Walker 21386 Exhaust Muffler
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Walker
 Quiet-Flow SS

Walker 21386 Exhaust Muffler

Brand Walker 21386
Outlet Outside Diameter 2.5
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.25
Body Width 9.75
Inlet Quantity 1
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 26.61
Body Height 4.25
Body Length 19
Body Material Stainless steel
Finish Aluminized
Inlet 1 Inside Diameter 2.25
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 2.875
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Outside Diameter 2.5
Outlet 1 Type Tip
Outlet Configuration Offset
Outlet Type Tip
Product line Quiet-Flow SS
Fits Ford and Mercury · 27 vehicles

100% stainless-steel construction. Resists corrosion for long-lasting exhaust performance.

Precision fit. Specific-fit design helps installation go smoothly.

OE-style sound. Delivers a refined exhaust note without excess drone.

Cross-references AP Exhaust 14711 and National 2377 for the same application. See all 2.

$125.58Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $125.58
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Walker Quiet-Flow SS Muffler for Taurus and Sable

Walker Quiet-Flow SS 21386 is a specific-fit exhaust muffler built with 100% stainless-steel construction for corrosion resistance and long-term durability. It is engineered for OE-style sound, precise fitment, and steady exhaust flow on select Ford Taurus and Mercury Sable applications.

Key Features

  • Specific-fit exhaust muffler for direct application matching
  • 100% stainless-steel body construction
  • Oval muffler shape with combination muffler design
  • Offset inlet and offset outlet configuration
  • 2.25 in. inlet inside diameter and 2.5 in. outlet outside diameter
  • Designed for OE-style sound and balanced exhaust flow
  • Walker Quiet-Flow SS product line for domestic and import vehicle coverage

Product Details

Walker Quiet-Flow SS 21386 is a replacement exhaust muffler for 2000-2007 Ford Taurus and 2000-2005 Mercury Sable models. The stainless-steel body helps resist exhaust-system corrosion, while the oval, combination-style housing supports a factory-like sound profile. With a 19 in. body length and 26.61 in. overall length, this muffler is built around the original application dimensions for a precise installation on the listed vehicles. If you are searching for a Walker 21386 muffler for Ford Taurus or Mercury Sable exhaust repair, this part matches the confirmed fitment shown here.

The Quiet-Flow SS line is Walker’s stainless-steel muffler family for drivers who want a direct replacement with OE-style acoustics and application-specific fitment. Part number 21386 is also referenced by AP Exhaust 14711 and National 2377 for the same application.

Common Exhaust Issues It Can Address

  • Rusted or perforated factory muffler housing
  • Exhaust noise from internal muffler deterioration
  • Restricted exhaust flow caused by a damaged muffler
  • Fitment problems from a previous incorrect replacement part
  • Factory exhaust tone that no longer matches the original sound profile

Installation Notes and Tips

Confirm the inlet and outlet configuration before installation: this muffler uses a 2.25 in. pipe-connection inlet with offset inlet placement and a 2.5 in. tip-style outlet with offset outlet placement. Because fitment is specific, compare the vehicle’s exhaust routing and original muffler dimensions before welding or final assembly. For welded assemblies, replace all required related parts as needed to complete the repair correctly.

Fits 2000-2007 Ford Taurus and 2000-2005 Mercury Sable, N/A.

Quality Assurance

Walker Quiet-Flow SS mufflers are built with stainless-steel construction and application-specific fitment for the listed Ford Taurus and Mercury Sable vehicles. This part is backed by the limited lifetime warranty noted for the confirmed fitment applications.

Related reading

This part fits 27 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersFuel TypePositionNotes
2007FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2006FordTaurusSedan3.0LV6FLEXN/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005FordTaurusSedan3.0LV6FLEXN/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005MercurySableSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2005MercurySable—3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004FordTaurusSedan3.0LV6FLEXN/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004MercurySableSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2004MercurySable—3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003FordTaurusSedan3.0LV6FLEXN/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003MercurySableSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2003MercurySable—3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2002FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2002FordTaurusSedan3.0LV6FLEXN/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2002MercurySableSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2002MercurySable—3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2001FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2001FordTaurusSedan3.0LV6FLEXN/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2001MercurySableSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2001MercurySable—3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000FordTaurusSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000FordTaurusSedan3.0LV6FLEXN/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000MercurySableSedan3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000MercurySable—3.0LV6—N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 14711National — 2377