OE Quality
60-Day Returns

Walker 56289 Exhaust Resonator and Pipe Assembly
Overview of Walker Exhaust Resonator and Pipe Assembly 56289
The Walker 56289 Exhaust Resonator and Pipe Assembly is designed specifically for Acura MDX models, providing a reliable replacement part that maintains proper exhaust flow and sound control. Constructed with durable aluminized steel, this assembly ensures long-lasting performance and corrosion resistance.
- Compatible with Acura MDX vehicles
- Overall length of 64.125 inches for precise fitment
- Steel pipe and body construction with aluminized finish for durability
- Single inlet with 3 bolt welded flange and dual outlets with 2 bolt welded flanges
- Round muffler body measuring 20 inches in length and 5 inches in diameter
Detailed Product Features and Specifications
This exhaust resonator and pipe assembly features a 2-inch outlet outside diameter, matching OEM specifications for the Acura MDX. The muffler body is round, measuring 20 inches in length, 5 inches in width, and 5 inches in height, ensuring proper exhaust flow and noise reduction. The assembly includes one inlet with a 3 bolt welded flange and two outlets with 2 bolt welded flanges, facilitating secure and precise installation. The entire unit is constructed from steel with an aluminized finish, providing resistance to rust and corrosion over time.
Applications and Problem Solving
This Walker exhaust resonator and pipe assembly is used to replace worn or damaged exhaust components on Acura MDX vehicles. It addresses several common issues:
- Excessive exhaust noise due to damaged resonator or muffler
- Exhaust leaks caused by cracked or corroded pipes
- Reduced engine performance from restricted exhaust flow
- Failed emissions tests related to exhaust system integrity
- Corrosion damage from road salt or environmental exposure
Installation Notes and Tips
Installation requires proper alignment of the 3 bolt welded flange inlet and 2 bolt welded flange outlets to the existing exhaust system. Ensure all flange bolts are torqued to manufacturer specifications to prevent leaks. Due to the steel construction, using anti-seize lubricant on bolts is recommended to ease future removal. This assembly is designed for direct replacement on compatible Acura MDX models, minimizing modification needs.
Quality Assurance and Warranty
Walker exhaust components are manufactured to meet or exceed OEM standards, ensuring reliable fit and function. The aluminized steel construction offers enhanced corrosion resistance for extended service life. While specific warranty details are not provided, Walker products typically come with a limited warranty against defects in materials and workmanship.
| Brand | Walker |
| Part Number | 56289 |
| Outlet Outside Diameter | 2 |
| Muffler Body Length | 20 |
| Pipe Material | Steel |
| Overall Length | 64.125 |
| Body 1 Height | 5 |
| Body 1 Length | 20 |
| Body 1 Shape | Round |
| Body 1 Width | 5 |
| Body 2 Height | 5 |
| Body 2 Length | 20 |
| Body 2 Shape | Round |
| Body 2 Width | 5 |
| Body Material | Steel |
| Finish | Aluminized |
| Inlet Quantity | 1 |
| Inlet Type | 3 bolt welded flange |
| Outlet Quantity | 2 |
| Outlet Type | 2 bolt welded flange |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | Acura | MDX | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2012 | Acura | MDX | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2011 | Acura | MDX | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
| 2010 | Acura | MDX | 3.7L | V6 | N/A | If welded assembly, replace all required parts |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.