Walker 53991 Exhaust Resonator and Pipe Assembly - Left

Brand Walker 53991
Position Left
Outlet Outside Diameter 2.5
Muffler Body Length 13.875
Pipe Material Steel
Inlet Inside Diameter 2
Overall Length 28.75
Body 1 Height 4.72
Body 1 Length 13.875
Body 1 Shape Irregular
Body 1 Width 12.75
Body Material Steel
Finish Aluminized
Inlet Quantity 1
Inlet Type Pipe connection
Outlet Quantity 1
Outlet Type Spout
Fits Buick and GMC · 9 vehicles

OE-style sound. Precise tuning helps match original exhaust tone and flow characteristics.

Aluminized steel. Corrosion-resistant construction for demanding exhaust environments.

Factory-style routing. Pipe connection inlet and spout outlet support original-system layout.

Cross-references 22751826 and 23452801 for the same application. See all 2.

$239.20Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $239.20
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

Walker 53991 is an exhaust resonator and pipe assembly built to match original-system fit, sound, and flow characteristics. It is engineered with precise tuning for OE-style exhaust tone and direct replacement service on select applications.

Key Features

  • Aluminized steel construction for corrosion resistance in exhaust service.
  • Steel pipe and steel body for durable, application-specific fitment.
  • Irregular body shape with tuned resonator design for controlled exhaust sound.
  • Pipe connection inlet and spout outlet for factory-style exhaust routing.
  • Walker 53991 supports OE-style flow characteristics and sound quality.

Detailed Description

Walker 53991 exhaust resonator and pipe assembly is built for drivers replacing a worn or damaged exhaust section with a part that follows original-system dimensions and acoustic behavior. The aluminized finish, 2-inch inlet, and 2.5-inch outlet support factory-style exhaust routing, while the 28.75-inch overall length and 13.875-inch body length reflect the assembly’s application-specific design. This part cross-references GM 22751826 and 23452801 for the same application. Fits 2013-2017 Buick Enclave, left. Fits 2013-2016 GMC Acadia, left.

Common Uses

  • Restoring exhaust tone after resonator damage or internal wear.
  • Replacing a corroded exhaust pipe assembly.
  • Addressing exhaust leaks at the resonator or pipe connection.
  • Returning the exhaust system to original routing and sound characteristics.

Installation Notes

Verify inlet and outlet diameters, overall length, and body dimensions before installation. This assembly uses a pipe connection inlet and spout outlet, so confirm the existing exhaust layout and welded assembly requirements on the vehicle before fitting. Fits 2013-2017 Buick Enclave, left. Fits 2013-2016 GMC Acadia, left.

Quality Assurance

Walker uses precise tuning technologies to deliver OE-style sound and flow characteristics in exhaust replacement parts.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2017BuickEnclave—3.6LV6Left—
2016BuickEnclave—3.6LV6Left—
2016GMCAcadiaDenali3.6LV6Leftwith Dual Exhaust; If welded assembly, replace all required parts
2015BuickEnclave—3.6LV6Left—
2015GMCAcadiaDenali3.6LV6Leftwith Dual Exhaust; If welded assembly, replace all required parts
2014BuickEnclave—3.6LV6Left—
2014GMCAcadiaDenali3.6LV6Leftwith Dual Exhaust; If welded assembly, replace all required parts
2013BuickEnclave—3.6LV6Left—
2013GMCAcadiaDenali3.6LV6Leftwith Dual Exhaust; If welded assembly, replace all required parts
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
2275182623452801