Introducing the Rear Differential with Viscous Coupling Assembly, a high-quality replacement engineered to fit seamlessly with the 2011-2020 Toyota Sienna equipped with all-wheel drive (AWD) capability. This assembly is designed to ensure optimal performance, enhanced traction, and a smooth driving experience for your Toyota Sienna. Crafted to meet or exceed OEM specifications, the Rear Differential with Viscous Coupling Assembly is the perfect solution for maintaining your vehicles all-wheel drive functionality. With compatibility covering the years 2011 to 2020, this assembly is tailored to meet the specific needs of various Sienna models. Featuring part numbers 4111045010 and 4111045011, this assembly is a direct fit, ensuring that it seamlessly integrates into your vehicles drivetrain system. Our commitment to precision engineering guarantees that every aspect of this assembly aligns with Toyotas stringent standards. Engineered for durability and reliability, this Rear Differential with Viscous Coupling Assembly is crafted from high-quality materials. Its rugged construction is designed to withstand the demands of everyday driving and challenging road conditions, providing consistent and dependable performance. Whether youre replacing a worn-out assembly or upgrading your Toyota Siennas AWD system, this assembly offers the perfect solution. The Viscous Coupling technology enhances traction, ensuring your vehicle maintains stability even in adverse weather conditions. Upgrade your 2011-2020 Toyota Sienna with the Rear Differential with Viscous Coupling Assembly and experience the improved performance and enhanced traction it delivers. Trust in the precision engineering and durability of this assembly to keep your AWD system functioning optimally. Ensure your Toyota Sienna continues to provide a safe and reliable driving experience by choosing the Rear Differential with Viscous Coupling Assembly. With our dedication to quality and compatibility, you can