Walker 42531 Exhaust Stack Pipe - Rear

Walker 42531 Exhaust Stack Pipe Overview

Walker 42531 is a universal exhaust stack pipe built from aluminized steel for corrosion resistance and long-term service. It uses 4-inch pipe connections at both ends and measures 24 inches in length, making it a practical replacement for custom exhaust routing and rear exhaust repairs on select heavy-duty applications.

Compatible With 2007-2009 Dodge Ram 2500 rear and 2007-2009 Dodge Ram 3500 rear, including OE design and short bed cut-to-fit applications.

Key Features

• Aluminized steel construction for durability
• 24-inch overall length
• 4-inch inlet and 4-inch outlet pipe connections
• Universal fit for flexible installation use
• Precision-formed and fixture-checked for fit consistency
• Walker part number 42531 for easy identification

Detailed Product Description

Walker 42531 is a replacement exhaust stack pipe engineered with 100% aluminized steel and formed with precision bending equipment to help maintain accurate dimensions. The pipe is fixture checked during manufacturing to support a consistent fit during installation. This makes it a solid choice for rear exhaust service on 2007-2009 Dodge Ram 2500 and 2007-2009 Dodge Ram 3500 trucks, especially where OE-style routing or a cut-to-fit rear section is needed. This part cross-references Gates (e.g., 23059, 24737) for the same application.

Common Uses

• Replacing a damaged or rusted rear exhaust stack pipe
• Restoring exhaust routing on a Dodge Ram 2500 rear application
• Servicing a Dodge Ram 3500 rear exhaust with OE design requirements
• Addressing fitment issues on short bed rear exhaust layouts
• Supporting custom exhaust repair where a 4-inch pipe connection is required

Installation Notes and Tips

Verify inlet and outlet diameters before installation to confirm 4-inch pipe connection compatibility. Because this is a universal exhaust stack pipe, final fit may require trimming or adaptation depending on the vehicle and exhaust layout. For 2007-2009 Dodge Ram 3500 short bed applications, follow the cut-to-fit note in the fitment data and confirm rear routing before welding or clamping.

Quality Assurance

Walker manufactures this replacement pipe using aluminized steel and checks it in fixtures to help maintain dimensional accuracy and installation consistency. Walker also offers broad engine-to-tailpipe coverage across replacement emissions and exhaust components for domestic, import, and commercial vehicles.