2003 Lexus RX300 Suspension Parts

Essential 2003 Lexus RX300 Suspension Parts

Monroe – OESpectrum Strut (Part No.72101)

OESpectrum Strut

from

$196.99
Designed to restore a vehicle’s original factory drivability and performance, Monroe® OESpectrum® struts provide an exceptional level of handling precision and control while filtering out noise, vibration and harshness.

Product Features:
  • IMPROVES STABILITY — ASD (Acceleration Sensitive Damping) valving technology and fluon-banded piston deliver greater control and handling while improving ride comfort
  • EXCEPTIONAL HANDLING — Rod displaced valving, tuned specifically to each vehicle, adjusts to road extremes to provide consistency and a smooth ride (on most applications)
  • CONSISTENT RIDE — OE all-weather fluid contains special additives to assist with extreme temperatures and help reduce oil breakdown
  • IMPROVES PERFORMANCE — Nitrogen gas charge maintains tire-to-road contact for improved ride and handling by reducing aeration (on most applications)
  • LONGER SERVICE LIFE — Chrome-plated piston, bronze reinforced rod guide bearing and special single lip seal provide durability and longer service life (where applicable)
  • Nitrogen Gas Charged: For improved ride and handling, helps maintain tire to road contact by reducing aeration – on most applications
  • Unique Rod Guide and Single Lip Seal: Bronze reinforced rod guide bearing and special seal provides longer service life and consistent performance.
  • Special Dust Boot/Jounce Bumper: Protective dust boot reduces dirt and any moisture build-up. Jounce bumper helps prevent severe suspension movement. Dust boot & jounce bumper sold separately.
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Dorman – Suspension Knuckle Bushing (Part No.905-521)

Suspension Knuckle Bushing

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$68.99
This suspension knuckle bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
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Energy Suspension – CntrlArmBshngKt (Part No.8.3128R)

CntrlArmBshngKt

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$129.99
CntrlArmBshngKt

Sachs – Suspension Strut Mount (Part No.L3030750275SAC)

Suspension Strut Mount

from

$107.11
SACHS Suspension Strut Mount repair kits are designed to return the mount and bearing to Original Equipment standards.

Product Features:
  • SACHS Suspension Strut Mounts meet or exceed the OE designed specifications for the vehicle.
  • SACHS Strut Mounts are designed to restore smooth steering while reducing vibrations and noise.
  • It is highly recommended to replace your mounts, shocks and or struts in pairs.
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Monroe – Strut-Mate Strut Mounting Kit (Part No.903904)

Strut-Mate Strut Mounting Kit

from

$82.99
Every new strut deserves a Monroe® Strut-Mate® Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.

Product Features:
  • PERFECT PAIRING — Ideal match for the ride control characteristics of Monroe® struts, replace all worn strut components with quality Monroe parts (sold separately) for a complete four-corner ride control upgrade
  • REDUCES NOISE AND VIBRATION — Features advanced elastomer technology for enhanced metal-to-rubber bonding that reduces noise, vibration and memory steer for improved performance
  • REPLACES OE — Available for most Monroe strut applications, this is a direct fit for replacing the OE strut mount
  • RIGOROUS TESTING — Fit checked and ride tested for quality you can count on
  • EASY TO INSTALL — Includes premium-quality replacement components where applicable – SAE-grade nuts and bolts, upper and lower spring isolators, OE-style bearings and mount, upper spring seat and front bearing plate that install easily
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Monroe – Strut-Mate Strut Mounting Kit (Part No.903906)

Strut-Mate Strut Mounting Kit

from

$78.99
Every new strut deserves a Monroe® Strut-Mate® Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.

Product Features:
  • PERFECT PAIRING — Ideal match for the ride control characteristics of Monroe® struts, replace all worn strut components with quality Monroe parts (sold separately) for a complete four-corner ride control upgrade
  • REDUCES NOISE AND VIBRATION — Features advanced elastomer technology for enhanced metal-to-rubber bonding that reduces noise, vibration and memory steer for improved performance
  • REPLACES OE — Available for most Monroe strut applications, this is a direct fit for replacing the OE strut mount
  • RIGOROUS TESTING — Fit checked and ride tested for quality you can count on
  • EASY TO INSTALL — Includes premium-quality replacement components where applicable – SAE-grade nuts and bolts, upper and lower spring isolators, OE-style bearings and mount, upper spring seat and front bearing plate that install easily
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KYB – Strut Mount and Bearing (Part No.SM5179)

Strut Mount and Bearing

from

$81.99
KYB Strut Mounts eliminate the vibration and noise caused by old, hardened vibration insulators. They optimize suspension performance by offering OE quality replacement components designed for each application. KYB Strut Mounts cushion the impacts from road bumps to reduce the jarring effect, noise and vibration that old mounts transmit into the vehicle. Front bearing plates are the steering pivots and support vehicle weight. They are critical to steering performance and wheel alignment. KYB Strut Mounts and bearing plates have a reputation for providing the highest quality in the industry.

Product Features:
  • The Highest Quality Replacement Strut Mount Available
  • Optimizes Suspension Performance By Offering Original Equipment Quality Replacement Components Designed For Each Application
  • Superior Rubber Reduces Noise, Vibration And Harshness
  • Mount Bearings Provide Smoother Steering And Help Retain Front End Alignment
  • Matched Grade Studs And Nuts
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KYB – STRUT BELLOW (Part No.L303734949KYB)

STRUT BELLOW

from

$27.49
STRUT BELLOW

Monroe – Strut-Mate Strut Boot Kit (Part No.63631)

Strut-Mate Strut Boot Kit

from

$37.49
Designed to protect the strut, the Monroe® Strut-Mate® Boot Kit is the perfect replacement for a damaged jounce bumper or boot. Heavy-duty construction and unique design features make it the ideal choice for maximum rod protection and improved strut life.

Product Features:
  • REPLACES DAMAGED JOUNCE BUMPER OR BOOT — Avoid premature strut failure by replacing missing or damaged strut components
  • PROTECTS PISTON ROD — Protects piston rod finish from rust and corrosion and helps reduce oil leakage
  • KEEPS MOISTURE AND DIRT OUT — Self-draining design eliminates retention of moisture and other unwanted debris
  • ENHANCES STRUT LIFE — Delivers protection from severe suspension movement to improve strut durability
  • PERFECT PAIRING — Ideal match to protect strut rods, replace all worn strut components with quality Monroe struts (sold separately) for a complete four-corner ride control upgrade
  • EASY TO INSTALL — Direct fit OE replacement with firm friction connection that helps keep the boot in place
  • BUILT TO LAST — Soft-entry jounce bumper made of closed cell, micro-cellular urethane for maximum durability and to help reduce severe impacts
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MOOG – Strut Bellows (Part No.K90460)

Strut Bellows

from

$34.99
By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry’s Problem Solver.

Product Features:
  • Easy to install
  • Restores like-new steering and handling
  • Construction and design validated by MOOG engineers
  • Engineered to meet or exceed OE requirements
  • Incorporates proven design and engineering features
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KYB – Gas Strut (Part No.334264)

Gas Strut

from

$179.99
Ride Comfort may be important, but restoring a vehicles Ride Control, stability, stopping, lane change responsiveness and handling is critical. KYB Excel-G Shocks and Struts are designed for the most important performance purpose: Restoring the vehicles original capabilities. KYB is a world leading supplier of shocks and struts to new vehicle manufacturers and the Excel-G is made on the very same KYB OE assembly lines, uses the same OE quality components and is calibrated to restore original, designed performance, not change it. That has earned Excel-G the classification: OEA (Original Equipment for the Aftermarket). The KYB Excel-G is a nitrogen gas-charged, twin-tube design that includes every quality component that our global OEM products include and it is the preferred choice by professional technicians.

Product Features:
  • #1 Recommended Original Equipment Replacement Choice For Asian Subs And Crossovers
  • The KYB Excel-G Helps Restore The Designed Control And Handling Of Your Import Suva
  • The KYB Excel-G Uses A Triple Lip Fluid Seal To Reduce The Chance Of Oil And Gas Leaking Out
  • Vehicle Specific, Hand Assembled, In-House Damping Valves Correctly Manage Tire Contact, Steering Response And Body Movement
  • Made In Use
  • Electronic Safety Systems Depend On The Suspension, Brakes And Tires Operating As The Vehicle Manufacturer Intended. The KYB Excel-G Helps Keep Electronic Safety Systems Performing As Designed.
  • KYB Has The Strongest And Thickest Strut Bodies And Brackets In The Industry; Minimizing Flex To Maintain Correct Alignment In All Conditions
  • To Reduce The Chance Of Noise And Vibration KYB Recommends Installing New Strut Mounts, Part Number: Sm5175
  • Protect Your New Struts From Dirt, Debris And Salt With A KYB Strut Boot, Part Number: Sb101
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KYB – Excel-G Strut Assembly (Part No.L300091254KYX)

Excel-G Strut Assembly

from

$160.32
The KYB Excel-G OE-equivalent direct fit Strut Assembly is engineered to restore the vehicle’s originally designed handling and control. The Excel-G Shocks are calibrated to compensate for worn suspensions and is a great choice to restore OE performance and original driving conditions. Restores a vehicle’s originally designed handling and control. The KYB Excel-G is identical to the GR2 except for the product name and paint color.

Product Features:
  • Direct fit application for ease of installation
  • Calibrated to compensate for worn suspensions
  • Components and valving are designed specifically for each application
  • The best choice to restore OE performance and normal driving conditions
  • Built with quality that matches or exceeds OE
  • Coverage for domestic and import cars, trucks, vans, minivans, and SUV,s
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Monroe – Complete Strut Assembly: Includes Strut, Coil Spring, and Mount (Part No.281499)

Complete Strut Assembly: Includes Strut, Coil Spring, and Mount

from

$169.99
Engineered to get more miles from your vehicle, the RoadMatic strut assembly includes all required components in a single unit. It meets OE specifications and reduces installation time, eliminating the need for a spring compressor.

Product Features:
  • QUICKER, SAFER, EASIER AND COMPLETE REPAIR – Includes everything you need for strut replacement in a single, fully assembled unit with no need for a spring compressor
  • GET MORE MILES FROM YOUR RIDE – Engineered and fit and ride tested to meet OE spec
  • EASY TO INSTALL – Fully integrated design reduces installation time, eliminating the need for a spring compressor
  • CONSISTENT PERFORMANCE – Features nitrogen gas-charge and all-weather fluid for improved ride and handling
  • COVERAGE – Available for domestic and import passenger cars, light trucks and SUVs
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Monroe – Complete Strut Assembly: Includes Strut, Coil Spring, and Mount (Part No.271498)

Complete Strut Assembly: Includes Strut, Coil Spring, and Mount

from

$258.99
Featuring a vehicle-specific design, Monroe Quick-Strut strut assemblies are fit checked, ride tested and engineered to restore factory ride height and ride performance. Assembled in Paragould, AR, they include all required components in a single unit.

Product Features:
  • QUICKER, SAFER, EASIER AND COMPLETE REPAIR – Includes everything you need for strut replacement in a single, fully assembled unit with no need for a spring compressor
  • RESTORES RIDE HEIGHT – Precisely calibrated to meet the OE design, each application-specific coil spring type is engineered to restore ride height and support the vehicle’s weight
  • VEHICLE-SPECIFIC DESIGN – Application-specific coil spring, mount and strut designs ensure optimized ride and handling experience unique to each vehicle profile
  • OE QUALITY – Preassembled upper strut mount, coil spring, and strut feature an OE-style design for seamless fit, form, and function
  • MADE TO LAST – Manufactured with high-quality steel, featuring a superior tube and weld design to deliver structural integrity and durability
  • MAINTAINS VEHICLE CONTROL – Reduces body sway, vibration and road harshness before it reaches the passenger cabin for improved vehicle handling
  • IMPROVES STEERING – Premium upper strut mount helps ensure smooth, like-new steering precision and prevents noise, vibration, harshness and memory steer
  • RUST RESISTANCE – Protective coating resists rust and corrosion while salt spray testing ensures it’s ready for the elements
  • ASSEMBLED IN THE USA This Quick-Strut assembly is assembled with pride in Paragould, Arkansas from domestic and imported components
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MOOG – Trailing Arm (Part No.RK643094)

Trailing Arm

from

$49.49
MOOG premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection.

Product Features:
  • EASY TO INSTALL — Precision tolerances for easy installation and steering alignment giving you a perfect fit right out of the box
  • HIGHLY PRECISE ENGINEERING — Optimized bushings for quiet operation and resistance to wear, salt, road grime and oils
  • COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
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Dorman – Strut Rod Rear (Part No.521-911)

Strut Rod Rear

from

$105.99
Engineered for passenger safety and rigorously tested for secure performance, this trailing arm was designed as a direct replacement for your vehicle’s original part. Industry-leading evaluation process ensures smooth ride and predictable handling.

Product Features:
  • Direct replacement – this suspension trailing arm fits and functions like the original equipment part
  • Quality construction – manufactured from same materials as original equipment for safety and reliability
  • Durable – protective finish for long-lasting corrosion resistance
  • Quality tested – has undergone testing to ensure proper fit and performance
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Rare Parts – Spring Seat Insulator (Part No.RP53041)

Spring Seat Insulator

from

$105.99
This high quality chassis part will improve overall vehicle handling, reduce tire wear and increase the life of other steering and suspension components. These chassis parts are manufactured to meet or exceed OEM.

Product Features:
  • Reduces vibration
  • Reduces road noise
  • UV resistant
  • No Squeak
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KYB – Spring Seat Insulator (Part No.L5013242351KYB)

Spring Seat Insulator

from

$21.80
KYB Spring Seat Insulators eliminate the vibration and noise caused by old, hardened vibration insulators. They optimize suspension performance by offering OE quality replacement components designed for each application. KYB Spring Seat Insulator cushions the impacts from road bumps to reduce the jarring effect, noise and vibration that old mounts transmit into the vehicle.

Product Features:
  • Eliminates vibration and noise
  • Reduces squeaks, rattles, and vibration noise
  • Quality that matches or exceeds OE
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Dorman – Suspension Control Arm (Part No.520-403)

Suspension Control Arm

from

$138.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
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MOOG – Control Arm (Part No.RK620052)

Control Arm

from

$101.99
MOOG premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection.

Product Features:
  • PREMIUM BUSHINGS –┐Pre-installed with optimized stiffness to inhibit noise for a comfortable ride┐á
  • HARDENDED TO MAXIMIZE STRENGTHá–áStuds are induction hardened to maximize strength, resist breakage and improve fatigue lifeá
  • ENHANCED STRUCTURAL STRENGTH ┐ Material and heat treatment are carefully selected to meet application requirements
  • EASY TO INSTALL — Precision tolerances for easy installation and steering alignment giving you a perfect fit right out of the box
  • QUALITY ASSURANCEá–áLaser-etched ID provides visible assurance of genuine MOOG qualityá
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Valvoline – DEXRON®-VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart (Part No.822405)

DEXRON®-VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart

from

$14.49
Valvoline DEXRON®-VI ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors’ DEXRON®-VI specification. It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON®-II and/or DEXRON®-III are recommended. Recommended for use in the following applications: DEXRON®-VI, DEXRON®-III, DEXRON®-II, and Allison C-4.

Product Features:
  • Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions.
  • Enhanced anti-shudder protection for smooth shifting and maximum power transfer
  • Developed with anti-wear technology to help improve transmission durability
  • Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
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Royal Purple – Max Performance Synthetic Power Steering Fluid (Part No.01326)

Max Performance Synthetic Power Steering Fluid

from

$6.29
Max Performance Synthetic Power Steering Fluid

Rare Parts – Spring Seat (Part No.RP52753)

Spring Seat

from

$29.49
This high quality chassis part will improve overall vehicle handling, reduce tire wear and increase the life of other steering and suspension components. These chassis parts are manufactured to meet or exceed OEM.

Product Features:
  • Restores vehicle handling
  • Reduces road noise
  • Reduces vibration
  • UV resistant
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Monroe – Strut-Mate Strut Coil Spring Seat (Part No.909942)

Strut-Mate Strut Coil Spring Seat

from

$20.79
Every new strut deserves a Monroe® Strut-Mate® Mounting Kit. Designed to reduce noise and vibration, Strut-Mate Mounting Kits complement the ride control characteristics of Monroe struts. Install when replacing conventional struts or springs.

Product Features:
  • PERFECT PAIRING — Ideal match for the ride control characteristics of Monroe® struts, replace all worn strut components with quality Monroe parts (sold separately) for a complete four-corner ride control upgrade
  • REDUCES NOISE AND VIBRATION — Features advanced elastomer technology for enhanced metal-to-rubber bonding that reduces noise, vibration and memory steer for improved performance
  • REPLACES OE — Available for most Monroe strut applications, this is a direct fit for replacing the OE strut mount
  • RIGOROUS TESTING — Fit checked and ride tested for quality you can count on
  • EASY TO INSTALL — Includes premium-quality replacement components where applicable – SAE-grade nuts and bolts, upper and lower spring isolators, OE-style bearings and mount, upper spring seat and front bearing plate that install easily
See More

MTC – Spring Seat Insulator (Part No.L501363590MTC)

Spring Seat Insulator

from

$24.43
MTC Spring Seat Insulators eliminate the vibration and noise caused by old, hardened vibration insulators. They optimize suspension performance by offering OE quality replacement components designed for each application. MTC Spring Seat Insulator cushions the impacts from road bumps to reduce the jarring effect, noise and vibration that old mounts transmit into the vehicle.

Product Features:
  • Eliminates vibration and noise
  • Reduces squeaks, rattles, and vibration noise
  • Quality that matches or exceeds OE
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KYB – Jounce Bumper and Bellows (Part No.SB101)

Jounce Bumper and Bellows

from

$18.99
KYB Strut Boot Kits keep your struts protected from dirt, dust, sand, salt and other road debris. These harmful elements cause abrasive wear to the polished shaft, upper seal and bushing. KYB Strut Boot Kits prevent these contaminants from entering the strut by covering the entire strut shaft in a highly durable plastic bellows. This can easily extend the life of the strut. The KYB Strut Boot Kit includes a poly foam travel-limiting bumper. Its designed to protect the strut from bottoming out and protects other components from extreme movement damage.

Product Features:
  • Superior Quality Boot Helps Protect The Strut Shaft From Leak-Causing Dirt And Debris
  • Poly Foam Bumper Prevents The Strut From Bottoming Out
  • Built With Design And Quality That Matches Or Exceeds One
  • Protects The Upper Seal And Bushing
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Driveworks – Strut Bellow (Part No.DW-K90460)

Strut Bellow

from

$11.99
Driveworks Shock Mount, Suspension Strut Bellows

Product Features:
  • Designed to meet or exceeds OE performance specifications
  • Durable neoprene rubber
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2003 Lexus RX300 Suspension Parts

You count on your 2003 Lexus RX300 to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Suspension Parts. With 77 Suspension Parts ranging in price from $6.29 to $411.99, you’re sure to find everything you need for your 2003 Lexus RX300.

Brands matter. If you want to shop a specific Suspension Parts brand, we stock 14 different brands like Valvoline, Driveworks, and Moog. 2003 Lexus RX300 Suspension Parts start as low as $6.29!

One of the best ways to find top quality OEM or aftermarket Suspension Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 94 extensive product reviews on 2003 Lexus RX300 Suspension Parts. Some of the top-rated Suspension Parts products we carry are Strut-Mate Strut Boot Kit with 2.6 stars and Jounce Bumper and Bellows with 3.5 stars.

Did we mention you can order your Suspension Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Suspension Parts inventory for your 2003 Lexus RX300 below to get started!

Top-Rated Suspension Parts Brands For Your 2003 Lexus RX300

Trusted Suspension Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2003 Lexus RX300 running right for years to come. In our inventory you’ll find brands like Valvoline, Driveworks, Moog, and even more.

Popular Valvoline Suspension Parts

You’ll find popular Valvoline brand products across Air Suspension and Kits. All are waiting to get your 2003 Lexus RX300 back on the road. Some of the top-rated Valvoline products in these categories are:
DEXRON®-VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
from $14.49
(2)
DEXRON®-VI ATF Full Synthetic Automatic Transmission Fluid, 1 Quart
Suspension Self-Leveling Unit Fluids
Transfer Case Fluid, 1 Quart
from $14.99
(36)
Transfer Case Fluid, 1 Quart
Suspension Self-Leveling Unit Fluids

FAQs for 2003 Lexus RX300 Suspension Parts

What are the most purchased Suspension Parts for the 2003 Lexus RX300?

Out of 77 Suspension Parts for the 2003 Lexus RX300, the most popular in our inventory are:
DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart
from $11.99
This product is not rated
DEX/MERC ATF Conventional Automatic Transmission Fluid, 1 Quart
Suspension Self-Leveling Unit Fluids
Strut Bellow
from $11.99
(13)
Strut Bellow
Strut Bellows
Strut Bellows
from $34.99
(12)
Strut Bellows
Shock Boots, Levelers, and Accessories

What are the top-rated 2003 Lexus RX300 Suspension Parts?

Top-rated Suspension Parts for your 2003 Lexus RX300 based on customer reviews/ratings are:
Strut-Mate Strut Boot Kit
from $37.49
(9)
Strut-Mate Strut Boot Kit
“The boot snd bumper fit perfectly knto the upper strut mount on my 2011 f150, although they dont fit under the upper rubber for the spring like OEM th”
Jounce Bumper and Bellows
from $18.99
(6)
Jounce Bumper and Bellows
“Everything went great”
Strut-Mate Strut Mounting Kit
from $82.99
(3)
Strut-Mate Strut Mounting Kit
“Worked well and fit like a glove. Only time will tell if it holds up long term but appears to be well constructed.”