Unity 15907 Suspension Strut and Coil Spring Assembly - Rear Left

Rear Left Strut Assembly for RX300 and Highlander

Unity 15907 is a pre-assembled suspension strut and coil spring assembly for the rear left position. It is built for direct replacement on select Lexus RX300 and Toyota Highlander applications, with plug and play installation and a fully assembled design that reduces setup time.

For drivers searching for a rear left strut assembly for 1999-2003 Lexus RX300 or 2001-2003 Toyota Highlander, this Unity unit provides an OE-style replacement built to OEM specifications. The Unity Automotive product line focuses on suspension assemblies engineered for consistent fitment and dependable service in everyday use.

Key Features

• Part number 15907
• Pre-assembled complete strut assembly with coil spring and top mount
• Ready to install, fully assembled design
• Rear left position
• Compatible with 1999-2003 Lexus RX300, rear left, excluding front wheel drive
• Compatible with 2001-2003 Toyota Highlander, rear left, excluding front wheel drive
• Built to OEM specifications
• Compressed length: 15.26 in; travel length: 8.04 in; extended length: 23.3 in; body length: 14.6 in

Product Details

Unity 15907 is a suspension strut and coil spring assembly designed for the rear left side of select Lexus RX300 and Toyota Highlander models. The assembly format helps streamline replacement by combining the strut, coil spring, and top mount into one unit. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

With coverage for 1999-2003 Lexus RX300 and 2001-2003 Toyota Highlander, this part is a direct-fit option for owners addressing rear suspension wear on these platforms. The part number 15907 is also supported by multiple interchange references for OE-style replacement matching.

Common Repair Uses

• Rear suspension noise from a worn strut assembly
• Uneven ride height or sagging at the rear left corner
• Excessive bouncing after bumps or road impacts
• Reduced ride control from a fatigued coil spring and strut unit
• Replacement of a leaking or worn rear left suspension strut

Installation Notes

Verify vehicle configuration before ordering. This assembly fits rear left applications only and excludes front wheel drive versions of the listed vehicles. Confirm year, make, model, and position against the vehicle before installation. Because the unit is fully assembled, it is intended to simplify replacement compared with rebuilding individual suspension components.

Quality Assurance

Unity Automotive has more than 40 years of aftermarket suspension manufacturing experience and builds its assemblies to OEM specifications. The brand’s suspension catalog is developed around consistent fitment, product coverage, and customer support for replacement applications.