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Walker 31721 Exhaust Pipe Flange Gasket
Walker Exhaust Pipe Flange Gasket Overview
The Walker 31721 exhaust pipe flange gasket is designed for reliable sealing in exhaust systems of Chevrolet, Pontiac, and Saturn vehicles. Engineered with a perforated metal construction and fiber core, this 3-bolt gasket ensures a secure fit and effective exhaust sealing for models like the Chevrolet Malibu, Pontiac G6, and Saturn Aura.
- Compatible with Chevrolet Malibu, Pontiac G6, and Saturn Aura exhaust systems
- 3-bolt gasket type with precise bolt hole spacing for accurate fitment
- Constructed from perforated metal with fiber core and fire ring for durability
- Thickness of 0.058 inches for optimal sealing performance
- Port dimensions: 2.750 inches length and width for proper exhaust flow
- Bolt hole diameters of 0.5 inches with center-to-center measurements of 4.625, 4.875, and 2.875 inches
Detailed Product Description
The Walker 31721 exhaust pipe flange gasket is specifically designed to meet the sealing requirements of exhaust systems in select Chevrolet, Pontiac, and Saturn vehicles. Its 3-bolt design features bolt hole center-to-center distances of 4.625, 4.875, and 2.875 inches, ensuring precise alignment during installation. The gasket’s perforated metal material combined with a fiber core and fire ring provides resistance to high temperatures and exhaust gases, maintaining a tight seal and preventing leaks. With a thickness of 0.058 inches and port dimensions of 2.750 inches by 2.750 inches, this gasket supports proper exhaust flow and system integrity.
Common Applications and Problem Solving
- Sealing exhaust pipe flanges to prevent exhaust leaks
- Replacing worn or damaged gaskets in Chevrolet Malibu, Pontiac G6, and Saturn Aura exhaust systems
- Eliminating exhaust noise caused by gasket failure
- Preventing harmful exhaust fumes from escaping into the vehicle cabin
- Maintaining proper backpressure for engine performance and emissions control
Installation Notes and Tips
- Ensure mating surfaces are clean and free of debris before installation
- Verify bolt hole alignment using the specified center-to-center measurements
- Use appropriate torque specifications for the 3-bolt flange to avoid gasket damage
- Inspect surrounding exhaust components for wear or damage during replacement
- Replace gasket whenever exhaust flange is disassembled to maintain seal integrity
Quality Assurance and Warranty
Walker exhaust gaskets are manufactured to meet industry standards for durability and performance. The 31721 gasket is constructed with materials designed to withstand high temperatures and corrosive exhaust gases. While specific warranty details may vary, Walker products typically come with a limited warranty against defects in material and workmanship, providing confidence in product reliability for Chevrolet Malibu, Pontiac G6, and Saturn Aura applications.
| Brand | Walker |
| Part Number | 31721 |
| Bolt Hole Center To Bolt Hole Center 1 | 4.625 |
| Bolt Hole Center To Bolt Hole Center 2 | 4.875 |
| Bolt Hole Center To Bolt Hole Center 3 | 2.875 |
| Bolt Hole Diameter | 0.5 |
| Gasket Type | 3 Bolt |
| Material | Perforated Metal With Fiber Core And Fire Ring |
| Port 1 Length | 2.750 |
| Port 1 Width | 2.750 |
| Thickness | 0.058 |
This part fits 33 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Malibu | 3.5L | V6 | N/A | |||
| 2010 | Pontiac | G6 | 3.5L | V6 | N/A | |||
| 2009 | Chevrolet | Malibu | 3.5L | V6 | N/A | |||
| 2009 | Pontiac | G6 | 3.5L | V6 | N/A | |||
| 2008 | Chevrolet | Malibu | LS | 3.5L | V6 | N/A | ||
| 2008 | Chevrolet | Malibu | Classic LS | 3.5L | V6 | N/A | ||
| 2008 | Chevrolet | Malibu | Classic LT | 3.5L | V6 | N/A | ||
| 2008 | Pontiac | G6 | 3.5L | V6 | N/A | |||
| 2008 | Saturn | Aura | 3.5L | V6 | N/A | with Federal Emission System | ||
| 2007 | Chevrolet | Malibu | Maxx LTZ | 3.5L | V6 | N/A | ||
| 2007 | Chevrolet | Malibu | LTZ | 3.5L | V6 | N/A | ||
| 2007 | Chevrolet | Malibu | Maxx LS | 3.5L | V6 | N/A | ||
| 2007 | Chevrolet | Malibu | LT | 3.5L | V6 | N/A | ||
| 2007 | Chevrolet | Malibu | Maxx LT | 3.5L | V6 | N/A | ||
| 2007 | Chevrolet | Malibu | LS | 3.5L | V6 | N/A | ||
| 2007 | Pontiac | G6 | Sedan | 3.5L | V6 | N/A | ||
| 2007 | Saturn | Aura | 3.5L | V6 | N/A | |||
| 2006 | Chevrolet | Malibu | Maxx LT | 3.5L | V6 | N/A | ||
| 2006 | Chevrolet | Malibu | LT | 3.5L | V6 | N/A | ||
| 2006 | Chevrolet | Malibu | Maxx LS | 3.5L | V6 | N/A | ||
| 2006 | Chevrolet | Malibu | Maxx LTZ | 3.5L | V6 | N/A | ||
| 2006 | Chevrolet | Malibu | LTZ | 3.5L | V6 | N/A | ||
| 2006 | Pontiac | G6 | Sedan | 3.5L | V6 | N/A | ||
| 2005 | Chevrolet | Malibu | Maxx LT | 3.5L | V6 | N/A | ||
| 2005 | Chevrolet | Malibu | LT | 3.5L | V6 | N/A | ||
| 2005 | Chevrolet | Malibu | Maxx LS | 3.5L | V6 | N/A | ||
| 2005 | Chevrolet | Malibu | LS | 3.5L | V6 | N/A | ||
| 2005 | Pontiac | G6 | Sedan | 3.5L | V6 | N/A | ||
| 2004 | Chevrolet | Malibu | LT | 3.5L | V6 | N/A | Must Use with Part Number(s) 16437 | |
| 2004 | Chevrolet | Malibu | Maxx LT | 3.5L | V6 | N/A | Must Use with Part Number(s) 16437 | |
| 2004 | Chevrolet | Malibu | Maxx | 3.5L | V6 | N/A | Must Use with Part Number(s) 16437 | |
| 2004 | Chevrolet | Malibu | Maxx LS | 3.5L | V6 | N/A | Must Use with Part Number(s) 16437 | |
| 2004 | Chevrolet | Malibu | LS | 3.5L | V6 | N/A | Must Use with Part Number(s) 16437 |
* 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.