Walker 21438 Exhaust Muffler - Left
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Walker
 Quiet-Flow SS

Walker 21438 Exhaust Muffler - Left

Brand Walker 21438
Position Left
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2
Body Width 9.75
Inlet Quantity 1
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 24.75
Body Height 4.25
Body Length 20
Body Material Stainless steel
Finish Aluminized
Inlet 1 Inside Diameter 2
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 2.875
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Type 2 bolt welded flange
Outlet Configuration Center
Outlet Type 2 bolt welded flange
Product line Quiet-Flow SS
Fits Ford, Lincoln, and Mercury · 51 vehicles

100% stainless-steel construction. Resists corrosion while delivering long-lasting durability.

Precision fit. Engineered for a straightforward, OE-style replacement.

OE-style sound. Keeps exhaust tone refined without adding harshness.

Cross-references Anchor 2408 for the same application. See all 1.

$109.85Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

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Step 2 — Quantity
Order total $109.85
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 Muffler options

Walker Quiet-Flow SS Muffler for Ford, Lincoln, Mercury

Walker Quiet-Flow SS muffler Part Number 21438 is a direct-fit exhaust muffler built for specific applications on the Ford Crown Victoria, Lincoln Town Car, and Mercury Grand Marquis. It combines stainless-steel construction with an OE-style sound profile and a precision-fit design for a clean replacement on select 2003-2011 vehicles.

Key Features

  • Specific-fit exhaust muffler for select Ford, Lincoln, and Mercury applications
  • 100% stainless-steel body construction for corrosion resistance
  • Oval muffler shape with a 2-inch inlet and center outlet configuration
  • Combination muffler design for controlled exhaust flow and sound
  • Offset inlet layout with a 2-bolt welded flange outlet connection
  • Walker Quiet-Flow SS product line focused on OE-style sound and fit

Product Details

Walker Quiet-Flow SS muffler 21438 is engineered for drivers who need a replacement exhaust muffler that matches the original fit and sound characteristics of the vehicle. The stainless-steel body supports long-term durability, while the oval housing and specific inlet/outlet configuration help maintain proper exhaust routing. This part is a strong match for 2003-2011 Ford Crown Victoria, 2003-2011 Lincoln Town Car, and 2003-2011 Mercury Grand Marquis applications, including select left-side and dual-exhaust configurations. This part cross-references Anchor 2408 for the same application.

Vehicle Fitment

  • Fits 2003-2011 Ford Crown Victoria, left; Premium; without Fire Suppression System; if welded assembly, replace all required parts; Quiet-Flow SS.
  • Fits 2003-2011 Ford Crown Victoria, left; Premium; with Dual Exhaust; if welded assembly, replace all required parts; Quiet-Flow SS.
  • Fits 2003-2011 Lincoln Town Car, N/A; Quiet-Flow SS.
  • Fits 2003-2011 Mercury Grand Marquis, left; Premium; with Dual Exhaust; if welded assembly, replace all required parts; Quiet-Flow SS.

Common Replacement Uses

  • Replacing a rusted or leaking muffler on a Ford Crown Victoria
  • Restoring OE-style exhaust tone on a Lincoln Town Car
  • Addressing exhaust noise from a worn Mercury Grand Marquis muffler
  • Correcting fitment issues on a vehicle with the original welded exhaust assembly
  • Maintaining proper exhaust flow after muffler failure

Installation Notes

Verify the inlet and outlet configuration before installation: this muffler uses a 2-inch inlet, offset inlet placement, and a center outlet with a 2-bolt welded flange. Because some listed applications note welded assemblies, inspect the full exhaust section and replace all required parts as needed for proper alignment and sealing.

Quality Assurance

Walker Quiet-Flow SS is the brand’s stainless-steel muffler line, built around precision fit, improved flow, and OE-style sound characteristics for domestic and import vehicles. Part Number 21438 is intended for specific vehicle applications listed above.

Related reading

This part fits 51 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2011FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2011FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2011FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2011LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2011MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2010FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2010LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2010MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2009FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2009FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2009LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2009MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2008FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2008LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2008MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2007LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2007MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordCrown VictoriaLX Sport4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2006MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordCrown VictoriaSpecial Edition4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordCrown VictoriaS4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordCrown VictoriaLX Sport4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2005MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordCrown VictoriaLX Sport4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2004MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003FordCrown VictoriaPolice Interceptor4.6LV8LeftPremium; Limited Lifetime Warranty; without Fire Suppression System; If welded assembly, replace all required parts; Quiet-Flow SS
2003FordCrown VictoriaLWB4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003FordCrown VictoriaLX4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003FordCrown VictoriaBase4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003FordCrown VictoriaS4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003LincolnTown Car—4.6LV8N/AQuiet-Flow SS
2003MercuryGrand Marquis—4.6LV8LeftPremium; with Dual Exhaust; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2408