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Walker 55494 Exhaust Muffler Assembly
Overview of Walker Quiet-Flow SS Exhaust Muffler Assembly 55494
The Walker Quiet-Flow SS Exhaust Muffler Assembly 55494 is designed for reliable exhaust performance on Lexus and Toyota vehicles, including the 4Runner, GX460, and GX470 models. This muffler assembly features durable stainless steel construction and an aluminized finish to resist corrosion and extend service life.
- Compatible with Lexus 4Runner, GX460, GX470 and Toyota models
- Stainless steel muffler and body for enhanced durability
- Oval-shaped muffler body measuring 11" width by 5.5" height
- Inlet and outlet with 2.5" and 2.37" outside diameters respectively
- 2 bolt welded flange inlet and outlet for secure fitment
- Offset inlet and outlet configuration for precise installation
- Overall length of 52.25" with a 23" body length
- Aluminized finish for corrosion resistance
Detailed Product Description
The Walker Quiet-Flow SS 55494 exhaust muffler assembly is engineered to provide effective noise reduction and exhaust flow management for select Lexus and Toyota SUVs. Constructed from stainless steel, both the muffler body and internal components offer resistance to rust and wear, making it suitable for regular grade applications. The oval-shaped muffler body measures 11 inches in width and height of 5.5 inches, with a length of 23 inches, fitting within an overall assembly length of 52.25 inches. The inlet and outlet feature 2 bolt welded flanges with outside diameters of 2.5 inches and 2.37 inches respectively, arranged in an offset configuration to match factory exhaust layouts. The aluminized finish further protects the muffler from environmental elements, ensuring longevity in daily driving conditions.
About the Quiet-Flow SS Product Line
The Quiet-Flow SS line by Walker focuses on combining stainless steel materials with advanced muffler designs to deliver consistent exhaust performance and durability. This product line emphasizes corrosion resistance and noise reduction, making it suitable for vehicles requiring reliable exhaust components that maintain factory sound levels. The 55494 muffler assembly exemplifies these qualities with its stainless steel construction and precise fitment for Lexus and Toyota SUVs.
Common Applications and Problem Solving
- Replacement for worn or damaged mufflers on Lexus 4Runner, GX460, and GX470
- Reduces excessive exhaust noise caused by muffler failure
- Prevents exhaust leaks that can affect engine performance
- Addresses corrosion and rust issues in older muffler assemblies
- Restores proper exhaust flow for improved vehicle operation
Installation Notes and Tips
- Ensure compatibility with vehicle make and model before installation
- Use appropriate tools for 2 bolt welded flange connections
- Inspect exhaust system for additional wear or damage during replacement
- Verify offset inlet and outlet alignment for proper fit
- Professional installation is recommended for optimal results
Quality Assurance and Warranty
Walker manufactures the Quiet-Flow SS 55494 muffler assembly to meet industry standards for durability and performance. The stainless steel construction and aluminized finish contribute to corrosion resistance and long service life. While specific warranty details are not provided, Walker products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.
| Brand | Walker |
|---|---|
| Part Number | 55494 |
| Position | Quiet-Flow SS |
| Body Diameter | 11 |
| Body Height | 5.5 |
| Body Length | 23 |
| Body Material | Stainless Steel |
| Body Width | 11 |
| Friction Material Thickness | Aluminized |
| Grade Type | Regular |
| Inlet 1 Outside Diameter | 2.5 |
| Inlet 1 Type | 2 Bolt Welded Flange |
| Inlet Configuration | Offset |
| Inlet Outside Diameter | 2.5 |
| Inlet Type | 2 Bolt Welded Flange |
| Muffler Material | Stainless Steel |
| Muffler Shape | Oval |
| Muffler Type | Combination |
| Outlet 1 Outside Diameter | 2.37 |
| Outlet 1 Type | 2 Bolt Welded Flange |
| Outlet Configuration | Offset |
| Outlet Type | 2 Bolt Welded Flange |
| Overall Length | 52.25 |
| Shape | Oval |
This part fits 23 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2022 | Lexus | GX460 | 4.6L | V8 | N/A | Quiet-Flow SS |
| 2021 | Lexus | GX460 | 4.6L | V8 | N/A | Quiet-Flow SS |
| 2020 | Lexus | GX460 | 4.6L | V8 | N/A | Quiet-Flow SS |
| 2019 | Lexus | GX460 | 4.6L | V8 | N/A | Quiet-Flow SS |
| 2018 | Lexus | GX460 | 4.6L | V8 | N/A | Quiet-Flow SS |
| 2017 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2016 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2015 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2014 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2013 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2012 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2011 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2010 | Lexus | GX460 | 4.6L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2009 | Lexus | GX470 | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2009 | Toyota | 4Runner | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2008 | Lexus | GX470 | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2008 | Toyota | 4Runner | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2007 | Lexus | GX470 | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2007 | Toyota | 4Runner | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2006 | Lexus | GX470 | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2006 | Toyota | 4Runner | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2005 | Lexus | GX470 | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
| 2005 | Toyota | 4Runner | 4.7L | V8 | N/A | Premium; Limited Lifetime Warranty; Quiet-Flow SS |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.