HomeSuspension > Suspension, Springs and Related ComponentsSuspensia X01CJ0051 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward
Part #: X01CJ0051

Suspensia X01CJ0051 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

Front Left Lower Rearward
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, A6 Quattro, A7 Sportback, Q5, Q5 Sportback, S6, S7 Sportback, and SQ5
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Suspension Control Arm Assembly for Audi Applications

Restore front suspension geometry with the Suspensia X01CJ0051 suspension control arm and ball joint assembly. This forged aluminum OE-style replacement is built for the front left lower rearward position and is pre-greased for service-ready installation. It is a direct-fit chassis part for select Audi Q5, SQ5, Q5 Sportback, A6 Quattro, A7 Sportback, S6, and S7 Sportback applications.

Key Features

  • Forged aluminum construction for strength and reduced unsprung weight
  • Pre-greased assembly for immediate use
  • Includes bushings and dust boot
  • Rubber bushings and rubber dust boot for OE-style fit and isolation
  • Black bushing and boot finish
  • Stud thread size: M14 x 1.5
  • Lock nut included
  • Direct OE fit and OE look

Detailed Description

The Suspensia X01CJ0051 is a suspension control arm and ball joint assembly engineered for the front left lower rearward position. Built from forged aluminum, it matches the OE-style layout expected in modern Audi chassis systems while providing the correct mounting geometry for precise suspension operation. This part number, X01CJ0051, is a direct replacement for worn or damaged control arm assemblies on select Audi Q5 and SQ5 models, as well as related Audi performance and luxury applications. This part cross-references MOOG Chassis Products RK623720 for the same application.

Suspensia manufactures chassis components in a fully automated OE production facility in Turkiye and supplies parts built to OE or better quality standards for the North American aftermarket. The brand’s manufacturing system is certified to IATF 16949:2016, ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and ISO 50001:2018.

What This Part Helps Address

  • Clunking or knocking from the front suspension
  • Excessive play in the control arm or ball joint
  • Uneven tire wear caused by worn suspension geometry
  • Steering looseness or inconsistent front-end response
  • Failed rubber bushings or damaged dust boot components

Installation Notes and Tips

  • Fits 2018-2023 Audi Q5, Front Left Lower Rearward
  • Fits 2018-2023 Audi SQ5, Front Left Lower Rearward
  • Fits 2021-2022 Audi Q5 Sportback, Front Left Lower Rearward
  • Fits 2019-2021 Audi A6 Quattro, Front Left Lower Rearward
  • Fits 2019-2021 Audi A7 Sportback, Front Left Lower Rearward
  • Fits 2020-2021 Audi S6, Front Left Lower Rearward
  • Fits 2020-2021 Audi S7 Sportback, Front Left Lower Rearward
  • Verify the stud thread size and mounting position before installation
  • Inspect adjacent suspension hardware and alignment settings after replacement
  • Professional alignment is recommended after control arm service

Quality Assurance

Suspensia chassis parts are produced to OE fit and OE appearance standards in a certified manufacturing environment. The X01CJ0051 is built for consistent fitment and repeatable assembly quality across the listed Audi Q5, SQ5, and related applications.

BrandSuspensia
Part NumberX01CJ0051
MaterialForged aluminum
Bushing ColorBlack
Stud Thread SizeM14 x 1.5
Pre-GreasedYes
Castle Nut IncludedNo
Grease Fitting IncludedNo
Bushings IncludedYes
Dust Boot IncludedYes
Cotter Pin IncludedNo
Grade TypeRegular
Boot MaterialRubber
GreaseableNo
Boot ColorBlack
Bushing MaterialRubber
Wrench Size21
Dust Boot MaterialRubber
9906No
Lock Nut IncludedYes

This part fits 24 vehicles. Search below:

YearMakeModelPositionNotes
2023AudiQ5Front Left Lower Rearward
2023AudiSQ5Front Left Lower Rearward
2022AudiQ5Front Left Lower Rearward
2022AudiQ5 SportbackFront Left Lower Rearward
2022AudiSQ5Front Left Lower Rearward
2021AudiA6 QuattroFront Left Lower Rearward
2021AudiA7 SportbackFront Left Lower Rearward
2021AudiQ5Front Left Lower Rearward
2021AudiQ5 SportbackFront Left Lower Rearward
2021AudiS6Front Left Lower Rearward
2021AudiS7 SportbackFront Left Lower Rearward
2021AudiSQ5Front Left Lower Rearward
2020AudiA6 QuattroFront Left Lower Rearward
2020AudiA7 SportbackFront Left Lower Rearward
2020AudiQ5Front Left Lower Rearward
2020AudiS6Front Left Lower Rearward
2020AudiS7 SportbackFront Left Lower Rearward
2020AudiSQ5Front Left Lower Rearward
2019AudiA6 QuattroFront Left Lower Rearward
2019AudiA7 SportbackFront Left Lower Rearward
2019AudiQ5Front Left Lower Rearward
2019AudiSQ5Front Left Lower Rearward
2018AudiQ5Front Left Lower Rearward
2018AudiSQ5Front Left Lower Rearward

* 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:

526-21180A407693D80A407693E80A407693GCMS701170RK623720

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