Walker 53823 Exhaust Muffler Assembly - Left

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS muffler assembly Part Number 53823 is a direct-fit OE-style exhaust replacement for select Nissan Altima applications. Built with stainless steel body and muffler materials, it is made for drivers seeking a longer-life muffler solution for the left side of the vehicle.

Compatible with 2009-2018 Nissan Altima, left, this exhaust muffler assembly uses an offset inlet and offset outlet layout with a 2-inch inlet and 2.25-inch outlet tip connection. The oval muffler shape and 25-inch overall length support OE-style fitment for the listed applications.

Key Features

• Walker Quiet-Flow SS product line for OE-style exhaust replacement
• Stainless steel muffler and body construction
• Oval muffler shape with offset inlet and outlet configuration
• 2-inch inlet inside diameter and 2.25-inch outlet outside diameter
• Direct-fit design for select Nissan Altima left-side applications
• Part Number 53823 for application-specific lookup

Detailed Description

Walker Quiet-Flow SS Part Number 53823 is an exhaust muffler assembly engineered for select Nissan Altima models. The Quiet-Flow SS line focuses on stainless-steel construction with a direct-fit OE-style replacement format, giving this muffler assembly a fitment profile that matches the listed left-side applications. The oval body measures 11 inches wide, 11 inches in body diameter, 12 inches in body length, and 5.5 inches in body height, with a 25-inch overall length.

This part cross-references AP Exhaust 30010 and BRExhaust 145-241 for the same application. Search terms such as Nissan Altima left muffler assembly, 2009-2018 Nissan Altima exhaust muffler replacement, and Walker 53823 muffler assembly align with this part’s confirmed fitment.

What It Helps Address

• Rust-related muffler replacement needs on the listed Nissan Altima applications
• Exhaust noise caused by a worn or damaged muffler assembly
• Fitment issues when replacing a left-side OE-style muffler
• Corrosion concerns in applications that benefit from stainless steel construction
• Exhaust system repair needs where the original muffler assembly is no longer serviceable

Installation Notes and Tips

Fits 2010-2018 Nissan Altima, left. Fits 2009-2012 Nissan Altima, left, from 02/2009. Fits 2009 Nissan Altima, left, after 01/2009. If the vehicle uses a welded assembly, replace all required related parts during service to maintain proper exhaust alignment and sealing. Verify inlet and outlet orientation, overall length, and left-side placement before installation.

Quality Assurance

Walker Quiet-Flow SS muffler assemblies are built as direct-fit OE-style replacements using stainless-steel construction for longer service life than typical aluminized mufflers. Part Number 53823 is backed by a limited lifetime warranty for the listed applications.