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Walker 55684 Exhaust Resonator and Pipe Assembly - Rear
| Brand | Walker 55684 |
|---|---|
| Position | Rear |
| Outlet Outside Diameter | 2.25 |
| Muffler Body Length | 18 |
| Pipe Material | Steel |
| Inlet Inside Diameter | 2.25 |
| Overall Length | 49.5 |
| Body 1 Height | 5 |
| Body 1 Length | 18 |
| Body 1 Shape | Round |
| Body 1 Width | 5 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet Quantity | 1 |
| Inlet Type | Pipe connection |
| Outlet Quantity | 1 |
| Outlet Type | Pipe connection |
| Fits | Ford · 4 vehicles |
OE-style tuning. Helps match original exhaust sound and flow characteristics.
Steel construction. Aluminized finish adds serviceable corrosion resistance.
Direct-fit assembly. Pipe connection inlet and outlet simplify exhaust replacement.
Cross-references AP Exhaust 30020, AP Exhaust 78286 and Four Seasons 54933 for the same application. See all 4.
Overview
Walker 55684 is an exhaust resonator and pipe assembly built to match original-system fit, sound, and flow characteristics. It is a direct-fit exhaust replacement for select Ford Flex applications and uses OE-style tuning to help maintain factory-like exhaust tone.
Compatible With 2009-2012 Ford Flex applications, including rear-position fitments listed for welded assemblies. Walker 55684 is a practical choice when replacing a worn resonator and pipe section with a part that follows the original layout.
Key Features
- Exhaust resonator and pipe assembly for select factory-style replacement needs
- Precise tuning technology for OE-style sound and flow characteristics
- Steel construction with aluminized finish for exhaust system service
- Pipe connection inlet and outlet for a straightforward exhaust interface
- Round resonator body design with 2.25-inch inlet and outlet sizing
Detailed Description
Walker 55684 is engineered as an exhaust resonator and pipe assembly for Ford Flex models in the 2009-2012 range. The design focuses on matching original-system performance by balancing exhaust flow and sound quality, while the steel body and aluminized finish provide a serviceable construction for exhaust replacement work. The 49.5-inch overall length and 18-inch resonator body length reflect the assembly’s factory-style layout.
This part cross-references AP Exhaust (e.g., 30020, 78286) for the same application. Walker 55684 is a fitment-based replacement for rear-position applications on the Ford Flex, and the pipe connection inlet and outlet simplify matching the existing exhaust path.
What It Helps Address
- Exhaust noise that no longer matches factory tone
- Corrosion or deterioration in the resonator and pipe section
- Flow restriction caused by a damaged exhaust assembly
- Fitment issues when replacing a welded resonator section
Installation Notes
Fits 2010-2012 Ford Flex, rear. Fits 2009 Ford Flex, N/A. Review the welded-assembly note before installation and confirm the existing exhaust configuration matches the listed application. Verify inlet and outlet sizing, overall length, and body dimensions against the vehicle’s original exhaust section before beginning work.
Quality Assurance
Walker uses precise tuning technologies to deliver OE-style sound and flow characteristics, supporting a factory-like replacement result for the listed applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Ford | Flex | 3.5L | V6 | Rear | If welded assembly, replace all required parts |
| 2011 | Ford | Flex | 3.5L | V6 | Rear | If welded assembly, replace all required parts |
| 2010 | Ford | Flex | 3.5L | V6 | Rear | If welded assembly, replace all required parts |
| 2009 | Ford | Flex | 3.5L | V6 | N/A | If welded assembly, replace all required parts |
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