Walker 21742 Exhaust Muffler

Walker Quiet-Flow SS Muffler for Ford E-Series

Walker Quiet-Flow SS 21742 is a specific-fit exhaust muffler built with 100% stainless-steel construction for corrosion resistance and long-term durability. It is engineered for OE-style sound, precise fitment, and improved exhaust flow on select Ford E-150, E-250, and E-350 Super Duty applications.

Key Features

• Specific-fit exhaust muffler for select Ford E-Series vans
• 100% stainless-steel body material with natural finish
• Reflection-style muffler design for OE-style sound characteristics
• Oval body shape with 30-inch overall length
• 3-inch inlet and 3-inch outlet with offset configuration
• Reversible design for added installation flexibility
• Walker Quiet-Flow SS product line for domestic and import vehicle coverage

Product Details

This Walker muffler part number 21742 uses a 7-inch body width, 9-inch body height, and 24-inch body length, with pipe-connection inlet and outlet ends. The stainless-steel construction supports durability in exhaust service, while the reflection muffler type is selected to manage exhaust sound without changing the vehicle’s basic exhaust character. For buyers searching for a 3-inch stainless steel muffler for Ford E-150, E-250, or E-350 Super Duty, this part number 21742 matches the listed application data.

The Quiet-Flow SS line is Walker’s stainless-steel muffler family, focused on precise fit and OE-style sound for a broad range of domestic and import vehicles. This part cross-references Anchor 2493 for the same application.

What It Helps Address

• Rust or corrosion in an original muffler
• Exhaust noise from a worn or damaged muffler
• Restricted exhaust flow caused by internal muffler deterioration
• Fitment issues when replacing a factory-style muffler on select Ford E-Series vans
• Need for a direct-fit stainless-steel replacement in a 3-inch exhaust system

Installation Notes

Compatible With 2009-2016 Ford E-350 Super Duty, N/A; 2009-2014 Ford E-150, N/A; and 2009-2014 Ford E-250, N/A. Fitment notes include Premium, Limited Lifetime Warranty, and application exclusions such as cutaway chassis or ambulance package where listed. If the exhaust assembly is welded, replace all required parts during service to maintain proper alignment and sealing. Verify inlet and outlet orientation, offset dimensions, and overall length before installation.

Quality Assurance

Walker Quiet-Flow SS mufflers are built with stainless-steel construction and OE-style sound tuning for service replacement use. Part number 21742 is part of Walker’s Quiet-Flow SS line, which is offered for many domestic and import vehicles and is specified here for the listed Ford E-Series applications.