Walker 50473 Exhaust Y Pipe - Rear

Walker 50473 Exhaust Y Pipe for GMC Acadia and Saturn Outlook

Walker 50473 is a specific-fit exhaust Y pipe built from aluminized steel for durability and corrosion resistance. It is formed with precision benders and fixture-checked for accurate alignment, helping support a straightforward exhaust repair on select GMC Acadia and Saturn Outlook applications.

• Aluminized steel construction for long-term exhaust service
• Specific fit for direct replacement on confirmed applications
• 2.25 in. inlet outside diameter and dual 2 in. outlet outside diameter
• 40 in. overall length with compression bend design
• Pipe connection inlet and outlet ends for exhaust system integration
• 0.05 in. pipe wall thickness
• Walker 50473 for rear exhaust routing on select vehicles

Detailed Product Overview

This Walker exhaust Y pipe is engineered for the rear section of the exhaust system on 2007-2008 GMC Acadia and 2007-2008 Saturn Outlook applications, including dual exhaust configurations where listed. The aluminized finish and steel construction help the pipe withstand everyday exhaust heat and road exposure, while the precision-formed bends support proper routing and fitment. Walker 50473 is a practical replacement when the original Y pipe is damaged, rusted, or no longer sealing correctly.

This part cross-references OE numbers 15220662 and 15220664 for the same application.

Common Repair Uses

• Replacing a rusted or perforated rear exhaust Y pipe
• Restoring exhaust flow after a cracked or leaking pipe section
• Correcting fitment issues on a damaged factory exhaust assembly
• Addressing exhaust noise caused by leaks at the pipe connection
• Repairing rear exhaust routing on GMC Acadia and Saturn Outlook models

Installation Notes and Tips

Compatible With 2007-2008 GMC Acadia, rear, and 2007-2008 Saturn Outlook, rear, with dual exhaust where specified. If the original system is a welded assembly, replace all required related parts to complete the repair correctly. Verify inlet and outlet diameters, routing, and connection style before installation to confirm alignment with the existing exhaust system.

Quality Assurance

Walker manufactures this pipe from aluminized steel and uses precision bending and fixture checks to support consistent fitment and installation accuracy. The part number 50473 is built as a direct-fit exhaust replacement for the listed applications.