Rear Differential Viscous Coupler Coupling for Toyota Sienna 11-18 41303-28013

Product Overview

This aftermarket replacement rear differential viscous coupler is intended for the listed 2011-2018 Toyota Sienna applications and cross-references part number 41303-28013. A viscous coupler transfers and regulates torque between driveline components in an all-wheel drive system through a fluid coupling, helping the system distribute drive force between the front and rear axles.

Key Features & Performance

• Transfers and regulates torque between driveline components in an all-wheel drive system
• Uses a fluid coupling to help distribute drive force between the front and rear axles
• Cross-references part number 41303-28013 for comparison during part identification
• Serves as a replacement when the corresponding coupler is worn, damaged, or no longer functioning correctly
• Intended for 2011-2018 Toyota Sienna applications

Fitment & Compatibility

• for 2011-2018 Toyota Sienna applications

Common Uses

• Replacing a rear differential viscous coupler that is worn, leaking, damaged, or malfunctioning
• Restoring normal operation of the all-wheel drive system after the original component has failed
• Servicing the rear differential and driveline system during routine maintenance or repair

Technical Specifications

• Product Type: Rear Differential Viscous Coupler
• Part Number: 41303-28013
• Vehicle Application(s): 2011-2018 Toyota Sienna

Frequently Asked Questions

Q: What does a viscous coupler do? A: A viscous coupler transfers and regulates torque between driveline components in an all-wheel drive system through a fluid coupling, helping distribute drive force between the front and rear axles.

Q: How should fitment be verified? A: Compare the complete existing part number and the full vehicle or equipment model designation against the numbers and applications shown here before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.