Walker 21144 Exhaust Muffler
OE Quality 60-Day Returns
Walker
 Quiet-Flow SS

Walker 21144 Exhaust Muffler

Brand Walker 21144
Inlet Outside Diameter 2.5
Finish Natural
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Body Width 9
Inlet Quantity 1
Outlet Inside Diameter 2.75
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 39.5
Body Height 7
Body Length 25
Body Material Stainless steel
Inlet 1 Outside Diameter 2.5
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 1.75
Inlet Type Pipe connection
Muffler Type Combination
Outlet 1 Inside Diameter 2.75
Outlet 1 Type Pipe connection
Outlet Configuration Offset
Outlet Type Pipe connection
Product line Quiet-Flow SS
Fits Ford · 51 vehicles

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

Precision fit. Installs cleanly with OE-style sound and superior flow.

Quiet-Flow SS line. Walker mufflers blend refined sound with dependable design.

Cross-references Anchor 2622 for the same application. See all 1.

$166.07Free 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 $166.07
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 F-150

Walker Quiet-Flow SS muffler Part Number 21144 is a specific-fit exhaust muffler built with 100% stainless-steel construction for corrosion resistance and long-term durability. It is engineered for a precise fit and OE-style sound on select Ford F-150 applications, including 2015-2020 models.

Key Features

  • 100% stainless-steel body material for improved durability
  • Specific-fit design for select Ford F-150 applications
  • Oval muffler shape with a combination muffler design
  • Offset inlet and outlet configuration for application-specific routing
  • 2.5 in. inlet outside diameter and 2.75 in. outlet inside diameter
  • Natural finish with stainless-steel construction
  • Walker Quiet-Flow SS product line focused on precision fit and controlled exhaust sound

Product Details

Walker Quiet-Flow SS Part Number 21144 is a stainless-steel exhaust muffler made for drivers who need a direct-fit replacement with OE-style sound characteristics. The oval body measures 25 in. long, 9 in. wide, and 7 in. high, with an overall length of 39.5 in. The inlet uses a 2.5 in. pipe connection with a 1.75 in. offset, while the outlet uses a 2.75 in. pipe connection in an offset configuration. This part cross-references Anchor 2622 for the same application.

Used For These Issues

  • Replacing a rusted or damaged factory muffler
  • Restoring exhaust flow after muffler failure
  • Addressing exhaust noise from a worn internal muffler core
  • Matching a direct-fit exhaust service part on Ford F-150 trucks
  • Maintaining a factory-style exhaust tone on 2015-2020 Ford F-150 models

Installation Notes and Tips

Compatible With 2015-2019 Ford F-150, N/A, and 2020 Ford F-150, N/A. Verify inlet and outlet diameters, offset layout, and overall muffler dimensions before installation. If the vehicle uses a welded exhaust assembly, replace all required related exhaust parts during service to maintain proper fit and alignment. Professional exhaust installation is recommended for best results.

Quality Assurance

Walker Quiet-Flow SS mufflers are built from stainless steel and are part of Walker’s OE-style exhaust replacement lineup. The product line is positioned for precision fit, steady exhaust flow, and controlled sound on domestic and import vehicles, including Ford F-150 applications.

Related reading

This part fits 51 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersWheel BasePositionNotes
2020FordF-1502.7LV6122.5"N/AQuiet-Flow SS
2019FordF-1502.7LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1503.5LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1502.7LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1503.5LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1502.7LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1502.7LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1502.7LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1503.5LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1503.5LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2019FordF-1503.5LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1502.7LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1503.5LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1502.7LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1503.5LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1502.7LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1502.7LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1502.7LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1503.5LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1503.5LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018FordF-1503.5LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1502.7LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1502.7LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1502.7LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1502.7LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1502.7LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1503.5LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1503.5LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1503.5LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1503.5LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017FordF-1503.5LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1502.7LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1502.7LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1502.7LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1502.7LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1502.7LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1503.5LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1503.5LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1503.5LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1503.5LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016FordF-1503.5LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1502.7LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1502.7LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1502.7LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1502.7LV6163.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1502.7LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1503.5LV6157.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1503.5LV6122.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1503.5LV6145.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1503.5LV6141.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015FordF-1503.5LV6163.0"N/APremium; 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 — 2622