Atlantic Automotive Enterprises 4639N Rack and Pinion Assembly

Manual Rack and Pinion for Toyota Sienna

Atlantic Automotive Enterprises 4639N is a new manual steering rack and pinion complete unit for select Toyota Sienna applications. It includes inner tie rods and is built as a standard replacement for vehicles using an electronic power steering column with a manual rack.

Fits 2011-2020 Toyota Sienna, N/A, with electronic PS and manual rack, without outer tie rod ends. This part number, 4639N, is a direct-fit steering replacement for owners addressing steering play, noise, or rack wear on Toyota Sienna models.

Key Features

• New manual rack and pinion assembly
• Includes inner tie rods
• Standard replacement grade
• Manual type steering rack
• Inspected and tested in the USA before shipment
• Compatible with 2011-2020 Toyota Sienna applications listed below

Product Details

Atlantic Automotive Enterprises New Rack and Pinion Complete Unit line is focused on replacement steering components built for OE-style performance and reliability. Part number 4639N is designed for manual steering systems used with an electric power steering column, a common setup in import vehicles and some domestic platforms. Each unit is checked and tested in the USA before it leaves the facility to help confirm proper operation.

This rack and pinion assembly cross-references Toyota 4551008020 for the same application. Use 4639N when replacing a worn manual rack on Toyota Sienna models that match the listed configuration.

Common Problems This Part Can Address

• Excessive steering play or looseness
• Internal rack wear causing inconsistent steering response
• Noise from a worn steering gear assembly
• Steering effort changes related to rack deterioration
• Failure of the original manual rack and pinion unit

Installation Notes

Verify the vehicle uses the listed electronic power steering column and manual rack configuration before installation. Outer tie rod ends are not included, and mounting hardware is not included. Always confirm alignment, inspect related steering components, and follow factory service procedures after replacement.

Quality Assurance

Each Atlantic Automotive Enterprises rack and pinion unit is inspected and tested in the USA prior to shipment to support OE-level fit and function for the specified Toyota Sienna applications.