Walker
Quiet-Flow SS

Walker 21217 Exhaust Muffler - Rear Left

Brand Walker 21217
Position Rear Left
Exhaust Tip Quantity 1
Exhaust Tip Material Stainless steel
Outlet Tip Shape Round
Clamps Included No
Outlet Location Center
Universal Or Specific Fit Specific
Shape Oval
Shape Round
Grade Type Premium
Body Diameter 11.000
Inlet Type Pipe connection
Outlet Type Tip
Body Height 5.500
Body Length 15.000
Body Width 11.000
Hanger Included Yes
Inlet Location Offset
Inlet Quantity 1
Body Material Stainless steel
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 33.50
9876 Angle trim
Inlet Inside Diameter 2.000
Inlet Offset Yes
Outlet Offset No
Outlet Outside Diameter 3.000
Product line Quiet-Flow SS
Fits Ford and Lincoln · 11 vehicles

Stainless-steel build. 100% stainless-steel construction helps resist corrosion in exhaust service.

Quiet-Flow SS line. Precision-fit mufflers with OE-style sound for specific replacement applications.

Specific-fit design. Built for application-matched exhaust replacement with a hanger included.

Cross-references AP Exhaust 30082 and JA8Z5230A for the same application. See all 2.

$141.86Free shipping
Out of stock
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Step 2 — Quantity
Order total $141.86
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Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

Walker Quiet-Flow SS 21217 is a specific-fit exhaust muffler built with stainless-steel construction and OE-style sound characteristics. It is engineered for direct replacement applications on select Ford and Lincoln vehicles, with fitment covering rear left installations.

Key Features

  • 100% stainless-steel construction for corrosion resistance.
  • Precision-fit design for specific applications.
  • OE-style sound profile for a factory-like exhaust note.
  • Offset inlet with center outlet layout.
  • Hanger included for application-specific installation.
  • Round stainless-steel exhaust tip with premium-grade construction.

Detailed Description

The Walker Quiet-Flow SS 21217 muffler is part of the Quiet-Flow SS line, a product family focused on stainless-steel durability, controlled exhaust tone, and application-specific fitment. This muffler uses a pipe connection inlet, a 2.000-inch inlet inside diameter, and a 3.000-inch outlet outside diameter, with an overall length of 33.50 inches. Its oval body shape and stainless-steel body material support long-term service in exhaust replacement work. This part cross-references AP Exhaust 30082 for the same application.

Fits 2013-2019 Ford Flex, rear left. Fits 2013-2016 Lincoln MKT, rear left. Walker 21217 is a direct-fit option for owners replacing a worn or damaged muffler on these vehicles, including Ford Flex and Lincoln MKT applications where OE-style sound and specific fit are required.

What It Is Used For

  • Replacing a rusted or damaged exhaust muffler.
  • Restoring factory-like exhaust sound levels.
  • Addressing exhaust leaks at the muffler assembly.
  • Returning proper exhaust flow through a specific-fit replacement.

Installation Notes and Tips

Confirm rear-left fitment before installation and verify inlet and outlet dimensions against the existing exhaust system. This muffler uses a specific-fit layout with an offset inlet and center outlet, so alignment should be checked carefully during installation. Clamps are not included.

Quality Assurance

Walker Quiet-Flow SS mufflers are built with 100% stainless-steel construction and are part of Walker's Quiet-Flow SS product line, which emphasizes precision fit and OE-style sound.

This part fits 11 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2019FordFlex3.5LV6Rear LeftQuiet-Flow SS
2018FordFlex3.5LV6Rear LeftQuiet-Flow SS
2017FordFlex3.5LV6Rear LeftQuiet-Flow SS
2016FordFlex3.5LV6Rear LeftQuiet-Flow SS
2016LincolnMKT2.0LL4Rear LeftQuiet-Flow SS
2015FordFlex3.5LV6Rear LeftQuiet-Flow SS
2015LincolnMKT2.0LL4Rear LeftQuiet-Flow SS
2014FordFlex3.5LV6Rear LeftQuiet-Flow SS
2014LincolnMKT2.0LL4Rear LeftQuiet-Flow SS
2013FordFlex3.5LV6Rear LeftQuiet-Flow SS
2013LincolnMKT2.0LL4Rear LeftQuiet-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 — 30082JA8Z5230A