AP Exhaust 7579 Exhaust Muffler Assembly

AP Exhaust 7579 Muffler Assembly

AP Exhaust 7579 is an OE replacement exhaust muffler assembly for select Ford Fusion applications. Built as a welded assembly in the Challenge series, it is designed for direct replacement service on vehicles that use a transverse, baffled oval muffler layout.

For Ford Fusion owners needing a replacement muffler assembly for 2013-2020 models, this AP Exhaust part number 7579 follows the original welded-system format used on the vehicle. It is a practical choice for restoring exhaust function on Fusion models with California or Federal emissions configurations where listed.

• OE replacement exhaust muffler assembly
• AP Exhaust Challenge series welded assembly
• Aluminized steel body for exhaust system service
• Transverse muffler configuration with oval shape
• Body-side inlet and right-offset outlet layout
• 2.25 in. inlet diameter and 2.00 in. outlet diameter
• Fits Ford Fusion applications with welded OE exhaust design

Product Details

This muffler assembly uses a baffled internal design and a bare aluminized steel construction. The body measures 30 inches long, 11 inches wide, and 5.50 inches high, with an overall length of 47 inches. It features one pipe inlet, one pipe outlet, and a 2-bracket mount type for the specified welded assembly applications. AP Exhaust 7579 cross-references Ford DS7Z-5230-H for the same application.

Vehicle Fitment

• Fits 2020 Ford Fusion, N/A, California Emissions; Welded Assembly
• Fits 2013-2019 Ford Fusion, N/A, Welded Assembly; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; Calif. Emissions
• Fits 2013-2016 Ford Fusion, N/A, Welded Assembly; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; Federal Emissions
• Fits 2013-2016 Ford Fusion, N/A, Welded Assembly; OE system was a welded assembly, recommend replacing all noted parts [1].

Common Replacement Reasons

• Rust or corrosion in the muffler body
• Exhaust leaks at a welded assembly section
• Excessive exhaust noise from a damaged baffled muffler
• Fitment issues when replacing an OE welded exhaust section
• Need for a direct replacement on Ford Fusion exhaust systems

Installation Notes

Verify inlet and outlet diameter, body dimensions, and welded-assembly routing before installation. This part is specified for OE replacement use on Ford Fusion models with the listed emissions and welded-system configurations. Confirm the vehicle’s exhaust layout matches the body-side inlet and right-offset outlet arrangement before service.

Quality Assurance

AP Exhaust’s Challenge line is built for replacement exhaust service with application-specific fitment and welded-system compatibility where listed. Use the vehicle’s emissions configuration and original exhaust layout to confirm correct selection before installation.