Walker 21504 Exhaust Muffler

Walker Quiet-Flow SS Muffler for Tahoe and Yukon

Walker Quiet-Flow SS Part Number 21504 is a specific-fit exhaust muffler built with stainless-steel body construction and an OE-style sound profile. It is engineered for direct replacement on select Chevrolet Tahoe and GMC Yukon applications, with a combination muffler design that supports factory-style exhaust routing.

Key Features

• Specific-fit exhaust muffler for select domestic SUV applications
• Stainless-steel body construction for corrosion resistance
• Oval muffler shape with aluminized finish
• Combination muffler type with offset inlet and outlet configuration
• 2-inch inlet inside diameter and 2.75-inch outlet outside diameter
• Precision-fit design for factory-style exhaust replacement
• OE-style sound characteristics

Product Details

The Walker Quiet-Flow SS line focuses on direct-fit exhaust replacement with stainless-steel construction and controlled exhaust flow. Part Number 21504 uses an oval body measuring 22 inches long, 9 inches wide, and 7 inches high, with a 26-inch overall length. The dual 2-inch pipe-connection inlets and single 2.75-inch pipe-connection outlet support the original exhaust layout on the listed Chevrolet Tahoe and GMC Yukon applications. This part cross-references Anchor 2228 for the same application.

Compatible With 1996-1997 Chevrolet Tahoe, N/A; 1998-1999 Chevrolet Tahoe, N/A; and 1996-1997 GMC Yukon, N/A. Walker Quiet-Flow SS Part Number 21504 is a direct replacement choice for drivers searching for a 1996-1999 Chevrolet Tahoe muffler, 1996-1997 GMC Yukon exhaust muffler, or a stainless-steel OE-style muffler for these factory configurations.

Common Issues This Muffler Can Address

• Rust or corrosion in the original muffler body
• Exhaust noise increase from a worn internal muffler core
• Factory exhaust restriction caused by age-related deterioration
• Need for a direct-fit replacement on listed Tahoe and Yukon applications
• Loss of OE-style exhaust tone after muffler failure

Installation Notes and Tips

Verify inlet and outlet diameters, offset configuration, and overall length before installation. This muffler is not reversible and is not tunable, so orientation should match the vehicle’s exhaust routing. For welded assemblies, replace all required parts as noted in the fitment data. Confirm the vehicle’s emission system configuration before ordering, especially on 1998-1999 Chevrolet Tahoe applications with Federal Emission System notes.

Quality Assurance

Walker Quiet-Flow SS mufflers are positioned as stainless-steel replacement parts with precision fit and OE-style sound characteristics for broad domestic and import coverage. Part Number 21504 is built for the listed vehicle applications and follows Walker’s Quiet-Flow SS product-line approach to direct-fit exhaust service.