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Walker 21561 Exhaust Muffler
| Brand | Walker 21561 |
|---|---|
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Inlet Inside Diameter | 2.25 |
| Body Width | 11 |
| Inlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 24.75 |
| Body Height | 5.5 |
| Body Length | 17 |
| Body Material | Stainless steel |
| Finish | Aluminized |
| Inlet 1 Inside Diameter | 2.25 |
| Inlet 1 Type | Pipe connection |
| Inlet Configuration | Offset |
| Inlet Offset | 3.75 |
| Inlet Type | Pipe connection |
| Muffler Type | Combination |
| Outlet 1 Outside Diameter | 1.75 |
| Outlet 1 Type | Tip |
| Outlet 2 Outside Diameter | 1.75 |
| Outlet Configuration | Offset |
| Outlet Outside Diameter | 1.75 |
| Outlet Quantity | 2 |
| Outlet Type | Tip |
| Product line | Quiet-Flow SS |
| Fits | Ford and Mercury · 6 vehicles |
100% stainless steel. Corrosion-resistant construction for long service life.
Precision fit. Built for a specific application with OE-style sound.
Superior flow. Combination muffler design helps exhaust move efficiently.
Cross-references Anchor 2530 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Walker Quiet-Flow SS Muffler for Ford Five Hundred and Mercury Montego
Walker Quiet-Flow SS muffler Part Number 21561 is a specific-fit exhaust muffler built for select 2005-2007 Ford Five Hundred and Mercury Montego applications. It combines stainless-steel construction with an OE-style sound profile and a fitment layout that matches the original exhaust routing.
Key Features
- Specific-fit exhaust muffler for select Ford Five Hundred and Mercury Montego models
- 100% stainless-steel body construction for corrosion resistance
- Oval muffler body with a combination muffler design
- 2.25-inch inlet inside diameter with offset inlet configuration
- Dual 1.75-inch outlet tips with offset outlet configuration
- Overall length: 24.75 inches; body length: 17 inches; body width: 11 inches; body height: 5.5 inches
- Walker Quiet-Flow SS product line focused on precision fit and OE-style exhaust sound
Product Details
Walker Quiet-Flow SS Part Number 21561 is an exhaust muffler engineered for direct replacement on 2005-2007 Ford Five Hundred and 2005-2007 Mercury Montego vehicles. The stainless-steel body supports long-term durability, while the oval, combination-style design helps maintain factory-like exhaust tone and proper flow characteristics. This muffler uses a 2.25-inch pipe connection inlet with an offset inlet placement and dual 1.75-inch outlet tips in an offset outlet configuration.
The Quiet-Flow SS line is Walker’s stainless-steel muffler family for domestic and import vehicles, built around fitment accuracy and OE-style sound control. For shoppers searching for a 2005-2007 Ford Five Hundred muffler replacement, Mercury Montego exhaust muffler, or Walker 21561 direct-fit muffler, this part matches the listed applications and dimensions.
This part cross-references Anchor 2530 for the same application.
Common Issues It Can Address
- Rust or corrosion in the original muffler body
- Exhaust noise increase from a worn or damaged muffler
- Restricted exhaust flow caused by internal muffler deterioration
- Fitment problems when replacing a factory-style muffler assembly
- Loss of OE-like exhaust tone on the vehicle
Installation Notes and Tips
Verify the inlet and outlet configuration, overall length, and body dimensions before installation. This muffler is specific fit, so confirm the vehicle application and exhaust routing for 2005-2007 Ford Five Hundred and Mercury Montego models before ordering. If the exhaust system uses a welded assembly, replace all required related parts during service to maintain proper alignment and sealing.
Quality Assurance
Walker Quiet-Flow SS mufflers are built with stainless-steel construction and are positioned by the manufacturer as OE-style replacement mufflers with precision fit and controlled exhaust sound. Part Number 21561 is listed for the specified Ford Five Hundred and Mercury Montego applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2007 | Ford | Five Hundred | 3.0L | V6 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2007 | Mercury | Montego | 3.0L | V6 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | Five Hundred | 3.0L | V6 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Mercury | Montego | 3.0L | V6 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | Five Hundred | 3.0L | V6 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Mercury | Montego | 3.0L | V6 | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
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