Delphi TBR4385 Rack and Pinion Bellows - Left or Right

Rack and Pinion Bellows Overview

This Delphi rack and pinion bellows is built for steering systems that need a precise OE-style seal and protective boot. It is engineered for direct application coverage on select Toyota and Lexus models, including the Toyota 4Runner, Lexus GX460, and Toyota FJ Cruiser.

Key Features

• OE-focused design for steering gear protection and fit consistency
• Extensive dimensional and material analysis for OE and aftermarket compatibility
• Tested across extreme temperature ranges from below -40 C to over 120 C
• Exposed to 720 hours of salt spray testing for corrosion resistance validation
• Fits select Toyota 4Runner, Lexus GX460, and Toyota FJ Cruiser applications
• Delphi OE expertise applied to the aftermarket steering portfolio

Detailed Description

Delphi TBR4385 is a rack and pinion bellows designed around OE engineering standards for steering system protection and dimensional accuracy. Delphi applies its OE safety technology and aftermarket steering expertise to this part, using material and dimensional analysis to support proper compatibility with the original application. This part cross-references Beck/Arnley 103-3070 and 45535-69015 for the same application.

Compatible With 2010-2024 Toyota 4Runner, right; 2010-2023 Lexus GX460, right; and 2009-2014 Toyota FJ Cruiser, left. The Delphi TBR4385 is a fitment-specific steering bellows for vehicles that require a precise OE-style replacement in the steering gear assembly.

What It Is Used For

• Protecting steering components from dirt and road debris
• Maintaining the bellows seal around the rack and pinion assembly
• Replacing a worn, cracked, or damaged steering boot
• Restoring proper steering gear protection after age-related deterioration

Installation Notes and Tips

Verify the vehicle application by year, make, model, and position before installation. This part is listed for left and right positions in the attributes, but the fitment table should be used to confirm the exact side for your vehicle. Always inspect adjacent steering components for wear before completing the repair.

Quality Assurance

Delphi subjects this steering component to extreme temperature testing and extended salt spray exposure, along with dimensional and material analysis to support OE-level fit and performance expectations.