OE Quality
60-Day Returns

Walker 21424 Exhaust Muffler
Overview of Walker Quiet-Flow SS Exhaust Muffler 21424
The Walker Quiet-Flow SS Exhaust Muffler 21424 is designed specifically for Chevrolet S10 and GMC Sonoma models. This oval-shaped muffler features a durable stainless steel body with an aluminized finish, engineered to provide reliable exhaust flow and noise reduction tailored to your vehicle's specifications.
- Specific fit for Chevrolet S10 and GMC Sonoma
- Oval body shape measuring 9.75 inches wide and 4.25 inches high
- Stainless steel construction with aluminized finish for corrosion resistance
- Inlet and outlet pipe connections with 2.25-inch inside diameters
- Offset inlet configuration with a 2.875-inch offset
- Overall length of 23 inches and body length of 19 inches
- Single inlet and outlet, both center outlet configuration
- Combination muffler type designed for balanced performance
Detailed Product Description
The Walker Quiet-Flow SS 21424 exhaust muffler is engineered as a specific fit replacement for Chevrolet S10 and GMC Sonoma trucks. Its oval shape and combination muffler design help optimize exhaust flow while reducing noise levels. Constructed from stainless steel, the muffler body offers enhanced durability and resistance to rust and corrosion, supported by an aluminized finish that extends service life under harsh conditions.
The muffler features a 2.25-inch inside diameter inlet and outlet, both utilizing pipe connection types for straightforward installation. The inlet is offset by 2.875 inches, which aligns with the exhaust system layout of the specified vehicle models. With a total length of 23 inches and a body length of 19 inches, this muffler fits precisely within the exhaust system without requiring modifications.
Walker Quiet-Flow SS Product Line
The Quiet-Flow SS line by Walker focuses on providing specific-fit stainless steel mufflers designed to meet OEM specifications. This product line emphasizes durability and sound control, making it suitable for vehicles like the Chevrolet S10 and GMC Sonoma that require reliable exhaust components. The 21424 muffler exemplifies the Quiet-Flow SS commitment to quality materials and precise fitment.
Applications and Problem Solving
- Replacement for worn or damaged mufflers on Chevrolet S10 and GMC Sonoma
- Reduces excessive exhaust noise caused by muffler failure
- Prevents exhaust leaks that can affect engine performance
- Resists corrosion and rust in harsh driving environments
- Maintains proper exhaust flow for optimal vehicle operation
Installation Notes and Tips
This muffler is designed for specific fitment on Chevrolet S10 and GMC Sonoma models, ensuring compatibility with factory exhaust systems. The pipe connection inlet and outlet simplify installation, but professional installation is recommended to ensure proper alignment and secure connections. Note that this muffler is not reversible and is not tunable, so correct orientation during installation is important.
Quality Assurance and Warranty
Walker manufactures the Quiet-Flow SS 21424 muffler with high-grade stainless steel and aluminized finish to provide long-lasting performance. While specific warranty details are not provided here, Walker products typically meet industry standards for durability and fitment. For warranty information, consult the manufacturer or authorized distributor.
| Brand | Walker |
|---|---|
| Part Number | 21424 |
| Position | Quiet-Flow SS |
| Universal Or Specific Fit | Specific |
| Shape | Oval |
| Grade Type | Regular |
| Inlet Inside Diameter | 2.25 |
| Body Width | 9.75 |
| Inlet Quantity | 1 |
| Outlet Inside Diameter | 2.25 |
| Outlet Quantity | 1 |
| Reversible | No |
| Tunable | No |
| Overall Length | 23 |
| Body Height | 4.25 |
| Body Length | 19 |
| Body Material | Stainless steel |
| Finish | Aluminized |
| Inlet 1 Inside Diameter | 2.25 |
| Inlet 1 Type | Pipe connection |
| Inlet Configuration | Offset |
| Inlet Offset | 2.875 |
| Inlet Type | Pipe connection |
| Muffler Type | Combination |
| Outlet 1 Inside Diameter | 2.25 |
| Outlet 1 Type | Pipe connection |
| Outlet Configuration | Center |
| Outlet Type | Pipe connection |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Wheel Base | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2003 | Chevrolet | S10 | 2.2L | L4 | 117.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | Chevrolet | S10 | 2.2L | L4 | 122.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | Chevrolet | S10 | 2.2L | L4 | 108.3" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | GMC | Sonoma | 2.2L | L4 | 108.3" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | GMC | Sonoma | 2.2L | L4 | 117.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2003 | GMC | Sonoma | 2.2L | L4 | 122.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Chevrolet | S10 | 2.2L | L4 | 117.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Chevrolet | S10 | 2.2L | L4 | 122.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | Chevrolet | S10 | 2.2L | L4 | 108.3" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | GMC | Sonoma | 2.2L | L4 | 108.3" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | GMC | Sonoma | 2.2L | L4 | 117.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2002 | GMC | Sonoma | 2.2L | L4 | 122.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Chevrolet | S10 | 2.2L | L4 | 117.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Chevrolet | S10 | 2.2L | L4 | 122.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | Chevrolet | S10 | 2.2L | L4 | 108.3" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | GMC | Sonoma | 2.2L | L4 | 108.3" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | GMC | Sonoma | 2.2L | L4 | 117.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
| 2001 | GMC | Sonoma | 2.2L | L4 | 122.9" | N/A | Premium; Limited Lifetime Warranty; If welded assembly, replace all required parts; Quiet-Flow SS |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.