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Walker 21366 Exhaust MufflerOE Quality 60-Day Returns
Part #: 21366

Walker 21366 Exhaust Muffler

Quiet-Flow SS
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Quiet-Flow SS
🚗Fitment: Ford and Mercury, Explorer and Mountaineer
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Walker 21366 Exhaust Muffler
BrandWalker
Part Number21366
PositionQuiet-Flow SS
Outlet Outside Diameter2.5
Universal Or Specific FitSpecific
ShapeOval
Grade TypeRegular
Inlet Inside Diameter2.5
Body Width11
Outlet Quantity1
ReversibleNo
TunableNo
Overall Length31.625
Body Height5.5
Body Length20
Body MaterialStainless steel
FinishAluminized
Inlet 1 Type2 bolt loose flange with spherical flare
Inlet 2 Inside Diameter2.5
Inlet 2 TypePipe connection
Inlet ConfigurationOffset
Inlet Offset3.5
Inlet Quantity2
Inlet Type2 bolt loose flange with spherical flare
Inlet TypePipe connection
Muffler TypeCombination
Outlet 1 Outside Diameter2.5
Outlet 1 TypePipe connection
Outlet ConfigurationCenter
Outlet TypePipe connection

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001FordExplorer5.0LV8N/APremium; with Dual Inlets; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2001MercuryMountaineer5.0LV8N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000FordExplorer5.0LV8N/APremium; with Dual Inlets; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000MercuryMountaineer5.0LV8N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1999FordExplorer5.0LV8N/APremium; with Dual Inlets; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1999MercuryMountaineer5.0LV8N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1998FordExplorer5.0LV8N/APremium; with Dual Inlets; Limited Lifetime Warranty; After 01/28/1998; If welded assembly, replace all required parts; Quiet-Flow SS
1998MercuryMountaineer5.0LV8N/APremium; Limited Lifetime Warranty; After 01/28/1998; If welded assembly, replace all required parts; Quiet-Flow SS

* 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:

2294

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

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