Walker 21919 Exhaust Muffler
OE Quality 60-Day Returns
Walker
 Quiet-Flow SS

Walker 21919 Exhaust Muffler

Brand Walker 21919
Muffler Type Reflection
Finish Natural
Universal Or Specific Fit Specific
Shape Oval
Grade Type Regular
Inlet Inside Diameter 2.625
Body Width 11
Inlet Quantity 1
Outlet Inside Diameter 2.625
Outlet Quantity 1
Reversible No
Tunable No
Overall Length 25
Body Height 5.5
Body Length 21
Body Material Stainless steel
Inlet 1 Inside Diameter 2.625
Inlet 1 Type Pipe connection
Inlet Configuration Offset
Inlet Offset 3.5
Inlet Type Pipe connection
Outlet 1 Inside Diameter 2.625
Outlet 1 Type Pipe connection
Outlet Configuration Center
Outlet Type Pipe connection
Product line Quiet-Flow SS
Fits Chevrolet and GMC · 40 vehicles

100% stainless steel. Corrosion-resistant construction helps the muffler stand up to harsh exhaust conditions.

Precision fit. Built for a specific fit with OE-style sound and superior flow.

Reflection muffler. Engineered to smooth exhaust flow while keeping sound controlled.

Cross-references Anchor 2621 for the same application. See all 1.

$114.94Free 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 $114.94
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Exhaust Muffler options

Walker Quiet-Flow SS Muffler for Silverado and Sierra

Walker Quiet-Flow SS Muffler Part Number 21919 is a specific-fit exhaust muffler built with 100% stainless-steel construction. It is shaped for direct replacement use on select 2014-2018 Chevrolet Silverado 1500 and GMC Sierra 1500 applications, with OE-style sound and precision fitment.

Quiet-Flow SS Product Line

The Quiet-Flow SS line is Walker’s stainless-steel muffler family for domestic and import vehicles. This series focuses on fit accuracy, steady exhaust flow, and a factory-like sound profile, making it a practical choice for drivers replacing a worn muffler on a Silverado 1500 or Sierra 1500.

Key Features

  • Part Number 21919
  • Specific-fit exhaust muffler for select Chevrolet Silverado 1500 and GMC Sierra 1500 models
  • 100% stainless-steel body material with natural finish
  • Oval muffler shape with reflection-style internal design
  • 2.625-inch inlet and 2.625-inch outlet
  • Offset inlet and center outlet configuration
  • Overall length: 25 inches; body length: 21 inches; body width: 11 inches; body height: 5.5 inches

Detailed Description

Walker Quiet-Flow SS Muffler 21919 is engineered as a direct replacement exhaust muffler for 2014-2018 Chevrolet Silverado 1500 and 2014-2018 GMC Sierra 1500 applications. The stainless-steel construction supports corrosion resistance, while the reflection muffler design and OE-style sound profile help maintain a factory-like exhaust note after replacement. The offset inlet and center outlet layout, along with the 2.625-inch pipe connection size, make this muffler a fitment-specific solution for the listed trucks.

This part cross-references Anchor 2621 for the same application.

What It Helps Address

  • Rust or corrosion in the original muffler body
  • Exhaust noise from a damaged or deteriorated muffler
  • Restricted exhaust flow caused by internal muffler wear
  • Fitment issues when replacing a factory-style muffler on Silverado 1500 or Sierra 1500 trucks
  • Loss of OE-like exhaust tone after muffler failure

Installation Notes and Tips

Compatible With 2014-2018 Chevrolet Silverado 1500 and 2014-2018 GMC Sierra 1500, N/A. Verify inlet and outlet diameter, offset, and center outlet layout before installation. If the vehicle uses a welded exhaust assembly, replace all required related parts during service to complete the repair correctly.

Quality Assurance

Walker Quiet-Flow SS mufflers are built with stainless-steel construction and are offered for a wide range of domestic and import vehicles. This application is listed with a limited lifetime warranty.

Related reading

This part fits 40 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersWheel BasePositionNotes
2018ChevroletSilverado 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018ChevroletSilverado 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018ChevroletSilverado 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018ChevroletSilverado 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018GMCSierra 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018GMCSierra 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018GMCSierra 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2018GMCSierra 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletSilverado 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletSilverado 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletSilverado 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017ChevroletSilverado 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017GMCSierra 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017GMCSierra 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017GMCSierra 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2017GMCSierra 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletSilverado 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletSilverado 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletSilverado 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016ChevroletSilverado 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016GMCSierra 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016GMCSierra 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016GMCSierra 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2016GMCSierra 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletSilverado 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletSilverado 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletSilverado 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015ChevroletSilverado 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015GMCSierra 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015GMCSierra 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015GMCSierra 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2015GMCSierra 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletSilverado 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletSilverado 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletSilverado 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014ChevroletSilverado 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014GMCSierra 15004.3LV6153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014GMCSierra 15004.3LV6143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014GMCSierra 15005.3LV8143.5"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
2014GMCSierra 15005.3LV8153.0"N/APremium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2621