HomeExhaust > MufflersWalker 54491 Exhaust Muffler Assembly - Rear
Part #: 54491

Walker 54491 Exhaust Muffler Assembly - Rear

Quiet-Flow SS, Rear
5 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Quiet-Flow SS, Rear
Fitment: Nissan, Murano
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Quiet-Flow SS Exhaust Muffler Assembly

The Walker Quiet-Flow SS Exhaust Muffler Assembly 54491 is designed specifically for Nissan Murano models, providing reliable exhaust flow and noise reduction. Constructed with durable stainless steel and an aluminized finish, this muffler assembly offers long-lasting performance and corrosion resistance.

  • Compatible with Nissan Murano vehicles
  • Part number 54491 for precise identification
  • Durable stainless steel body and muffler material
  • Oval-shaped muffler with 9-inch body diameter and 23-inch body length
  • Offset inlet and outlet configuration with dual pipe connections
  • Inlet outside diameter of 2 inches with 2-bolt welded flange and pipe connection types
  • Overall length of 43.625 inches for proper fitment
  • Aluminized finish for enhanced corrosion resistance

Detailed Product Description and Specifications

This Walker Quiet-Flow SS exhaust muffler assembly (part number 54491) features a combination muffler type with an oval shape, measuring 9 inches in diameter, 7 inches in height, and 23 inches in body length. The body and muffler are both constructed from stainless steel, ensuring durability and resistance to rust and corrosion. The aluminized finish further protects the muffler from environmental damage.

The muffler includes two inlets and two outlets, both with a 2-inch outside diameter. The inlet configuration is offset, with one inlet featuring a 2-bolt welded flange and the other a pipe connection. Both outlets use pipe connections with an offset configuration, facilitating straightforward installation and compatibility with the Nissan Murano exhaust system. The overall length of 43.625 inches ensures proper alignment within the vehicle's exhaust layout.

Walker Quiet-Flow SS Product Line Information

The Quiet-Flow SS line by Walker is engineered to provide a balance of sound reduction and exhaust flow efficiency. This product line utilizes stainless steel construction and aluminized finishes to enhance durability and corrosion resistance. The combination muffler design in this line is intended to reduce noise while maintaining optimal exhaust performance, making it suitable for Nissan Murano owners seeking a reliable replacement muffler assembly.

Common Applications and Problem Solving

  • Replacement for damaged or rusted mufflers on Nissan Murano models
  • Reduction of excessive exhaust noise and vibration
  • Restoration of proper exhaust flow to maintain engine performance
  • Prevention of exhaust leaks caused by worn or cracked muffler components
  • Improvement of vehicle emissions control by maintaining exhaust system integrity

Installation Notes and Tips

Installation of the Walker Quiet-Flow SS 54491 muffler assembly requires compatibility with Nissan Murano exhaust systems. Ensure the inlet and outlet pipe diameters match existing exhaust pipes (2 inches). The offset inlet and outlet configuration should be aligned carefully to avoid exhaust leaks. Use appropriate gaskets and hardware for the 2-bolt welded flange connection. Professional installation is recommended to ensure proper fitment and secure mounting.

Quality Assurance and Warranty

Walker manufactures the Quiet-Flow SS muffler assemblies with high-quality stainless steel materials and aluminized finishes to resist corrosion and extend service life. While specific warranty details for part number 54491 are not provided here, Walker products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandWalker
Part Number54491
PositionQuiet-Flow SS, Rear
Body Diameter9
Body Height7
Body Length23
Body MaterialStainless Steel
Body Width9
Friction Material ThicknessAluminized
Grade TypeRegular
Inlet 1 Outside Diameter2
Inlet 1 TypePipe Connection
Inlet 2 Type2 Bolt Welded Flange
Inlet ConfigurationOffset
Inlet Outside Diameter2
Inlet Type2 Bolt Welded Flange
Inlet TypePipe Connection
Muffler MaterialStainless Steel
Muffler ShapeOval
Muffler TypeCombination
Outlet 1 Outside Diameter2
Outlet 1 TypePipe Connection
Outlet 2 Outside Diameter2
Outlet 2 TypePipe Connection
Outlet ConfigurationOffset
Outlet TypePipe Connection
Overall Length43.625
ShapeOval

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2007NissanMurano3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2006NissanMurano3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2005NissanMurano3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2004NissanMurano3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2003NissanMurano3.5LV6RearPremium; 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:

145-1277551

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.