Walker 50485 Exhaust Y Pipe - Rear

Brand Walker 50485
Position Rear
Bend Type Compression
Finish Aluminized
Grade Type Regular
Inlet Outside Diameter 2.25
Inlet Type Pipe Connection
Length 38.75
Material Steel
Mounting Hardware Included no
Outlet Outside Diameter 2
Outlet Type Pipe Connection
Pipe Wall Thickness 0.05
Universal Or Specific Fit Specific
Fits Buick, Chevrolet, and GMC · 33 vehicles

Specific fit. Precision-checked for a precise fit and quick, easy installation.

Aluminized steel. Built for durability with a corrosion-resistant finish.

Exhaust Y pipe. Connects one inlet to two outlets for exhaust routing.

Cross-references AP Exhaust 94100 for the same application. See all 1.

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Free returns within 60 days if it doesn't fit when fitment is verified.

Walker 50485 Exhaust Y Pipe for Rear Fitment

Walker 50485 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 installation on the listed Buick, Chevrolet, and GMC applications.

Key Features

  • Aluminized steel construction for long-term exhaust service
  • Specific-fit design for direct replacement on listed vehicles
  • 2.25-inch inlet outside diameter
  • Dual 2-inch outlet outside diameters
  • 38.75-inch overall length
  • Compression bend type with pipe connection inlet and outlets
  • 0.05-inch pipe wall thickness
  • Rear-position exhaust routing

Detailed Product Overview

This Walker exhaust Y pipe, part number 50485, is made for rear exhaust routing on select Buick Enclave, Chevrolet Traverse, and GMC Acadia applications. It uses a single 2.25-inch inlet and dual 2-inch outlets to match the factory-style exhaust split on vehicles equipped with dual exhaust where noted. The aluminized finish and steel construction provide a practical replacement solution for restoring exhaust flow and maintaining proper pipe alignment. Walker 50485 is a direct-fit exhaust Y pipe for drivers replacing a worn or damaged rear section on compatible Buick Enclave, Chevrolet Traverse, and GMC Acadia models.

This part cross-references AP Exhaust (e.g., 94100) for the same application.

Common Problems This Part Can Address

  • Rust-through or corrosion in the rear exhaust pipe section
  • Cracked or leaking Y pipe joints
  • Restricted exhaust flow from damaged piping
  • Fitment issues after replacing a welded rear assembly
  • Noise from exhaust leaks at the rear pipe connection

Installation Notes and Tips

Compatible With 2008-2017 Buick Enclave, rear; 2013-2017 Chevrolet Traverse, rear; 2009-2016 GMC Acadia, rear; and 2017 GMC Acadia Limited, rear, with dual exhaust where noted. Some applications note that if the vehicle uses a welded assembly, all required parts should be replaced. Verify inlet and outlet diameters, rear routing, and exhaust configuration before installation to confirm the correct replacement path for your vehicle.

Quality Assurance

Walker manufactures this pipe with precision bending and fixture checking to support accurate fitment and consistent installation on the listed applications.

This part fits 33 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2017BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2017ChevroletTraversePremier3.6LV6RearIf welded assembly, replace all required parts
2017ChevroletTraverseLT3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2017GMCAcadia Limited—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2016BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2016ChevroletTraverseLTZ3.6LV6RearIf welded assembly, replace all required parts
2016ChevroletTraverseLT3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2016GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2015BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2015ChevroletTraverseLTZ3.6LV6RearIf welded assembly, replace all required parts
2015ChevroletTraverseLT3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2015GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2014BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2014ChevroletTraverseLTZ3.6LV6RearIf welded assembly, replace all required parts
2014ChevroletTraverseLT3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2014GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2013BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2013ChevroletTraverseLTZ3.6LV6RearIf welded assembly, replace all required parts
2013ChevroletTraverseLT3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2013GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2012BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2012ChevroletTraverseLTZ3.6LV6Rear—
2012GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2011BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2011ChevroletTraverseLTZ3.6LV6Rear—
2011GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2010BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2010ChevroletTraverseLTZ3.6LV6Rear—
2010GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2009BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
2009ChevroletTraverseLTZ3.6LV6Rear—
2009GMCAcadia—3.6LV6Rearwith Dual Exhaust; If welded assembly, replace all required parts
2008BuickEnclave—3.6LV6RearIf welded assembly, replace all required parts
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 94100