Walker 47817 Exhaust Muffler Assembly

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS 47817 is a direct-fit exhaust muffler assembly for select Toyota Sienna models. It combines stainless-steel muffler construction with an OE-style replacement layout to support longer service life than typical aluminized mufflers.

Built for 2004-2020 Toyota Sienna applications, this muffler assembly uses a 2.25-inch inlet with a 2-bolt welded flange and an offset inlet configuration. The oval body measures 9 inches wide, 9 inches in diameter, 7 inches high, and 20 inches long, with an overall length of 81.5 inches. The outlet is a 2.5-inch tip with an offset outlet configuration.

Quiet-Flow SS Product Line

Walker Quiet-Flow SS is the stainless-steel line in Walker’s muffler family. It is built as a direct-fit OE-style replacement for domestic and foreign vehicles, giving buyers a factory-style service part with stainless-steel muffler and body materials for added durability.

Key Features

• Direct-fit exhaust muffler assembly for select Toyota Sienna models
• Stainless-steel muffler material and stainless-steel body material
• Oval muffler shape with aluminized finish
• 2.25-inch inlet outside diameter with 2-bolt welded flange
• Offset inlet and offset outlet configuration
• 2.5-inch outlet tip
• Walker Quiet-Flow SS line for OE-style replacement fitment

Detailed Description

Walker 47817 is an exhaust muffler assembly engineered for Toyota Sienna fitment across 2004-2020 model years. It is a practical replacement for worn or damaged factory mufflers when the goal is to restore exhaust routing and maintain an OE-style configuration. The stainless-steel construction helps provide longer life than standard aluminized mufflers, while the oval body and offset layout support factory-style packaging under the vehicle. This part cross-references BRExhaust 286-341 and Carlson 7882 for the same application.

Common Issues This Part May Address

• Rust-through or corrosion in the original muffler assembly
• Exhaust noise caused by a damaged muffler body
• Restricted exhaust flow from internal muffler deterioration
• Fitment problems after replacing a factory exhaust section
• Need for an OE-style replacement on a Toyota Sienna exhaust system

Installation Notes and Tips

Verify inlet diameter, flange style, and overall length against the existing exhaust before installation. This Walker Quiet-Flow SS muffler assembly is listed for Toyota Sienna applications with no position specified, so confirm the vehicle’s exhaust routing and mounting points before ordering. Professional installation is recommended to ensure proper alignment of the offset inlet and outlet and to maintain correct exhaust tip placement.

Quality Assurance

Walker positions Quiet-Flow SS as a stainless-steel, direct-fit OE-style replacement line for domestic and foreign vehicles. The stainless-steel construction is intended to provide longer service life than typical aluminized mufflers.

Fitment

• Fits 2017-2020 Toyota Sienna, N/A, Quiet-Flow SS
• Fits 2004-2016 Toyota Sienna, N/A, Premium; Limited Lifetime Warranty; Quiet-Flow SS