Walker
Quiet-Flow SS

Walker 21192 Exhaust Muffler

Brand Walker 21192
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2
Body Width 9.75
Inlet Quantity 1
Outlet Inside Diameter 2
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 25.5
Body Height 4.25
Body Length 21
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 Inside Diameter 2
Outlet 1 Type Pipe connection
Outlet Configuration Center
Outlet Type Pipe connection
Product line Quiet-Flow SS
Fits Ford and Mercury · 12 vehicles

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

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

OE-style sound. Delivers a refined exhaust note without harshness.

Cross-references Walker Exhaust 41831, 2212 and 2483 for the same application. See all 3.

$141.45Free 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.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $141.45
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Quiet-Flow SS Muffler for Explorer and Mountaineer

Walker Quiet-Flow SS muffler part number 21192 is a specific-fit exhaust muffler built with stainless-steel construction for direct replacement applications. It is shaped as an oval combination muffler with a 2-inch offset inlet and 2-inch center outlet, making it a practical choice for restoring exhaust function on select Ford Explorer and Mercury Mountaineer models.

Key Features

  • Specific-fit exhaust muffler for confirmed vehicle applications
  • 100% stainless-steel body construction for corrosion resistance
  • Oval body shape with combination muffler design
  • 2-inch inlet and 2-inch outlet pipe connection
  • Offset inlet and center outlet configuration
  • OE-style sound profile for replacement use
  • Walker Quiet-Flow SS product line for domestic and import coverage

Product Details

The Walker Quiet-Flow SS line focuses on precision fit, steady exhaust flow, and an OE-style sound level. This muffler uses a stainless-steel body with an aluminized finish and measures 25.5 inches overall, with a 21-inch body length, 9.75-inch body width, and 4.25-inch body height. Part number 21192 is listed for 1995-2001 Ford Explorer and 1999-2001 Mercury Mountaineer applications, including 2000 Ford Explorer after 12/1999 and 1999-2000 Mercury Mountaineer after 12/1999. This part cross-references Walker Exhaust 41831 for the same application.

Common Replacement Reasons

  • Exhaust noise from a worn or damaged muffler
  • Rust or corrosion affecting the original muffler body
  • Restricted exhaust flow from internal deterioration
  • Need for a direct-fit replacement on Ford Explorer or Mercury Mountaineer
  • Restoration of factory-like exhaust tone after muffler failure

Installation Notes

Verify the inlet offset and outlet center configuration before installation, since this muffler is not reversible or tunable. Confirm the vehicle build date for 2000 Ford Explorer and 1999-2000 Mercury Mountaineer applications, as the fitment notes specify after 12/1999. If the exhaust system uses a welded assembly, replace all required related parts during service to maintain proper alignment and sealing.

Quality Assurance

Walker positions Quiet-Flow SS mufflers as stainless-steel replacement parts with precision fit and OE-style sound characteristics. Part number 21192 is supported by confirmed fitment for select Ford Explorer and Mercury Mountaineer models, and the product line is offered for a broad range of domestic and import vehicles.

  • Fits 1995-2001 Ford Explorer, N/A
  • Fits 2001 Mercury Mountaineer, N/A
  • Fits 2000 Ford Explorer, N/A, after 12/1999
  • Fits 1999-2000 Mercury Mountaineer, N/A, after 12/1999
This part fits 12 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModel# DoorsLitersCylindersPositionNotes
2001FordExplorer4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2001MercuryMountaineer4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000FordExplorer4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2000FordExplorer4 Door4.0LV6N/APremium; Limited Lifetime Warranty; After 12/1999; If welded assembly, replace all required parts; Quiet-Flow SS
2000MercuryMountaineer4.0LV6N/APremium; Limited Lifetime Warranty; After 12/1999; If welded assembly, replace all required parts; Quiet-Flow SS
1999FordExplorer4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1999MercuryMountaineer4.0LV6N/APremium; Limited Lifetime Warranty; After 12/1999; If welded assembly, replace all required parts; Quiet-Flow SS
1998FordExplorer4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1997FordExplorer4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1996FordExplorer2 Door4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1996FordExplorer4 Door4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
1995FordExplorer4.0LV6N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Walker Exhaust — 4183122122483