HomeSuspension > Suspension, Springs and Related ComponentsMevotech GS86578 Suspension Ball Joint - Front Lower
Part #: GS86578

Mevotech GS86578 Suspension Ball Joint - Front Lower

Front Lower
40 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, bZ4X, Crown Signia, NX250, NX350, NX350h, NX450h+, RAV4, RAV4 Prime, RZ300e, RZ450e, and Venza
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OE-Style Front Lower Ball Joint

Mevotech GS86578 is an Original Grade front lower suspension ball joint built as an exact match to the original manufacturer for fit, form, and function. It restores OE-level steering response and ride quality for routine driving on applications such as Toyota RAV4, Lexus NX250, and Toyota Venza.

Key Features

  • Original Grade OE-style replacement for the front lower suspension position
  • Pre-greased for immediate service
  • Threaded stud with M14 - 1.5 thread size
  • Bolt-in mounting design for direct replacement service
  • Dust boot included with rubber boot material and black finish
  • Castle nut, cotter pin, and mounting hardware included where required
  • Non-adjustable ball joint assembly

Detailed Product Overview

The Mevotech GS86578 suspension ball joint is engineered for direct replacement on front lower applications where OE fit and function matter. It is designed to restore handling precision and ride control on vehicles including the Toyota RAV4, Lexus NX350, and Toyota bZ4X. This part cross-references BJ30037 for the same application.

As a bolt-in ball joint assembly, GS86578 is built for straightforward service on commuter-focused vehicles that need a dependable suspension repair without changing the original suspension geometry. The pre-greased design, threaded stud, and included dust boot support clean, efficient installation and long-term joint protection.

What This Part Helps Address

  • Front-end looseness or play from a worn lower ball joint
  • Clunking or knocking noises from the front suspension
  • Uneven steering feel or reduced road control
  • Suspension inspection failures related to joint wear
  • Restoration of OE ride and handling on daily-driven vehicles

Installation Notes and Tips

Fits 2019-2025 Toyota RAV4, front lower. Fits 2021-2024 Toyota RAV4 Prime, front lower. Fits 2021-2024 Toyota Venza, front lower. Fits 2022-2025 Lexus NX250, front lower. Fits 2022-2025 Lexus NX350, front lower. Fits 2022-2025 Lexus NX350h, front lower. Fits 2022-2025 Lexus NX450h+, front lower. Fits 2024-2025 Lexus RZ300e, front lower. Fits 2023-2025 Lexus RZ450e, front lower. Fits 2023-2025 Toyota bZ4X, front lower. Fits 2025 Toyota Crown Signia, front lower.

Confirm the front lower application before installation and verify the M14 - 1.5 stud thread size matches the original part. Replace worn hardware only as needed and follow the vehicle service procedure for torque and alignment checks after suspension work.

Quality Assurance

Mevotech Original Grade parts are built to match the original manufacturer’s fit, form, and function for OE-style replacement service. GS86578 is supplied with the listed service hardware and components for the application.

BrandMevotech
Part NumberGS86578
Stud Thread SizeM14 - 1.5
Pre-GreasedYes
Castle Nut IncludedYes
Dust Boot IncludedYes
Ball Joint AssemblyYes
Cotter Pin IncludedYes
Mounting Hardware IncludedYes
AdjustableNo
Boot ColorBlack
Stud TypeThreaded
Mounting TypeBolt-in
Dust Boot MaterialRubber

This part fits 40 vehicles. Search below:

YearMakeModelPositionNotes
2025LexusNX250Front Lower
2025LexusNX350Front Lower
2025LexusNX350hFront Lower
2025LexusNX450h+Front Lower
2025LexusRZ300eFront Lower
2025LexusRZ450eFront Lower
2025ToyotabZ4XFront Lower
2025ToyotaCrown SigniaFront Lower
2025ToyotaRAV4Front Lower
2024LexusNX250Front Lower
2024LexusNX350Front Lower
2024LexusNX350hFront Lower
2024LexusNX450h+Front Lower
2024LexusRZ300eFront Lower
2024LexusRZ450eFront Lower
2024ToyotabZ4XFront Lower
2024ToyotaRAV4Front Lower
2024ToyotaRAV4 PrimeFront Lower
2024ToyotaVenzaFront Lower
2023LexusNX250Front Lower
2023LexusNX350Front Lower
2023LexusNX350hFront Lower
2023LexusNX450h+Front Lower
2023LexusRZ450eFront Lower
2023ToyotabZ4XFront Lower
2023ToyotaRAV4Front Lower
2023ToyotaRAV4 PrimeFront Lower
2023ToyotaVenzaFront Lower
2022LexusNX250Front Lower
2022LexusNX350Front Lower
2022LexusNX350hFront Lower
2022LexusNX450h+Front Lower
2022ToyotaRAV4Front Lower
2022ToyotaRAV4 PrimeFront Lower
2022ToyotaVenzaFront Lower
2021ToyotaRAV4Front Lower
2021ToyotaRAV4 PrimeFront Lower
2021ToyotaVenzaFront Lower
2020ToyotaRAV4Front Lower
2019ToyotaRAV4Front 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:

10865783GS865784333009A804333009A9043330492254333049235BJ30037EGS86578GS86578

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