HomeSuspension > Shocks and StrutsUnity 15903 Suspension Strut and Coil Spring Assembly - Rear Left
Part #: 15903

Unity 15903 Suspension Strut and Coil Spring Assembly - Rear Left

Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation, Rear Left
10 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation, Rear Left
Fitment: Lexus and Toyota, RX350, Highlander, and RX330
Easy Returns — Return within 60 days for a full refund
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Overview of Unity Suspension Strut and Coil Spring Assembly

The Unity Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation (part number 15903) is designed for direct replacement on select Toyota and Lexus models. This economy-grade suspension strut assembly is fully assembled and ready to install, simplifying the repair process for 2004 to 2007 Toyota Highlander, Lexus RX330, and RX350 vehicles.

  • Pre-assembled complete strut assembly with coil spring and top mount
  • Compressed length: 15.41 inches
  • Travel length: 7.515 inches
  • Extended length: 22.925 inches
  • Body length: 14.31 inches
  • Compatible with Toyota Highlander (2004-2007) and Lexus RX330/RX350
  • Economy product grade for cost-effective suspension repair
  • Part number 15903 for precise fitment and identification

Product Line Details

The Unity Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation line offers a fully assembled suspension solution that reduces installation time and complexity. This product line integrates the coil spring, top mount, and all necessary components into one unit, ensuring consistent fitment and performance for compatible vehicles. Part number 15903 belongs to this line, providing a plug-and-play replacement for the front suspension strut assembly on select Toyota Highlander and Lexus RX models.

Technical Description and Fitment

This suspension strut and coil spring assembly features a compressed length of 15.41 inches and an extended length of 22.925 inches, with a travel length of 7.515 inches. The body length measures 14.31 inches, matching OEM specifications for the covered model years. Designed for economy-grade applications, this assembly is suitable for drivers seeking a reliable replacement without premium pricing. It is compatible with Toyota Highlander models from 2004 through 2007, as well as Lexus RX330 and RX350 vehicles within the same year range. The part number 15903 ensures accurate identification and fitment for these vehicles.

Common Applications and Problem Resolution

  • Replacement of worn or damaged front suspension struts on Toyota Highlander and Lexus RX models
  • Restoring proper ride height and suspension travel
  • Eliminating noise and vibration caused by faulty strut components
  • Improving vehicle handling and stability after suspension wear
  • Addressing uneven tire wear related to suspension issues

Installation Notes and Tips

This Unity strut assembly comes fully pre-assembled, including the coil spring and top mount, which allows for plug-and-play installation. This reduces the need for spring compressors and specialized tools, enhancing safety and efficiency during installation. Ensure vehicle compatibility by verifying the make, model, and year before installation. Follow manufacturer torque specifications for mounting hardware and perform a wheel alignment after installation to maintain proper suspension geometry.

Quality Assurance and Warranty

The Unity suspension strut assembly (part number 15903) is manufactured to meet economy-grade standards, providing a balance between cost and performance. While specific warranty details are not provided, Unity products typically adhere to industry quality controls to ensure durability and fitment. It is recommended to consult the product packaging or Unity’s official documentation for warranty information.

BrandUnity
Part Number15903
PositionPre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation, Rear Left
Body Length14.31
Compressed Length15.41
Extended Length22.925
Max Year Covered2007
Min Year Covered2004
Most Popular Make / ModelToyota Highlander
Most Popular Year2004
Product GradeEconomy
Special NoteFully Assembled; Ready to Install
Total Part VIO356624
Travel Length7.515

This part fits 10 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2009LexusRX350AWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2008LexusRX350AWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2007LexusRX350AWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2007ToyotaHighlanderAWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2006LexusRX330AWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2006ToyotaHighlanderAWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2005LexusRX330AWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2005ToyotaHighlanderAWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2004LexusRX330AWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation
2004ToyotaHighlanderAWDRear LeftExcludes Front Wheel Drive and Vehicles With Air Suspension; Pre-assembled Complete Strut Assembly including Coil Spring, Top Mount and All Components - Ready to Install - Plug and Play Installation

* 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:

182216480104804048010480504802048040480204805048080480304808048070480904803048090480704851049445485104956548510A922048510A93604852049555485204973548520A922048530494154853049555485304977548530A920048530A921048540492454854049295485404940548540A915048540A9160

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