Walker 53111 Exhaust Muffler Assembly

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS 53111 is a direct-fit exhaust muffler assembly for select Nissan Pathfinder and INFINITI QX4 applications. It combines stainless-steel muffler construction with an OE-style replacement layout to support longer service life than typical aluminized mufflers.

Built for 1996-2000 Nissan Pathfinder and 1997-2000 INFINITI QX4 models, this muffler assembly uses a 2-inch pipe connection inlet, offset inlet configuration, and a 2-bolt welded flange outlet for a factory-style exhaust connection.

Key Features

• Walker Quiet-Flow SS product line for OE-style exhaust replacement
• Stainless steel muffler and body construction
• Oval muffler shape with 11-inch body diameter
• Offset inlet and offset outlet configuration
• 2-inch inlet diameter with 2-inch outlet diameter
• 2-bolt welded flange outlet for secure exhaust attachment
• Direct-fit muffler assembly for select Nissan Pathfinder and INFINITI QX4 vehicles
• Part number 53111 for application matching and catalog lookup

Detailed Description

Walker Quiet-Flow SS 53111 is an exhaust muffler assembly engineered as a direct replacement for select Nissan Pathfinder and INFINITI QX4 vehicles. The Quiet-Flow SS line focuses on stainless-steel construction in a broad-market OE-style format, giving buyers a replacement muffler assembly that matches the original exhaust layout more closely than universal-fit alternatives. The oval body measures 18 inches long, 11 inches wide, and 5.5 inches high, with an overall length of 28.25 inches.

This muffler assembly uses dual 2-inch pipe connection inlets with an offset inlet configuration and a single 2-inch outlet with a 2-bolt welded flange. That layout supports factory-style exhaust routing on 1996-2000 Nissan Pathfinder and 1997-2000 INFINITI QX4 models. This part cross-references Walker Exhaust 53109 and 53110 for the same application.

What It Helps Address

• Rust-related muffler replacement on aging Pathfinder and QX4 exhaust systems
• Exhaust leaks at the muffler body or flange connection
• Noise increase from a worn or damaged muffler assembly
• Fitment issues caused by non-OE exhaust modifications
• Replacement needs for welded exhaust assemblies on select vehicles

Installation Notes

Verify the inlet and outlet configuration before installation, especially on welded exhaust assemblies. If the vehicle uses a welded assembly, replace all required related parts during service to restore proper exhaust alignment and sealing. Confirm compatibility with your exact year, make, and model before ordering.

Quality Assurance

Walker Quiet-Flow SS muffler assemblies are built with stainless-steel construction and OE-style fitment for long-term exhaust service on domestic and foreign vehicles. Part number 53111 is listed for 1996-2000 Nissan Pathfinder and 1997-2000 INFINITI QX4 applications.