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Walker 21507 Exhaust Muffler
| Brand | Walker 21507 |
|---|---|
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Inlet Inside Diameter | 3 |
| Body Width | 9 |
| Inlet Quantity | 1 |
| Outlet Inside Diameter | 3 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 25.5 |
| Body Height | 7 |
| Body Length | 20 |
| Body Material | Stainless steel |
| Finish | Aluminized |
| Inlet 1 Inside Diameter | 3 |
| Inlet 1 Type | Pipe connection |
| Inlet Configuration | Offset |
| Inlet Offset | 2.625 |
| Inlet Type | Pipe connection |
| Muffler Type | Combination |
| Outlet 1 Inside Diameter | 3 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Offset |
| Outlet Type | Pipe connection |
| Product line | Quiet-Flow SS |
| Fits | Ford · 27 vehicles |
100% stainless-steel construction. Resists corrosion for long-lasting exhaust performance.
Precision fit. Helps deliver an OE-style replacement with straightforward installation.
OE-style sound. Keeps exhaust tone refined without adding harshness.
Cross-references Anchor 2557 and Anchor 2559 for the same application. See all 2.
Walker Quiet-Flow SS Muffler Overview
Walker Quiet-Flow SS Muffler Part Number 21507 is a specific-fit exhaust muffler built for select Ford Super Duty applications. It uses 100% stainless-steel body construction with an oval case, 3-inch inlet and 3-inch outlet, and OE-style sound characteristics for a direct replacement on the listed vehicles.
The Quiet-Flow SS line focuses on precision fit and controlled exhaust flow for domestic and import vehicles. For Ford F-250 Super Duty and Ford F-350 Super Duty owners, Walker 21507 provides a replacement muffler option that matches the original-style exhaust layout and sound profile.
Key Features
- Specific-fit exhaust muffler for listed Ford Super Duty applications
- 100% stainless-steel body construction for corrosion resistance
- Oval muffler shape with 25.5-inch overall length
- 3-inch inlet and 3-inch outlet with pipe connection ends
- Offset inlet and offset outlet configuration
- Quiet-Flow SS product line with OE-style sound characteristics
- Walker part number 21507 for catalog and fitment reference
Detailed Product Description
Walker Quiet-Flow SS 21507 is a combination-style exhaust muffler with a stainless-steel body, aluminized finish, 9-inch body width, 7-inch body height, and 20-inch body length. The offset inlet and outlet layout supports the factory-style exhaust routing used on the covered Ford trucks, including 2001-2003 Ford F-250 Super Duty and 2001-2003 Ford F-350 Super Duty, plus 1999-2001 Ford F-250 Super Duty and 1999-2001 Ford F-350 Super Duty applications listed for wide-frame configurations. This muffler is a direct replacement choice for buyers searching for a Ford F-250 Super Duty muffler, Ford F-350 Super Duty exhaust muffler, or Walker 21507 replacement part.
This part cross-references Anchor 2557 and 2559 for the same application.
Common Problems It Can Address
- Rust damage or case deterioration in the original muffler
- Exhaust noise increase from a worn internal muffler core
- Fitment issues when replacing a factory-style offset muffler
- Loss of OE-style exhaust tone after corrosion or impact damage
- Need for a direct replacement on listed Ford Super Duty trucks
Installation Notes and Tips
Verify the inlet and outlet diameter, offset configuration, and overall length against the existing muffler before installation. This part is listed for specific Ford F-250 Super Duty and Ford F-350 Super Duty applications, including notes for catalytic converter and wide-frame configurations where shown in the fitment data. If the exhaust assembly is welded, replace all required related parts during service to maintain proper alignment and sealing.
Quality Assurance
Walker Quiet-Flow SS mufflers are built with 100% stainless-steel construction and are part of a line engineered for precision fit, superior flow, and OE-style sound. Part number 21507 is listed with limited lifetime warranty coverage in the fitment notes for the applicable Ford Super Duty vehicles.
Vehicle Fitment
- Fits 2001-2003 Ford F-250 Super Duty, N/A
- Fits 2001-2003 Ford F-350 Super Duty, N/A
- Fits 1999-2001 Ford F-250 Super Duty, N/A
- Fits 1999-2001 Ford F-350 Super Duty, N/A
| Year | Make | Model | Body Type | Liters | Cylinders | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2003 | Ford | F-250 Super Duty | — | 7.3L | V8 | — | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | 142.0" | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | 158.0" | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | Ford | F-350 Super Duty | Crew Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | Ford | F-350 Super Duty | Cab & Chassis | 7.3L | V8 | — | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Ford | F-250 Super Duty | — | 7.3L | V8 | — | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | 142.0" | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | 158.0" | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Ford | F-350 Super Duty | Crew Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Ford | F-350 Super Duty | Cab & Chassis | 7.3L | V8 | — | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-250 Super Duty | — | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-250 Super Duty | — | 7.3L | V8 | — | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | 142.0" | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | 158.0" | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-350 Super Duty | Crew Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-350 Super Duty | Cab & Chassis | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-350 Super Duty | Cab & Chassis | 7.3L | V8 | — | N/A | Premium; with Catalytic Converter; with Wide Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Ford | F-350 Super Duty | Crew Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2000 | Ford | F-250 Super Duty | — | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2000 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2000 | Ford | F-350 Super Duty | Cab & Chassis | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2000 | Ford | F-350 Super Duty | Crew Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 1999 | Ford | F-250 Super Duty | — | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 1999 | Ford | F-350 Super Duty | Extended Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 1999 | Ford | F-350 Super Duty | Cab & Chassis | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 1999 | Ford | F-350 Super Duty | Crew Cab Pickup | 7.3L | V8 | — | N/A | Premium; with Wide Frame; without Catalytic Converter; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
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