Walker 55504 Exhaust Y Pipe - Rear
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Walker

Walker 55504 Exhaust Y Pipe - Rear

Brand Walker 55504
Position Rear
Outlet Outside Diameter 2
Length 58
Grade Type Regular
Inlet Inside Diameter 2.25
Finish Aluminized
Inlet Quantity 1
Inlet Type Pipe connection
Material Steel
Outlet Quantity 2
Outlet Type Pipe connection
Universal Or Specific Fit Specific fit
Fits Ford, Lincoln, and Mercury · 23 vehicles

Specific fit. Precision-checked for a precise fit and quick, easy installation.

Aluminized steel. Built for durability with a corrosion-resistant finish.

Exhaust Y pipe. Connects one inlet to two outlets for exhaust routing.

Cross-references AP Exhaust 78266 and Walker Exhaust 53686 for the same application. See all 2.

$93.02Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $93.02
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Exhaust Y Pipe options

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.

Related reading

This part fits 23 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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
2008FordFusion—3.0LV6RearIf 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
2006FordFusion—3.0LV6RearIf welded assembly, replace all required parts
2006LincolnZephyrFWD3.0LV6RearIf welded assembly, replace all required parts
2006MercuryMilan—3.0LV6RearIf welded assembly, replace all required parts
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 78266Walker Exhaust — 53686