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Moog LK023 Suspension Knuckle Assembly - Front LeftOE Quality 60-Day Returns
Part #: LK023

Moog LK023 Suspension Knuckle Assembly - Front Left

Front Left
13 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, Highlander, RX330, RX350, and RX400h
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OE-Style Front Left Knuckle Assembly

MOOG LK023 is a complete front left suspension knuckle assembly for select Lexus and Toyota applications. It is built with durable materials and tested for dependable performance, with a design that supports faster, more straightforward replacement work.

  • Front left suspension knuckle assembly for direct replacement service
  • Fits 2007-2009 Lexus RX350, front left
  • Fits 2006-2008 Lexus RX400h, front left
  • Fits 2006-2007 Toyota Highlander, front left
  • Fits 2004-2006 Lexus RX330, front left
  • Includes snap ring, bearing, knuckle, hub assembly, backing plate, backing plate mounting bolts, deflector, and axle nut
  • 30-spline application

Fitment and Application Details

This MOOG suspension knuckle assembly LK023 is built for the front left position on the Lexus RX350, Lexus RX400h, Toyota Highlander, and Lexus RX330 listed above. It is a fitment-specific replacement for vehicles that require a 30-spline front left knuckle assembly, making it a practical choice for suspension and hub service on these models.

This part cross-references part number 4778248030 for the same application.

What This Part Helps Address

  • Worn or damaged front left knuckle assembly
  • Hub and bearing service on the front suspension
  • Noise or looseness related to a failing knuckle or bearing interface
  • Corrosion or damage affecting steering knuckle components
  • Replacement needs after front-end suspension repair

Installation Notes

Verify the vehicle’s front left position, 30-spline configuration, and model year before installation. Because this assembly includes multiple integrated components, compare the original unit to the replacement part before disassembly and follow factory service procedures for torque and alignment checks after installation.

Quality Assurance

MOOG backs this knuckle assembly with materials selection and testing focused on consistent fit and reliable service performance. LK023 is engineered as a complete replacement assembly to support efficient installation on the specified Lexus RX350, Lexus RX400h, Toyota Highlander, and Lexus RX330 applications.

This part fits 13 vehicles. Search below:

YearMakeModelSubmodelDrive TypeLitersCylindersPositionNotes
2009LexusRX350Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2008LexusRX350Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2008LexusRX400hFront Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2007LexusRX350Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2007LexusRX400hFront Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2007ToyotaHighlanderHybridFWD3.3LV6Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2007ToyotaHighlanderHybrid LimitedFWD3.3LV6Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2006LexusRX330Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2006LexusRX400hFront Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2006ToyotaHighlanderHybridFWD3.3LV6Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2006ToyotaHighlanderHybrid LimitedFWD3.3LV6Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2005LexusRX330Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.
2004LexusRX330Front Leftwith 30 Splines; Contains Snap Ring, Bearing, Knuckle, Hub Assembly, Backing Plate, Backing Plate Mounting Bolts, Deflector, and Axle Nut.

* 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:

4778248030

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

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