Walker 18966 Exhaust Muffler - Rear

Walker SoundFX Direct Fit Muffler for Murano

Walker SoundFX Direct Fit muffler Part Number 18966 is a specific-fit exhaust muffler for the rear position on 2003-2007 Nissan Murano models. It is built with aluminized steel for improved service life versus low-carbon steel and is shaped to deliver a clean OE-style appearance with controlled exhaust sound.

Key Features

• Specific-fit exhaust muffler for 2003-2007 Nissan Murano, rear
• Walker SoundFX Direct Fit line for OE-style replacement applications
• Oval steel body with aluminized finish for corrosion resistance
• Reflection muffler design for balanced exhaust acoustics
• Mechanical interior joints and spun-locked heads for added durability
• 2-bolt welded flange inlet for direct-fit installation
• Dual 2-inch outlets with offset configuration

Product Details

Walker Part Number 18966 is engineered as a direct-fit exhaust muffler for the Nissan Murano rear exhaust location. The SoundFX Direct Fit product line focuses on replacement mufflers that match factory-style fitment while maintaining a refined exhaust note. This unit uses 100% aluminized steel construction, an oval body, and a reflection-style internal design to support long-term durability and consistent acoustics. The 2-bolt welded flange inlet and offset outlet layout help align with the original exhaust routing on the 2003-2007 Nissan Murano.

This part cross-references AP Exhaust 7551 for the same application.

Common Reasons to Replace

• Exhaust noise from a rusted or leaking muffler
• Corrosion on the muffler body or seams
• Reduced exhaust sealing at the flange connection
• Factory muffler damage from road debris or age
• Loss of OE-style exhaust tone on a Nissan Murano

Installation Notes

Fits 2003-2007 Nissan Murano, rear. Verify flange style, inlet offset, and dual outlet routing before installation. Confirm exhaust hanger alignment and inspect adjoining pipes, gaskets, and fasteners for wear so the replacement muffler seals correctly and sits in the intended position. Part Number 18966 is a direct-fit replacement for vehicles listed in the fitment data.

Quality Assurance

Walker SoundFX Direct Fit mufflers are built with aluminized steel, mechanical interior joints, and spun-locked heads to support durability in everyday exhaust service. The SoundFX Direct Fit line is positioned for quality appearance and controlled acoustics in OE-style replacement use.