Walker
Quiet-Flow SS

Walker 53261 Exhaust Muffler Assembly

Brand Walker 53261
Inlet Outside Diameter 2
Finish Aluminized
Body Diameter 11
Inlet Type Pipe connection
Outlet Type Pipe connection
Body Height 5.5
Body Length 17
Muffler Material Stainless steel
Muffler Shape Oval
Overall Length 29.25
Body Material Stainless steel
Body Width 11
Grade Type Regular
Inlet 1 Outside Diameter 2
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Quantity 1
Muffler Type Combination
Outlet 1 Outside Diameter 2
Outlet 1 Type Pipe connection
Outlet Configuration Offset
Outlet Quantity 1
Shape Oval
Product line Quiet-Flow SS
Fits Nissan · 4 vehicles

Direct-fit OE-style replacement. Installs like the original and needs no modifications.

Stainless steel construction. Helps deliver longer life than typical aluminized mufflers.

Oval combination design. Built as a muffler assembly with pipe connections.

Cross-references BRExhaust 145-761 and OSC 2299 for the same application. See all 2.

$166.31Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $166.31
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS 53261 is a direct-fit exhaust muffler assembly built for the 1998-2001 Nissan Altima. It combines stainless-steel construction with an OE-style pipe connection layout to replace the factory muffler with a serviceable, vehicle-specific part.

The Quiet-Flow SS line focuses on longer service life than typical aluminized mufflers, while maintaining a factory-style fit for domestic and foreign applications. For Nissan Altima owners searching for a replacement exhaust muffler assembly, part number 53261 matches the original-style offset inlet and outlet configuration.

Key Features

  • Direct-fit exhaust muffler assembly for 1998-2001 Nissan Altima
  • Stainless-steel muffler body and muffler material for improved corrosion resistance
  • Oval muffler shape with 11-inch body diameter and 29.25-inch overall length
  • Offset inlet and outlet configuration with 2-inch pipe connections
  • OE-style replacement from Walker Quiet-Flow SS
  • Part number 53261 for catalog and fitment reference

Product Details

Walker Quiet-Flow SS 53261 is an exhaust muffler assembly with a combination muffler design, oval body, and pipe connection inlet and outlet. The stainless-steel body measures 17 inches long, 11 inches wide, and 5.5 inches high, supporting a factory-style replacement for the Nissan Altima exhaust system. This part cross-references BRExhaust 145-761 and OSC 2299 for the same application.

For buyers comparing Nissan Altima muffler replacement options, 53261 provides a direct-fit solution that follows the original offset inlet and outlet layout. It is a practical choice when replacing a worn, noisy, or corroded rear exhaust muffler on 1998-2001 Nissan Altima models.

What This Muffler Helps Address

  • Exhaust noise from a damaged or rusted muffler
  • Corrosion-related muffler failure on the Nissan Altima exhaust system
  • Factory exhaust fitment issues caused by a non-OE replacement part
  • Leaks at the muffler connection points
  • Reduced exhaust system service life from a typical aluminized muffler

Installation Notes

Fits 1998-2001 Nissan Altima, N/A. Verify inlet and outlet diameter, offset configuration, and overall length against the original muffler before installation. Because this is a pipe-connection muffler assembly, proper alignment of the exhaust hangers and adjoining pipes is important for a secure fit.

Quality Assurance

Walker Quiet-Flow SS is positioned as a stainless-steel OE-style replacement line for domestic and foreign vehicles. Part number 53261 is built to match the specified application for 1998-2001 Nissan Altima models and is supported by the Quiet-Flow SS product line’s focus on longer-lasting stainless-steel construction.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2001NissanAltima2.4LL4Premium; Limited Lifetime Warranty; Quiet-Flow SS
2000NissanAltima2.4LL4Premium; Limited Lifetime Warranty; Quiet-Flow SS
1999NissanAltima2.4LL4Premium; Limited Lifetime Warranty; Quiet-Flow SS
1998NissanAltima2.4LL4Premium; Limited Lifetime Warranty; Quiet-Flow SS
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BRExhaust — 145-761OSC — 2299