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Walker 21587 Exhaust Muffler
| Brand | Walker 21587 |
|---|---|
| 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 | 24 |
| Body Height | 7 |
| Body Length | 19 |
| 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 · 32 vehicles |
Stainless-steel construction. Built for corrosion resistance and long-term exhaust service.
OE-style sound. Delivers controlled exhaust tone with precision fit engineering.
Quiet-Flow SS line. Walker’s stainless muffler family for direct-fit exhaust replacement.
Cross-references 3C3Z5230BB and 6C3Z5230DA for the same application. See all 2.
Quiet-Flow SS Muffler Overview
Walker Quiet-Flow SS muffler part number 21587 is a specific-fit exhaust muffler built with stainless-steel construction and an OE-style sound profile. It is shaped for a precise fit and uses a 3-inch offset pipe connection on both the inlet and outlet.
Key Features
- 100% stainless-steel body for corrosion resistance.
- Oval combination muffler design with a regular grade type.
- 3-inch inlet and 3-inch outlet with offset pipe connections.
- Aluminized finish for added surface protection.
- Quiet-Flow SS product line focused on precision fit and controlled exhaust tone.
Detailed Description
Walker 21587 is part of the Quiet-Flow SS line, a stainless-steel muffler family engineered for direct-fit exhaust service on select applications. The 24-inch overall length, 19-inch body length, 7-inch body height, and 9-inch body width provide a compact oval profile that works with the listed exhaust layout. This muffler is designed for Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-450 Super Duty, and Ford F-550 Super Duty applications from 2005-2006 with Narrow Frame notes in the fitment data. The Quiet-Flow SS design emphasizes OE-style sound and consistent exhaust flow, making Walker 21587 a practical replacement when restoring exhaust performance on these Super Duty trucks.
This part cross-references Ford service numbers 3C3Z5230BB and 6C3Z5230DA for the same application.
What It Helps Address
- Exhaust noise that has become louder or less controlled.
- Corrosion-related muffler deterioration.
- Restricted exhaust flow from a worn internal muffler.
- Fitment issues on specific Ford Super Duty exhaust layouts.
Installation Notes
Compatible With 2005-2006 Ford F-250 Super Duty, N/A; 2005-2006 Ford F-350 Super Duty, N/A; 2005-2006 Ford F-450 Super Duty, N/A; and 2005-2006 Ford F-550 Super Duty, N/A. Fitment notes specify Narrow Frame and indicate that if the assembly is welded, all required parts should be replaced. Verify inlet and outlet alignment, offset configuration, and overall dimensions before installation.
Quality Assurance
Walker Quiet-Flow SS mufflers are built with 100% stainless-steel construction and are offered for broad domestic and import coverage. Part number 21587 is engineered for precision fit and OE-style sound control.
| Year | Make | Model | Liters | Cylinders | Wheel Base | Notes |
|---|---|---|---|---|---|---|
| 2006 | Ford | F-250 Super Duty | 6.0L | V8 | 137.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-250 Super Duty | 6.0L | V8 | 156.2" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-250 Super Duty | 6.0L | V8 | 158.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-250 Super Duty | 6.0L | V8 | 141.8" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-350 Super Duty | 6.0L | V8 | — | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-450 Super Duty | 6.0L | V8 | 162.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-450 Super Duty | 6.0L | V8 | 165.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-450 Super Duty | 6.0L | V8 | 141.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-450 Super Duty | 6.0L | V8 | 200.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-450 Super Duty | 6.0L | V8 | 201.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-450 Super Duty | 6.0L | V8 | 176.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-550 Super Duty | 6.0L | V8 | 176.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-550 Super Duty | 6.0L | V8 | 165.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-550 Super Duty | 6.0L | V8 | 200.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-550 Super Duty | 6.0L | V8 | 201.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2006 | Ford | F-550 Super Duty | 6.0L | V8 | 162.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-250 Super Duty | 6.0L | V8 | 137.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-250 Super Duty | 6.0L | V8 | 156.2" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-250 Super Duty | 6.0L | V8 | 158.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-250 Super Duty | 6.0L | V8 | 141.8" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-350 Super Duty | 6.0L | V8 | — | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-450 Super Duty | 6.0L | V8 | 162.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-450 Super Duty | 6.0L | V8 | 165.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-450 Super Duty | 6.0L | V8 | 141.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-450 Super Duty | 6.0L | V8 | 200.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-450 Super Duty | 6.0L | V8 | 201.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-450 Super Duty | 6.0L | V8 | 176.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-550 Super Duty | 6.0L | V8 | 176.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-550 Super Duty | 6.0L | V8 | 165.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-550 Super Duty | 6.0L | V8 | 200.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-550 Super Duty | 6.0L | V8 | 201.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2005 | Ford | F-550 Super Duty | 6.0L | V8 | 162.0" | Premium; with Narrow Frame; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| No rows match your filter. | ||||||