Walker
Quiet-Flow SS

Walker 53371 Exhaust Muffler Assembly

Brand Walker 53371
Body Diameter 11
Body Height 5.5
Body Length 19
Body Material Stainless Steel
Body Width 11
Friction Material Thickness Aluminized
Grade Type Regular
Inlet 1 Outside Diameter 1.9
Inlet 1 Type 2 Bolt Welded Flange
Inlet Configuration Offset
Inlet Outside Diameter 1.9
Inlet Type 2 Bolt Welded Flange
Muffler Material Stainless Steel
Muffler Shape Oval
Muffler Type Combination
Outlet 1 Outside Diameter 2
Outlet 1 Type Tip
Outlet Configuration Offset
Outlet Type Tip
Overall Length 31.25
Shape Oval
Product line Quiet-Flow SS
Fits Toyota and Lexus · 13 vehicles

OE-style replacement. Direct-fit muffler assembly installs without modifications.

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

Quiet-Flow SS line. Walker’s muffler assemblies combine fit and durability.

Cross-references Anchor 2404, BRExhaust 228-011 and 228-085 for the same application. See all 4.

$178.72Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $178.72
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Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS Part Number 53371 is a direct-fit exhaust muffler assembly built for select Toyota Avalon and Lexus ES300 applications. It combines stainless-steel muffler construction with an OE-style replacement layout to support longer service life than typical aluminized mufflers.

The Quiet-Flow SS line focuses on direct replacement fitment and stainless-steel durability for domestic and foreign vehicles. For drivers replacing a worn factory muffler on a 2000-2004 Toyota Avalon or 1999-2001 Lexus ES300, this assembly provides a factory-style solution with the correct inlet and outlet configuration.

Key Features

  • Walker Quiet-Flow SS exhaust muffler assembly, Part Number 53371
  • Stainless steel muffler and body construction
  • Direct-fit OE-style replacement for select Toyota Avalon and Lexus ES300 models
  • Oval muffler shape with offset inlet and offset outlet configuration
  • 2-bolt welded flange inlet for factory-style connection
  • Outlet tip design with 2-inch outlet outside diameter
  • Overall length: 31.25 inches
  • Body dimensions: 11 inches wide, 5.5 inches high, 19 inches long

Detailed Description

Walker 53371 is an exhaust muffler assembly engineered for vehicles that need a direct replacement with OE-style fitment. The stainless-steel muffler material and body material help distinguish this Quiet-Flow SS unit from standard aluminized mufflers, while the oval shape and offset inlet/outlet layout match the factory-style exhaust routing used on the listed applications. This part cross-references Anchor 2404 and BRExhaust 228-011 for the same application.

Compatible With 2000-2004 Toyota Avalon, N/A and 1999-2001 Lexus ES300, N/A. It is a practical replacement choice when the original muffler is corroded, noisy, or no longer sealing properly. Walker Quiet-Flow SS Part Number 53371 is also a relevant search match for buyers looking for a Toyota Avalon muffler assembly or Lexus ES300 exhaust muffler replacement.

Common Problems This Part Can Address

  • Exhaust noise caused by a damaged or rusted muffler
  • Corrosion in the original muffler body or seams
  • Restricted exhaust flow from internal muffler deterioration
  • Fitment issues from a previous non-OE-style replacement
  • Leaks at the factory-style flange connection

Installation Notes and Tips

Verify the inlet outside diameter, flange style, and overall muffler dimensions before installation. This assembly uses a 2-bolt welded flange inlet and an offset inlet/outlet configuration, so matching the original exhaust routing is important for proper alignment. Confirm vehicle application by year, make, and model before ordering, especially for 2000-2004 Toyota Avalon and 1999-2001 Lexus ES300 applications.

Quality Assurance

Walker Quiet-Flow SS muffler assemblies are positioned as stainless-steel, direct-fit OE-style replacements for domestic and foreign vehicles. The stainless-steel construction is intended to provide longer life than typical aluminized mufflers, while maintaining factory-style fitment for the listed applications.

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2004ToyotaAvalonXL3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2004ToyotaAvalonXLS3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2003ToyotaAvalonXL3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2003ToyotaAvalonXLS3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2002ToyotaAvalonXL3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2002ToyotaAvalonXLS3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2001LexusES300—3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2001ToyotaAvalonXL3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2001ToyotaAvalonXLS3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2000LexusES300—3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2000ToyotaAvalonXL3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
2000ToyotaAvalonXLS3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
1999LexusES300—3.0LV6N/APremium; Limited Lifetime Warranty; Quiet-Flow SS
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2404BRExhaust — 228-011228-0852485