12.3 mm
Mounting Hole Quantity1
Package ContentsControl Arm and Ball Joint Assembly
Pre-GreasedYes
Suspension Grade TypeLight

This part fits 12 vehicles. Search below:

YearMakeModelBody TypePositionNotes
2009Nissan350ZRear Left Upper
2008Nissan350ZRear Left Upper
2007INFINITIG35CoupeRear Left Upper
2007Nissan350ZRear Left Upper
2006INFINITIG35Rear Left Upper
2006Nissan350ZRear Left Upper
2005INFINITIG35Rear Left Upper
2005Nissan350ZRear Left Upper
2004INFINITIG35Rear Left Upper
2004Nissan350ZRear Left Upper
2003INFINITIG35Rear Left Upper
2003Nissan350ZRear Left Upper

* 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:

102-659826062904CB3006455502AL50ECA976BCMS30167RK621762SK521607TC6670

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