Walker 55311 Exhaust Muffler Assembly - Rear

Walker Quiet-Flow Muffler Assembly for Sequoia

Walker Quiet-Flow 55311 is an OE-style exhaust muffler assembly built for direct-fit replacement on select Toyota Sequoia rear applications. It combines a round steel body with aluminized finish and a center inlet/center outlet layout to match the original exhaust routing and sound profile.

The Quiet-Flow line focuses on precision fit, steady exhaust flow, and OE-style sound control. For 2001-2007 Toyota Sequoia rear fitment, this muffler assembly is a practical choice when replacing a worn or noisy rear muffler on the Toyota Sequoia.

Key Features

• Part number: 55311
• Walker Quiet-Flow product line for OE-style replacement
• Direct-fit exhaust muffler assembly for rear installation
• Round steel muffler body with aluminized finish
• Center inlet and center outlet configuration
• Inlet outside diameter: 3.125 in.; inlet inside diameter: 2.875 in.
• Outlet outside diameter: 2.5 in.
• Overall length: 58 in.
• Body dimensions: 6 in. diameter, 6 in. height, 13 in. length

Product Details

Walker Quiet-Flow 55311 is engineered as a direct replacement muffler assembly for the rear of 2001-2007 Toyota Sequoia models. The spherical flare inlet and pipe connection outlet support OE-style exhaust alignment, while the steel construction and aluminized finish provide a serviceable replacement for factory-style exhaust repair. This part cross-references AP Exhaust 54173 and BRExhaust 286-871 for the same application.

What It Helps Address

• Exhaust noise from a damaged or rusted rear muffler
• Restricted exhaust flow caused by internal muffler deterioration
• Fitment issues from a mismatched replacement muffler
• Corrosion-related failure in the original exhaust assembly
• Restoring factory-style exhaust routing on a Toyota Sequoia

Installation Notes and Tips

Compatible With 2001-2007 Toyota Sequoia, rear. Verify inlet and outlet diameters, center configuration, and overall length against the existing exhaust before installation. Confirm the spherical flare inlet and pipe connection outlet match the vehicle’s exhaust connection points on the Toyota Sequoia. Professional installation is recommended for proper alignment and sealing.

Quality Assurance

Walker Quiet-Flow muffler assemblies are positioned as direct-fit OE-style replacements with coverage for domestic and foreign vehicles. The Quiet-Flow line is built around precision fit, consistent flow characteristics, and OE-style sound control for replacement applications.