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Cardboard box with Unity rear conversion kit label for Lexus RX330 RX350 RX400h AWD

Unity

Unity Rear Conversion Kit 31-516200-AWD for Lexus RX330 RX350 RX400h AWD

SKU CH-7AXD-RHHV0

Converts air suspension to passive coil struts on AWD Lexus RX models from 2004 to 2007

  • Preassembled struts eliminate specialty tools for hassle-free repair
  • Converts air ride to reliable passive steel spring suspension
  • Fits AWD Lexus RX330 2004 to 2006 models
  • Fits AWD Lexus RX350 2007 and RX400h 2006 to 2007
  • Backed by Unity 50 years aftermarket suspension expertise

Rear Air-to-Coil Conversion Kit

This Unity 31-516200-AWD kit converts the rear air suspension on all-wheel-drive Lexus RX models to a passive coil-spring setup. It fits 2004-2006 RX330, 2007 RX350 and 2006-2007 RX400h vehicles. The preassembled strut assemblies arrive with top mount, bearing plate, bumper, insulators and coil spring already fitted. The design removes the need for special spring-compressor tools during installation.

AWD-Only Application Limit

The kit is engineered exclusively for all-wheel-drive variants of the listed Lexus models. It will not fit front-wheel-drive versions or any other make. Each assembly replicates original-equipment strut geometry so ride height and alignment specifications remain unchanged after conversion. No air lines, compressors or electronic height sensors are retained once the kit is installed.

Verify Vehicle Configuration First

Confirm the vehicle is an all-wheel-drive RX330, RX350 or RX400h built between 2004 and 2007 before ordering. Check that the rear suspension currently uses air springs rather than conventional coils. Ensure the wheel hubs, brake lines and ABS wiring have sufficient length to accommodate the fixed strut length. Professional alignment is required after the conversion is completed.

Highlights

  • Preassembled struts eliminate specialty tools for hassle-free repair
  • Converts air ride to reliable passive steel spring suspension
  • Fits AWD Lexus RX330 2004 to 2006 models
  • Fits AWD Lexus RX350 2007 and RX400h 2006 to 2007
  • Backed by Unity 50 years aftermarket suspension expertise

Specifications

BrandUNITY

Questions about this item

Which Unity rear conversion kit fits my AWD Lexus RX?

Kit 31-516200-AWD fits 2004-2006 RX330, 2007 RX350 and 2006-2007 RX400h models with all-wheel drive.

What does the pre-assembled strut assembly include for my repair?

Each unit arrives with OE-style strut, top mount, bearing plate, bumper, insulators and coil spring so no specialty tools are needed.

How does the Elite Suspension Line conversion change the rear suspension?

It replaces the factory air-ride system with passive steel-spring struts for a more reliable, maintenance-free setup.

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