Delphi TC4399 Suspension Control Arm and Ball Joint Assembly - Front Right Lower
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Delphi

Delphi TC4399 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Brand Delphi TC4399
Position Front Right Lower
Fits Mercedes-Benz · 5 vehicles

OE-focused design. Built with dimensional and material analysis for consistent fit and function.

Extreme-condition tested. Validated from below -40 C to over 120 C with 720 hours of salt spray.

Suspension assembly. Control arm and ball joint construction for replacement service.

Cross-references Suspensia X31CJ1394, 247-330-88-02 and A-247-330-88-02 for the same application. See all 3.

$221.00Free shipping
In stock · usually ships same day before 1pm CST
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Order total $221.00
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Free returns within 60 days if it doesn't fit when fitment is verified.
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OE-Style Suspension Control Arm

Delphi TC4399 is a front right lower suspension control arm and ball joint assembly built for direct-fit replacement on compatible applications. It is engineered with OE-focused dimensional and material analysis to support proper fit and consistent suspension geometry.

Key Features

  • Front right lower control arm and ball joint assembly
  • OE-focused design for fit and function
  • Tested for temperature extremes below -40 C and above 120 C
  • Exposed to 720 hours of salt spray for corrosion resistance validation
  • Delphi aftermarket steering and suspension expertise

Detailed Description

Delphi TC4399 is a suspension control arm and ball joint assembly for the front right lower position on compatible Mercedes-Benz GLB250 applications. Delphi applies OE engineering knowledge to its aftermarket steering portfolio, using dimensional and material analysis to improve compatibility between the replacement part and the original equipment layout. The TC4399 part number is also referenced as TC4399 for ordering and catalog lookup.

This part cross-references Monroe Shocks & Struts (e.g., 247-330-88-02, A-247-330-88-02) for the same application.

What It Is Used For

  • Restoring worn suspension control arm and ball joint function
  • Addressing looseness or play in the front suspension
  • Replacing a damaged lower control arm assembly
  • Correcting suspension geometry concerns after component wear
  • Supporting stable steering response in the front suspension

Installation Notes and Tips

Fits 2020-2024 Mercedes-Benz GLB250, front right lower. Confirm the position and application before installation, and compare the original part to the replacement unit for mounting points and geometry. The TC4399 should be matched to the vehicle’s exact suspension configuration.

Quality Assurance

Delphi subjects this part to extreme-temperature testing and extended salt-spray exposure, and uses OE-level dimensional and material analysis to support fit and performance consistency.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2024Mercedes-BenzGLB250Front Right Lower—
2023Mercedes-BenzGLB250Front Right Lower—
2022Mercedes-BenzGLB250Front Right Lower—
2021Mercedes-BenzGLB250Front Right Lower—
2020Mercedes-BenzGLB250Front Right Lower—
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Suspensia — X31CJ1394247-330-88-02A-247-330-88-02