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Walker 55504 Exhaust Y Pipe - RearOE Quality 60-Day Returns
Part #: 55504

Walker 55504 Exhaust Y Pipe - Rear

Rear
23 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Lincoln, and Mercury, Fusion, Milan, MKZ, and Zephyr
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Walker 55504 Exhaust Y Pipe for Ford Fusion, Lincoln MKZ, Mercury Milan

Walker 55504 is a specific-fit exhaust Y pipe built from aluminized steel for corrosion resistance and long-term durability. It is manufactured with precision benders and fixture-checked for fitment to support a straightforward installation on confirmed rear applications.

Key Features

  • Aluminized steel construction for durable exhaust service
  • Specific-fit design for confirmed vehicle applications
  • 2.25-inch inlet inside diameter
  • Dual 2-inch outlet outside diameter
  • 58-inch overall length
  • Pipe connection inlet and outlet design
  • Regular grade replacement exhaust pipe

Product Details

This Walker exhaust Y pipe, part number 55504, is made for rear exhaust routing on select Ford, Lincoln, and Mercury vehicles. It is a direct-fit replacement for 2006-2012 Ford Fusion, 2007-2012 Lincoln MKZ, 2006-2011 Mercury Milan, and 2006 Lincoln Zephyr rear applications. This part cross-references AP Exhaust 78266 and Walker Exhaust 53686 for the same application.

Built from steel with an aluminized finish, Walker 55504 is shaped to match the original exhaust path and connection points. The 2.25-inch inlet and dual 2-inch outlets support the factory-style exhaust split used on these vehicles, making it a practical choice when replacing a worn or damaged rear Y pipe on a Ford Fusion, Lincoln MKZ, or Mercury Milan.

Common Replacement Reasons

  • Rust or corrosion in the rear exhaust pipe
  • Cracks or leaks at the Y-pipe section
  • Restricted exhaust flow from a damaged pipe
  • Failed emissions or exhaust noise caused by pipe deterioration
  • Need for a direct replacement during rear exhaust repair

Installation Notes

Verify vehicle year, make, model, and rear position before installation. If the original assembly is welded, replace all required related parts during service to complete the repair correctly. Confirm inlet and outlet dimensions against the existing exhaust system prior to installation.

Quality Assurance

Walker manufactures this pipe with precision bending and fixture checking to help ensure accurate fitment. The aluminized steel construction adds durability for everyday exhaust service on confirmed applications.

BrandWalker
Part Number55504
Outlet Outside Diameter2
Length58
Grade TypeRegular
Inlet Inside Diameter2.25
FinishAluminized
Inlet Quantity1
Inlet TypePipe connection
MaterialSteel
Outlet Quantity2
Outlet TypePipe connection
Universal Or Specific FitSpecific fit

This part fits 23 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersPositionNotes
2012FordFusionFWD3.0LV6RearIf welded assembly, replace all required parts
2012FordFusionFWD3.5LV6RearIf welded assembly, replace all required parts
2012LincolnMKZFWD3.5LV6Rear
2011FordFusionFWD3.0LV6RearIf welded assembly, replace all required parts
2011FordFusionFWD3.5LV6RearIf welded assembly, replace all required parts
2011LincolnMKZFWD3.5LV6Rear
2011MercuryMilanFWD3.0LV6RearIf welded assembly, replace all required parts
2010FordFusionFWD3.0LV6RearIf welded assembly, replace all required parts
2010FordFusionFWD3.5LV6RearIf welded assembly, replace all required parts
2010LincolnMKZFWD3.5LV6Rear
2010MercuryMilanFWD3.0LV6RearIf welded assembly, replace all required parts
2009FordFusionFWD3.0LV6RearIf welded assembly, replace all required parts
2009LincolnMKZFWD3.5LV6Rear
2009MercuryMilanFWD3.0LV6RearIf welded assembly, replace all required parts
2008FordFusion3.0LV6RearIf welded assembly, replace all required parts
2008LincolnMKZFWD3.5LV6Rear
2008MercuryMilanFWD3.0LV6RearIf welded assembly, replace all required parts
2007FordFusionFWD3.0LV6RearIf welded assembly, replace all required parts
2007LincolnMKZFWD3.5LV6Rear
2007MercuryMilanFWD3.0LV6RearIf welded assembly, replace all required parts
2006FordFusion3.0LV6RearIf welded assembly, replace all required parts
2006LincolnZephyrFWD3.0LV6RearIf welded assembly, replace all required parts
2006MercuryMilan3.0LV6RearIf welded assembly, replace all required parts

* 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:

5368678266

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

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